CN201069470Y - Real time online monitoring device for integrated error of high-voltage power calculation device - Google Patents

Real time online monitoring device for integrated error of high-voltage power calculation device Download PDF

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CN201069470Y
CN201069470Y CNU2007201281347U CN200720128134U CN201069470Y CN 201069470 Y CN201069470 Y CN 201069470Y CN U2007201281347 U CNU2007201281347 U CN U2007201281347U CN 200720128134 U CN200720128134 U CN 200720128134U CN 201069470 Y CN201069470 Y CN 201069470Y
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曹锐
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Youteaoke Electronics TECH Co Ltd Taiyuan City
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Youteaoke Electronics TECH Co Ltd Taiyuan City
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Abstract

The utility model discloses a real-time on-line monitoring device for detecting overall errors of a high-voltage potential transformer, which belongs to the technical field of high-voltage and heavy current detection. The real-time on-line monitoring device for overall errors of the high-voltage potential transformer mainly comprises a real-time on-line monitoring portion for detecting the metering errors of a high voltage potential transformer, the metering errors of a high-voltage current transformer, the secondary circuit pressure drop of the high-voltage potential transformer, and the metering errors of an electric energy meter; and at least one detection accessory for the real-time zero-error detection of voltage and current information, current amplitude and phase information and electric energy metrical information and a comprehensive detection accessory thereof, wherein, the detection accessories are detection terminal and/or detection extension. The utility model has the advantages that the device is an innovative technological achievement in the field of high-voltage electric energy detection; has reasonable design and easy use; realizes the real-time, on-line and continuous monitoring of overall errors of high-voltage electric energy metering equipment; and provide a new approach to the detection of high-voltage electric energy metering equipment.

Description

High-voltage electric-energy meter composition error real time on-line monitoring equipment
One. technical field
The disclosed high-voltage electric-energy meter composition error of the utility model real time on-line monitoring equipment belongs to high pressure (more than 10KV), forceful electric power electric energy metrical and detection technique field, and what be specifically related to is the high-voltage electric-energy meter composition error real time on-line monitoring equipment of a kind of real-time online, true and accurate, long term monitoring.
Two. background technology
In electric system was produced, electric energy is its final products, and was very important to the metering of electric energy.Electric power meter is the main tool that electric energy is measured, and is to send out, be used for the important means for the electricity consumption trade settlement for, electricity consumption three parts.Electric power meter accurately whether, be directly connected to send out, for, electricity consumption three parts's economic interests.Therefore, the relevant metrological legislation regulation of country must regularly be carried out field test to the accuracy of electric power meter.
High-voltage electric-energy meter is made up of voltage transformer (VT) (PT), current transformer (CT) and electric energy meter usually.Correspondingly, the error that caused by PT error, CT error, PT secondary voltage drop of the composition error of high-voltage electric-energy meter and several parts such as error of electric energy meter are formed.At present high-voltage electric-energy meter is carried out the method scene of mainly containing of field test in X-ray inspection X and the on-the-spot two kinds of methods of check that have a power failure.On-the-spot online method of inspection is regularly to carry equipment such as electric energy performance school instrument and PT secondary voltage drop tester to on-the-spot, under the high-voltage electric-energy meter duty, measures the sum of errors PT secondary voltage drop equivalent of the electric energy meter in the electric power meter.But owing to economically particularly safety on reason, do not allow in the High Voltage electric line of charging operation the interim micron order current transformer and the voltage transformer (VT) that need special reinforced insulation of inserting to compare, thereby the method can not be measured PT sum of errors CT error with on-the-spot CT and the PT that moves.On-the-spot power failure method of inspection is the defective that can not measure PT sum of errors CT error at the online method of inspection in above-mentioned scene, when system blackout, carries PT and CT power failure checkout equipment to in-site measurement PT sum of errors CT error.Because PT and CT power failure checkout equipment are made up of very heavy stepup transformer, current lifting device and standard etc., and need coordinate power off time with the parties concerned, can't accurately obtain the measuring error under PT and the true running status of CT when have a power failure measuring, thereby on-the-spot power failure method of inspection is wasted time and energy and not too accurate in addition.Therefore, the scene that existing high-voltage electric-energy meter field test method all can't satisfactory solution electric power meter each several part error is detected, and real-time online that more can't satisfactory solution electric power meter each several part error detects for a long time.Thereby, study a kind of method of testing that can real-time online measuring high-voltage electric-energy meter composition error and demand urgently and look forward to.We study successful this method and provide and design a kind of brand-new high-voltage electric-energy meter composition error testing apparatus, the high-voltage electric-energy meter composition error online in real time that can't finish of can finishing is over measured, and this equipment is reliable, practical, can measure the high-voltage electric-energy meter composition error exactly, solved the difficult problem that the electric energy detection field can't be monitored the high-voltage electric-energy meter composition error for a long time, the electric energy detection that yet is through with field does not have the history that high-voltage electric-energy meter composition error proving installation is arranged always, and this is innovative thinking and creative invention.The technical characterstic of " high-voltage electric-energy meter composition error real time on-line monitoring equipment " of the present utility model is: this new checkout equipment is implemented under high pressure (more than 10KV), forceful electric power or is used, detection under high pressure, the forceful electric power or metering can propose comprehensively detection or measurement technology undoubtedly, more stern challenge, need the electric energy metrical versatility to rise to the level that high pressure, forceful electric power standard and safety etc. require.This new " high-voltage electric-energy meter composition error real time on-line monitoring equipment " energy online in real time, direct composition error of accurately monitoring high-voltage electric energy measurement chronically of the present utility model; can protect economic interests better, also contribute for the scientific-technical progress of electric utility for the electricity consumption both sides.
Three. summary of the invention
The purpose of invention of the present utility model is: the technical scheme that this high-voltage electric-energy meter composition error real time on-line monitoring equipment is provided to society, for accurate means that a kind of brand-new monitoring high-voltage electric-energy meter composition error is provided for electricity consumption both sides and checkout equipment conveniently, also do some work for the scientific-technical progress of electric utility.
The technical solution of the utility model thes contents are as follows: about this high-voltage electric-energy meter composition error real time on-line monitoring equipment, the main part of this equipment includes the metering of described precision or detects the mechanism of voltage and current information and structure-and be meter error of high-voltage mutual inductor real time on-line monitoring part, include the mechanism and the structure of special-purpose metering or detection current amplitude and phase value information--be high-tension current inductor error in dipping real time on-line monitoring part, also can include the mechanism and the structure of electric energy metrical or detection--be high voltage potential transformer secondary circuit voltage drop real time on-line monitoring part, even the error in dipping real time on-line monitoring part of electric energy meter, more than these meterings or test section should have all available existing public technology contents of which mechanism and structure to solve and design, no longer stating more.The characteristics of this equipment are: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation, it two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.1). described this equipment must comprise or have the detection accessory that at least one real-time, error free or error can detect voltage and current information with ignoring, the detection accessory that at least one real-time, error free or error can detect current amplitude and phase value information must be comprised or have with ignoring, the detection accessory that at least one real-time, error free or error can detect electric energy metrical information must be comprised or have with ignoring; Perhaps this equipment must comprise or have at least one or (as two or three etc.) can be in real time more than one, error free or error can detect voltage and current information with ignoring, detect the common comprehensive detection annex of forming of detection accessory of current amplitude and phase value information and detection electric energy metrical information, described these detection accessory be the test side or/and extension set: this equipment of a. is or/and have at least one metering or detect voltage and current information, or/and have at least one metering or detect current amplitude and phase value information, or/and have test side and the cable thereof that at least one detects electric energy metrical information, or/and have at least one or (as two or three etc.) is made of jointly them more than one comprehensive detection end and cable thereof.In metering, become error free or error little of can ignoring, this just requires test side and cable thereof that fixing structure and fixing known detection error amount must be arranged and with its deduction, become error free or error little of ignoring.Or/and, b. this equipment is or/and have at least one wire transmission or/and the mechanism of the voltage and current information that wireless transmission measured or detected, or/and have at least one wire transmission or/and the mechanism of current amplitude that wireless transmission measured or detected and phase value information, or/and have at least one wire transmission or/and the mechanism of the electric energy metrical information that wireless transmission detected, or/and have the mechanism of at least one comprehensive detection of forming jointly by them, these mechanisms form by electronic mechanism, these mechanisms connect by the cable wire of transmitting that has with the main part of this equipment, or get in touch by wireless transmission/reception, these mechanisms are arranged on the branch body portion outside this equipment body part, constitute the extension set of this equipment, these extension sets are made up of housing and interior electronic mechanism thereof.Described electronic mechanism is made of assemblings such as multiple electronic component, device, assembly, parts, integrated circuit block, electronic circuit and software programs in this way.2). this equipment can be provided with calculation mechanism and structure, and this calculation mechanism includes micro computer or microprocessor and software program and auxiliary circuit, and this calculation mechanism and structure thereof can solve and design with existing public technology contents, no longer stating more.A. this equipment can calculate and draw the meter error of high-voltage mutual inductor value of real time on-line monitoring to sampling or the voltage and current information that detects by mathematical formulae, and wherein mathematical formulae is:
Figure Y20072012813400111
Figure Y20072012813400112
In the formula: f U, δ URatio and the angular difference of-tested high voltage potential transformer under the actual motion load;
f 0, δ 0-unloaded ratio and the unloaded angular difference measured in advance;
f H, δ HRatio and angular difference under-the rated load measured in advance;
I X-actual motion load is the secondary current of high voltage potential transformer down;
I HSecondary current under the-rated load measured in advance;
Figure Y20072012813400113
The angle of impedance of-actual motion load, i.e. phase angle between high voltage potential transformer secondary voltage and secondary current;
Figure Y20072012813400114
Angle of impedance under the-rated load measured in advance;
(%)-result of calculation is percentage;
(')-result of calculation unit is for dividing.B. each error that will monitor of this calculation mechanism is passed through the mathematical formulae addition in real time, and to calculate the composition error of high-voltage electric-energy meter, for three-phase three wire system, described mathematical formulae is:
ϵ = 1 P ′ 1 + P ′ 3 × { P ′ 1 ( ϵ W 1 + f Uab + f ab + f Ia ) + P ′ 3 ( ϵ W 3 + f Ucb + f cb + f Ic )
Figure Y20072012813400122
Figure Y20072012813400123
In the formula: ε--the composition error of high-voltage electric-energy meter;
ε W1, ε W3The relative error of-the first phase, third phase power ammeter (%);
P ' 1, P ' 3AC power (electric energy) value that-the first phase, third phase power ammeter record;
f Uab, δ Uab-AB phase voltage mutual inductor (or voltage transformer secondary line voltage
Figure Y20072012813400124
) ratio (%) and angular difference (');
f Ucb, δ Ucb-CB phase voltage mutual inductor (or voltage transformer secondary line voltage
Figure Y20072012813400125
) ratio (%) and angular difference (');
f Ia, δ IaRatio of-A phase current mutual inductor (%) and angular difference (');
f Ic, δ IcRatio of-C phase current mutual inductor (%) and angular difference (');
f Ab, δ AbThe ratio (%) and the angular difference (') of-AB phase voltage secondary circuit voltage drop;
f Cb, δ CbThe ratio (%) and the angular difference (') of-CB phase voltage secondary circuit voltage drop;
(%)-and ratio: percentage;
(')-angular difference: unit is for dividing;
Figure Y20072012813400126
-be respectively
Figure Y20072012813400127
With Between,
Figure Y20072012813400129
With
Figure Y200720128134001210
Between phase angle;
Figure Y200720128134001211
The AB of-electric energy meter place phase voltage, the CB of electric energy meter place phase voltage;
Figure Y200720128134001212
-secondary current phasor.For three-phase four wire system, described mathematical formulae is:
ϵ = 1 P ′ 1 + P ′ 2 + p ′ 3 × { P ′ 1 × ( ϵ W 1 + f Ua 0 + f a 0 + f Ia ) + P ′ 2 × ( ϵ W 2 + f Ub 0 + f b 0 + f Ib )
Figure Y200720128134001214
Figure Y200720128134001216
In the formula: ε--the composition error of high-voltage electric-energy meter;
ε W1, ε W2, ε W3The error (%) of-the first phase, second phase, third phase power ammeter;
f Ia, δ Ia, f Ib, δ Ib, f Ic, δ IcThe ratio (%) and the angular difference (') of-A phase, B phase, C phase current mutual inductor;
f Ua0, δ Ua0, f Ub0, f Ub0, δ Uc0, δ Uc0The ratio (%) and the angular difference (') of-A phase, B phase, C phase voltage mutual inductor;
f A0, δ A0, ε B0, δ C0, f C0, δ C0-be respectively the ratio (%) and the angular difference (') of A, B, C phase voltage secondary circuit voltage drop;
P ' 1, P ' 2, P ' 3-AC power energy value that each phase power ammeter records;
Figure Y20072012813400131
-be respectively With
Figure Y20072012813400133
Between,
Figure Y20072012813400134
With
Figure Y20072012813400135
Between,
Figure Y20072012813400136
With Between phase angle;
Figure Y20072012813400138
The A of-electric energy meter place phase voltage, the B of electric energy meter place phase voltage, the C of electric energy meter place phase voltage;
Figure Y20072012813400139
-secondary current phasor.Wherein, the precision of described employing, the special-purpose metering or the implication of detecting instrument are: one, under high pressure (more than 10KV), forceful electric power (big electric current) situation, meter error of high-voltage mutual inductor is implemented monitoring, the secondary side voltage and current information of monitoring high voltage potential transformer, the high-tension current inductor error in dipping is implemented monitoring, the current amplitude and the phase information of monitoring high-tension current inductor primary side and secondary side; Its two, under high pressure, forceful electric power situation, meter error of high-voltage mutual inductor and high-tension current inductor error in dipping are implemented the long-term monitoring of real-time online.In other words described employing precision, special-purpose metering or detecting instrument must have performances such as high pressure resistant, anti-forceful electric power (big electric current), real-time online use for a long time, measure of precision is satisfactory, safe operation meets the requirements, and could monitor meter error of high-voltage mutual inductor and high-tension current inductor error in dipping.The real-time on-line detecting method of electric energy meter error is: use known electric energy metrical instrument real-time online that electric energy meter error is measured or detects; The ratio of voltage circuit secondary voltage drop and angular difference real-time on-line detecting method are: use the ratio of known secondary voltage drop and angular difference gauging instrument real-time online that the ratio and the angular difference of secondary voltage drop are measured or detect.
According to above-described high-voltage electric-energy meter composition error real time on-line monitoring equipment, technical characterstic also has: the detailed structure of the high-voltage electric energy measurement error real time on-line monitoring equipment of described this equipment has: described this equipment of a. is or/and at least one of band detects the test side of voltage and current information, or/and at least one of band detects the test side of current amplitude and phase value information, or/and have at least one by the comprehensive detection end that they are formed jointly, their structure is: the cable that connects with this Equipment Inspection input end and the voltage and current sample detecting end of end thereof; The cable that connects with this Equipment Inspection input end and the current amplitude of end and phase value sample detecting end; The cable that connects with this Equipment Inspection input end and the comprehensive detection end of end thereof.Its sample detecting end in this way directly and the union end high voltage potential transformer secondary side line of three-phase, high-tension current inductor primary side and secondary side line.B. described this equipment is or/and the split of the voltage and current information that at least one wire transmission of band detects or divide machine mechanism or/and the split of current amplitude that at least one wire transmission of band detects and phase value information or divide machine mechanism, or/and the comprehensive split that comprises voltage and current information, current amplitude and phase value information that at least one wire transmission of band detects or divide machine mechanism.Current amplitude and phase value information institution that its extension set and this equipment room wire transmission detect, the voltage and current information institution that its extension set and this equipment room wire transmission detect, the voltage and current information that its extension set and this equipment room wire transmission detect, the detailed structure of the comprehensive organ of current amplitude and phase value information is: voltage and current information, current amplitude and phase value information, and the mould/number conversion circuit of the sample circuit of their integrated information-controller control--transmission circuit and transmission yarn--interface circuit and connector--input circuit function connection composition, the sample unit of its sample circuit can be arranged on tested high voltage potential transformer secondary side voltage, the sampling position of current information and high-tension current inductor primary side and secondary side current amplitude and phase value information, its sample unit are direct and three-phase high-voltage voltage mutual inductor secondary side line, the union end of high-tension current inductor primary side and secondary side line.To the moving connector of interface circuit, constitute the wire transmission extension set of this device, mechanism's union end is gone in the output that its moving connector is this wire transmission extension set, and it decides the input circuit that connector constitutes this equipment voltage and current information, current amplitude and phase value information, reaches their integrated information.C. described this equipment is or/and the split of the voltage and current information that at least one wireless transmission of band detects or divide machine mechanism or/and the split of current amplitude that at least one wireless transmission of band detects and phase value information or divide machine mechanism, or/and the comprehensive split that comprises voltage and current information, current amplitude and phase value information that at least one wireless transmission of band detects or divide machine mechanism.The voltage and current information institution that its extension set and this equipment room wireless transmission/reception detects, current amplitude and phase value information institution that its extension set and this equipment room wireless transmission/reception detects, the voltage and current information that its extension set and this equipment room wireless transmission/reception detects, the detailed structure of the comprehensive organ of current amplitude and phase value information is: voltage and current information, current amplitude and phase value information, and the sample circuit of their integrated information, mould/number conversion the circuit of controller control, transtation mission circuit and transmitting antenna function thereof connect forms the voltage and current information that wireless transmission detects, current amplitude and phase value information, and the extension set of their integrated information.The sample unit of its sample circuit can be arranged on tested high voltage potential transformer secondary side voltage and current information, high-tension current inductor primary side and secondary side current amplitude and phase value intelligence sample position, and its sample unit is the union end of direct and three-phase high-voltage voltage mutual inductor secondary side line, high-tension current inductor primary side and secondary side line.This equipment also must corresponding be provided with voltage and current information, current amplitude and phase value information that wireless receiving detects, and their mechanism of integrated information.Voltage and current information, current amplitude and the phase value information that described wireless receiving detects, and their mechanism of integrated information be arranged on this equipment body part, by voltage and current information, current amplitude and phase value information, and their receiving circuit of integrated information and receiving antenna, amplifying circuit, input circuit function connect and form, its input circuit promptly be this equipment voltage and current information, current amplitude and phase value information, reach the input circuit of their integrated information.D. this equipment or and computing center between wire transmission, or the structure of wireless transmission/reception is: this equipment is or/and at least one computing center is the wire transmission connection, or the structure of the contact of wireless transmission/reception is: the voltage and current information that wire transmission detects between this equipment of i. and the computing center that connects, current amplitude and phase value information, and the concrete structure of the mechanism of their integrated information is: the voltage and current information that described this equipment wire transmission detects, current amplitude and phase value information, and the structure of the mechanism of their integrated information is connected one by one and is formed by digital processing circuit-wire transmission interface circuit (as the RS232 interface circuit)-transmission yarn; Perhaps, the voltage and current information, current amplitude and the phase value information that detect of the wireless transmission between this device of ii. and the computing center that gets in touch/reception, and their concrete structure of mechanism of integrated information be: described this equipment wireless send the voltage and current information, current amplitude and the phase value information that detect, and their structure of mechanism of integrated information connect by digital processing circuit, wireless interaction interface circuit (as ethernet interface circuit) and transmitting antenna function thereof and form; The computing center that gets in touch with this equipment must correspondingly be provided with voltage and current information, current amplitude and the phase value information that wireless receiving detects, the mechanism that reaches their integrated information, described wireless receiving detect voltage and current information, current amplitude and phase value information, and their receiving mechanism of integrated information be arranged on computing center, by voltage and current information, current amplitude and phase value information, and their integrated information receiving antenna, wireless interaction interface circuit function connect and form.Do not get rid of this equipment and have the test side of detecting voltage and current information, current amplitude and phase value information, reaching their integrated information simultaneously, extension set voltage and current information, current amplitude and the phase value information that wire transmission detects, that reach their integrated information, the extension set of integrated information voltage and current information, current amplitude and the phase value information that wireless transmission detects, that reach them is the structure of several (as three kinds each) altogether.Do not get rid of yet this equipment simultaneously also and wired connection of other a plurality of calculation mechanism (as computing center etc.) or/and radio contact.
According to above-described high-voltage electric-energy meter composition error real time on-line monitoring equipment, technical characterstic also has: the detailed structure of described this high-voltage electric energy measurement error real time on-line monitoring equipment has: 1). and described this equipment is or/and at least one of band detects the test side of voltage and current information or/and at least one of band detects the test side of current amplitude and phase value information, or/and have at least one by the comprehensive detection end that they are formed jointly, their detailed structure is: the detection cable and the sample detecting end of described test side have fixing structure.If any fixing build-out and test side of fixing and fixing electrical structure parameter etc., like this detection error that when detecting current amplitude and phase value information, causes of the detection sum of errors that when detecting voltage, current information, causes of this test side be fix with known, can be with its deduction in detection, in metering, become error free or error little of ignoring.2). described this equipment is or/and the split of the voltage and current information that at least one wire transmission of band detects or divide machine mechanism or/and the split of current amplitude that at least one wire transmission of band detects and phase value information or divide machine mechanism, or/and the comprehensive split that comprises voltage and current information, current amplitude and phase value information that at least one wire transmission of band detects or divide machine mechanism.The voltage and current information institution that its extension set and this equipment room wire transmission detect, current amplitude and phase value information institution that its extension set and this equipment room wire transmission detect, the voltage and current information that its extension set and this equipment room wire transmission detect, the detailed structure of the comprehensive organ of current amplitude and phase value information is: the structure of the mechanism of the voltage and current information that the described wire transmission of a. detects is by sample circuit, mould/number conversion the circuit of controller control, photoelectric isolating circuit, differential output circuit, transmission circuit, the difference input circuit, photoelectric isolating circuit, input circuit connects composition one by one.Perhaps, the voltage and current information, current amplitude and the phase value information that detect of the described wire transmission of b., and their structure of mechanism of integrated information connect one by one and form by mould/number conversion circuit, electrical-optical conversion interface circuit, Transmission Fibers, opto-electronic conversion interface circuit, amplifying circuit, the input circuit of sample circuit, controller control.2 described structures of above a, b all have digitized processing mechanism, error free then or error little to can be with ignoring with wire transmission the voltage, current information and the current amplitude that detect and phase value information aggregating to this equipment.Perhaps, the voltage and current information, current amplitude and the phase value information that detect of the described wire transmission of c., and their structure of mechanism of integrated information connect one by one and form by digital sample circuit, digital amplifying circuit (a), electrical-optical conversion interface circuit, Transmission Fibers, opto-electronic conversion interface circuit, digital amplifying circuit (b), digital input circuit.Perhaps, the structure of the mechanism of the voltage and current information of the described wire transmission detection of d. is made of digital output end one wire transmission cable-digital input end.2 described digital transmission structures of above c, d directly error free or error little of being pooled to voltage, current information and the current amplitude and the phase value information that detect on this equipment with wire transmission with ignoring.The electronic circuit spare design that each circuit described in above a, b, c, the d all can be sold with existing public technology contents and public merchant and making is as long as they can finish or realize all can using or adopt of each circuit function.3). described this equipment is or/and the split of the voltage and current information that at least one wireless transmission of band detects or branch machine mechanism, or/and the split of current amplitude that at least one wireless transmission of band detects and phase value information or branch machine mechanism, or/and the voltage and current information that at least one wireless transmission of band detects, the comprehensive split of current amplitude and phase value information or branch machine mechanism, the mechanism of the voltage and current information that its extension set and this equipment room wireless transmission/reception detects, the current amplitude that its extension set and this equipment room wireless transmission/reception detects and the mechanism of phase value information, its extension set and this equipment room wireless transmission/reception detect comprises voltage and current information, the detailed structure of the comprehensive organ of current amplitude and phase value information is: the voltage and current information that the described wireless transmission of a. detects, current amplitude and phase value information, and the structure of the extension set of their integrated information is by sample circuit, mould/number conversion the circuit of controller control, digital signal processing module, wireless data sending communication module and transmitting antenna function thereof connect to be formed; This corresponding equipment must have wireless receiving and detect the mechanism of voltage and current information, current amplitude and phase value information and structure and connected and formed by wireless data sending communication module and receiving antenna thereof, digital signal processing module, input circuit function.Perhaps, the voltage and current information, current amplitude and the phase value information that detect of the described wireless transmission of b., and their structure of extension set of integrated information connect by mould/number conversion circuit, digital modulation circuit, frequency conversion transtation mission circuit and the transmitting antenna function thereof of sample circuit, controller control and form; This corresponding equipment must have voltage and current information, current amplitude and phase value information that wireless receiving detects, and their structure of extension set of integrated information connect and form by reception and frequency changer circuit and receiving antenna thereof, digital demodulating circuit, input circuit function.2 described structures of above a, b all have digitized processing mechanism, error free then or error little to can be with ignoring with wireless transmission the voltage and current information, current amplitude and the phase value information aggregating that detect to this equipment.Perhaps, the voltage and current information, current amplitude and the phase value information that detect of the described wireless transmission of c., and their structure of extension set of integrated information connect by digital sample circuit, digital amplifying circuit and transmitting antenna function thereof and form; This corresponding equipment must have voltage and current information, current amplitude and phase value information that wireless receiving detects, and their structure of extension set of integrated information connect and form by digital received amplifying circuit and receiving antenna thereof, digital input circuit function.The described digitizing structure of c point directly error free or error little of being pooled to the voltage and current information, current amplitude and the phase value information that detect on this equipment with wireless transmission/receive mode with ignoring.The electronic circuit spare design that each circuit described in above a, b, the c all can be sold with existing public technology contents and public merchant and making is as long as they can finish or realize all can using or adopt of each circuit function.
High-voltage electric-energy meter composition error real time on-line monitoring equipment advantage of the present utility model is a lot: the advantage of this high-voltage electric-energy meter composition error real time on-line monitoring equipment is: 1. this equipment is the monitoring of implementing under high pressure (more than 10KV), forceful electric power situation, it makes this sensing range be extended to high-voltage electric energy measurement or detection technique field, the electric energy metrical of high pressure, forceful electric power beyond doubt to the electric energy metrical technology propose comprehensively, more stern challenge, need the high pressure measurement versatility to rise to the level that high pressure, forceful electric power standard and safety etc. require; 2. this equipment is the monitoring that real-time online is implemented under high pressure, forceful electric power situation for a long time, the monitoring under high pressure, forceful electric power situation, implemented of real-time online chronically, can be described as high-voltage electric energy measurement or detection technique the highest requirement and level, also is high-voltage electric energy measurement or detection technique the most difficult requirement and level; 3. this real-time online long term monitoring equipment of under high pressure (more than 10KV), forceful electric power situation, implementing, be high-voltage electric energy measurement or detection technique in the autonomous innovation and the technology leap of high pressure, forceful electric power situation, it has made contribution for the high-voltage electric energy measurement of China or detection level and raising.4. this high-voltage electric-energy meter composition error real time on-line monitoring equipment, also, also contribute for the scientific-technical progress of electric utility for a kind of accurate means and the convenient and swift testing apparatus that can use for a long time again of brand-new detection high-voltage electric-energy meter composition error are provided for the electricity consumption both sides.Be worth promoting the use of in electric system and electric industry detection range.
Four. description of drawings
Figure of description of the present utility model has 15 width of cloth:
Fig. 1 is a high-voltage electric-energy meter composition error real time on-line monitoring device structure synoptic diagram;
Fig. 2 is a meter error of high-voltage mutual inductor real time on-line monitoring apparatus structure synoptic diagram;
Fig. 3 is a high-tension current inductor error in dipping real time on-line monitoring apparatus structure synoptic diagram;
Fig. 4 is the wire transmission mechanism of the error free test side of employing and the meter error of high-voltage mutual inductor real time on-line monitoring device synoptic diagram of structure;
Fig. 5 is for adopting the meter error of high-voltage mutual inductor real time on-line monitoring device synoptic diagram of free from error wire transmission extension set and structure;
Fig. 6 is for adopting the meter error of high-voltage mutual inductor real time on-line monitoring device synoptic diagram of free from error wireless transmission/reception extension set and structure;
Fig. 7 is for adopting the high-tension current inductor error in dipping real time on-line monitoring device synoptic diagram of test side free from error wire transmission mechanism and structure;
Fig. 8 is for adopting the high-tension current inductor error in dipping real time on-line monitoring device synoptic diagram of free from error wire transmission extension set and structure;
Fig. 9 is for adopting the high-tension current inductor error in dipping real time on-line monitoring device synoptic diagram of free from error wireless transmission/reception extension set and structure;
Figure 10 is (the voltage and current metrical information) extension set and structure principle chart of a kind of error free wire transmission high-voltage electric energy measurement information of high-voltage electric-energy meter composition error real time on-line monitoring equipment;
Figure 11 is (current amplitude and phase value information) extension set and structure principle chart of a kind of error free wire transmission high-voltage electric energy measurement information of high-voltage electric-energy meter composition error real time on-line monitoring equipment;
Figure 12 is the extension set and the structure principle chart of a kind of error free wireless transmission of high-voltage electric-energy meter composition error real time on-line monitoring equipment/reception high-voltage electric energy measurement information;
Figure 13 is the extension set and the structure principle chart of the another kind of error free wireless transmission of high-voltage electric-energy meter composition error real time on-line monitoring equipment/reception high-voltage electric energy measurement information;
Figure 14 is the mechanism and the structure principle chart of high-voltage electric-energy meter composition error real time on-line monitoring equipment and computing machine or computing center's wire transmission high-voltage electric energy measurement information;
Figure 15 is the mechanism and the structure principle chart of high-voltage electric-energy meter composition error real time on-line monitoring equipment and computing machine or computing center's wireless transmission/reception high-voltage electric energy measurement information.
Adopted unified label in each figure, promptly same object is used same label in each figure.In each figure: 1. high voltage potential transformer; 2. high-tension current inductor; 3. voltage three-phase secondary line input end; 4. electric current three-phase secondary line input end; 5. the high-tension current inductor information of wireless transmission monitoring; 6. the high-tension current inductor information of wire transmission monitoring; 7. three-phase high-voltage line of electric force; 8. high-tension current inductor monitoring unit; 9. high-tension current inductor is monitored main frame; Signal outdoor on-the-spot with separatrix, user pulpit; 11. electric current three-phase secondary cable; 12. electric current three-phase secondary line user electric energy meter input end sampling end; 13. voltage three-phase secondary cable; 14. voltage three-phase secondary line user electric energy meter input end sampling end; 15. user's electric energy meter; 16. measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real time on-line monitoring main frame; 17. the detection accessory of sampling and wire transmission or wireless transmission information of voltage (test side is or/and extension set); 18. voltage three-phase secondary line section start end sampling end; 19. illustrate wired transmission voltage measurement information; 20. signal wireless transmission voltage measurement information; 21. high voltage potential transformer monitoring unit; 22. high voltage potential transformer monitoring main frame; 23. signal wire transmission voltage and current metrical information; 24. signal wireless transmission voltage and current metrical information; 25. computing machine or computing center; 26. wire transmission voltage and current metrical information between indication device and calculation mechanism; 27. receive the voltage and current metrical information for wireless between indication device and calculation mechanism; 28. signal sampled voltage and current information; 29. controller, microprocessor or single-chip microcomputer etc. in this way; 30. mould/number conversion circuit; 31. photoelectric isolating circuit (going out); 32. difference amplification output circuit; 33. difference is amplified input circuit; 34. photoelectric isolating circuit (going into); 35. signal sample rate current information; 36. electrical-optical conversion interface circuit; 37. Transmission Fibers; 38. opto-electronic conversion interface circuit; 39. amplification input circuit; 40. signal sample detecting information; 41. digital signal processing module (a); 42. interface circuit (a); 43. wireless data sending communication module (a); 44. wireless data sending communication module (b); 45. interface circuit (b); 46. digital signal processing module (b); 47. digital modulation circuit; 48. frequency changer circuit; 49. amplification transtation mission circuit; 50. receive and frequency changer circuit; 51. digital demodulating circuit; 52. signal sample detecting information input; 53. digital processing circuit; 54.RS232 interface circuit; 55. wireless ethernet interface.
Five. specific embodiments
Non-limiting examples of the present utility model is as follows:
Embodiment one. high-voltage electric-energy meter composition error real time on-line monitoring equipment
This routine high-voltage electric-energy meter composition error real time on-line monitoring equipment is real-time online, the equipment of long term monitoring high-voltage electric-energy meter composition error, the main part of this equipment is shown in Fig. 1~Fig. 3 associating, it includes: the mechanism and the structure of described precision metering or detection voltage and current information, i.e. meter error of high-voltage mutual inductor real time on-line monitoring part (1 among Fig. 2 as shown in Figure 2,3,21,22 etc.), include the mechanism and the structure of special-purpose metering or detection current amplitude and phase value information, i.e. high-tension current inductor error in dipping real time on-line monitoring part (2 among Fig. 3 as shown in Figure 3,4,7~9 etc.), also can include the mechanism and the structure of electric energy metrical or detection, i.e. error real time on-line monitoring part (1~4 among Fig. 1 of being caused of high voltage potential transformer secondary circuit voltage drop as shown in fig. 1,11~14,16~18 etc.), even the error in dipping real time on-line monitoring of electric energy meter (as 15 among Fig. 1) part (16 among Fig. 1 etc.), more than these meterings or test section should have all available existing public technology contents of which mechanism and structure to solve and design, no longer stating more.The precision of described employing, the special-purpose metering or the implication of detecting instrument are: one, and under high pressure (more than 10KV), forceful electric power (big electric current) situation, meter error of high-voltage mutual inductor is implemented monitoring, the high-tension current inductor error in dipping is implemented monitoring etc.; They are two years old, under high pressure, forceful electric power situation, meter error of high-voltage mutual inductor and high-tension current inductor error in dipping are implemented the long-term monitoring of real-time online, monitor the current amplitude and the phase information of voltage and current information, monitoring high-tension current inductor primary side and the secondary side of its high voltage potential transformer secondary side.In other words described employing precision, special-purpose metering or detecting instrument must have performances such as high pressure resistant, anti-forceful electric power (big electric current), real-time online use for a long time, measure of precision is satisfactory, safe operation meets the requirements, and could monitor meter error of high-voltage mutual inductor and high-tension current inductor error in dipping.The characteristics of this equipment are: 1). described this equipment must comprise or have the detection accessory that at least one real-time, error free or error can detect voltage and current information with ignoring, the detection accessory that at least one real-time, error free or error can detect current amplitude and phase value information must be comprised or have with ignoring, the detection accessory that at least one real-time, error free or error can detect electric energy metrical information must be comprised or have with ignoring; Perhaps this equipment must comprise or have at least one or (as two) can be in real time more than one, error free or error can detect voltage and current information with ignoring, detect comprehensive detection annex current amplitude and phase value information and the common composition of detection accessory detection electric energy metrical information, described these detection accessory be the test side or/and extension set: this equipment of a. has at least one metering or detects voltage and current information, have at least one metering or detect current amplitude and phase value information, have test side and cable thereof that at least one detects electric energy metrical information, have at least one or (as two etc.) is made of jointly them more than one comprehensive detection annex and cable thereof, at least one of various kinds totally four detection accessory (test side) are 8 among Fig. 1~Fig. 3 as them, 17,21 etc.To in metering, make these test sides become error free or error little of can ignoring, this just requires test side and cable thereof that fixing structure and fixing known detection error amount must be arranged and with its deduction, become error free or error little of ignoring.B. this equipment has at least one wire transmission or/and wireless transmission measures or detect the mechanism of voltage and current information, have at least one wire transmission or/and wireless transmission measures or detect the mechanism of current amplitude and phase value information, have at least one wire transmission or/and the mechanism of the electric energy metrical information that wireless transmission detected, the mechanism that has at least one comprehensive detection of forming jointly by them, at least one of the various kinds mechanism of the detection of totally four wire transmission, at least one of the various kinds mechanism of the detection of totally four wireless transmission/receptions is 8 among Fig. 1~Fig. 3 as them, 17,21 etc.These mechanisms form by electronic mechanism, these mechanisms are and the main part of this equipment having that cable wire connects or get in touch by wireless transmission/reception by transmission, these mechanisms are arranged on the branch body portion outside this equipment body part, constitute the extension set of this equipment, these extension sets are made up of housing and interior electronic mechanism thereof.Described electronic mechanism is made of assemblings such as multiple electronic component, device, assembly, parts, integrated circuit block, electronic circuit and software programs in this way.One of the described various kinds at least mechanism of the detection of totally four wire transmission is detection extension sets of wire transmission, and the structure of the detection extension set of these wire transmission is: voltage and current information, current amplitude and phase value information, and their the mould/number conversion circuit of sample circuit-controller control of integrated information--transmission circuit and transmission yarn--interface circuit and connector--input circuit function connects to be formed.The sample unit of its sample circuit can be arranged on tested high voltage potential transformer secondary side voltage, current information and high-tension current inductor primary side and secondary side current amplitude and phase value intelligence sample position, its sample unit in this way directly and union end three-phase high-voltage voltage mutual inductor secondary side line, high-tension current inductor primary side and secondary side line, sampling precision is higher, and perhaps current sample also can adopt split core type current transformer etc. to carry out.To the moving connector of interface circuit, constitute the wire transmission extension set of this device, mechanism's union end is gone in the output that its moving connector is this wire transmission extension set, and it decides the input circuit that connector constitutes this device voltage and current information, current amplitude and phase value information, reaches their integrated information.The detailed structure of the detection extension set of these wire transmission is connected one by one with input circuit 39 and is formed by mould/number conversion circuit 30, electrical-optical conversion interface circuit 36, Transmission Fibers 37, opto-electronic conversion interface circuit 38, the amplifying circuit of sample circuit, controller 29 controls.The described structure of this example all has digitized processing mechanism, and error free then or error little of being pooled to the voltage, current information and the current amplitude that detect and phase value information etc. on this equipment with wire transmission with ignoring.One of the described various kinds at least testing agency of totally four wireless transmission/receptions is detection extension sets of wireless transmission/reception, and its extension set and this equipment room wireless transmission/reception detects current amplitude and phase value information institution, its extension set and this equipment room wireless transmission/reception detects the voltage and current information institution, its extension set and this equipment room wireless transmission/reception detects voltage and current information, the detailed structure of current amplitude and phase value informix mechanism is: voltage and current information, current amplitude and phase value information, and the sample circuit of their integrated information, mould/number conversion the circuit of controller control, the voltage and current information that transtation mission circuit and transmitting antenna function connection composition wireless transmission thereof detect, current amplitude and phase value information, and the extension set of their integrated information.This equipment also must corresponding be provided with the voltage and current information that wireless receiving detects, current amplitude and phase value information, and the mechanism of their integrated information, described wireless receiving detects voltage and current information, current amplitude and phase value information, and the mechanism of their integrated information is arranged on this equipment body part, by voltage and current information, current amplitude and phase value information, and the receiving circuit and the receiving antenna thereof of their integrated information, amplifying circuit, the input circuit function connects to be formed, and its input circuit promptly is the voltage and current information of this equipment, current amplitude and phase value information, and the input circuit of their integrated information.Wireless transmission detect voltage and current information, current amplitude and phase value information, and their detailed structure of extension set of integrated information connect by mould/number conversion circuit 30, digital signal processing module 41, wireless data sending communication module 43 and the transmitting antenna function thereof of sample circuit, controller 29 controls and form; This corresponding equipment must have wireless receiving and detect the mechanism of voltage and current information, current amplitude and phase value information and structure and connected and formed by wireless data sending communication module 44 and receiving antenna thereof, digital signal processing module, input circuit function.The described structure of this example all has digitized processing mechanism, error free then or error little to can be with ignoring with wireless transmission the voltage, current information and the current amplitude that detect and phase value information aggregating to this equipment.3). this equipment can be provided with calculation mechanism and structure, and this calculation mechanism includes micro computer or microprocessor and software program and auxiliary circuit, and this calculation mechanism and structure thereof can and realize with existing public technology contents design, no longer stating more.A. this calculation of equipments mechanism can calculate the voltage and current information of sampling or detection and draw by mathematical formulae the meter error of high-voltage mutual inductor value of real time on-line monitoring.Wherein mathematical formulae is:
Figure Y20072012813400221
Figure Y20072012813400222
In the formula: f U, δ URatio and the angular difference of-tested high voltage potential transformer under the actual motion load;
f 0, δ 0-unloaded ratio and the unloaded angular difference measured in advance;
f H, δ HRatio and angular difference under-the rated load measured in advance;
I X-actual motion load is the secondary current of high voltage potential transformer down;
I HSecondary current under the-rated load measured in advance;
Figure Y20072012813400223
The angle of impedance of-actual motion load, i.e. phase angle between high voltage potential transformer secondary voltage and secondary current;
Figure Y20072012813400224
Angle of impedance under the-rated load measured in advance;
(%)-result of calculation is percentage;
(')-result of calculation unit is for dividing.B. each error that will monitor of this equipment available computers structure is passed through the mathematical formulae addition in real time, to calculate the composition error value of high-voltage electric-energy meter.For three-phase three wire system, described mathematical formulae is:
ϵ = 1 P ′ 1 + P ′ 3 × { P ′ 1 ( ϵ W 1 + f Uab + f ab + f Ia ) + P ′ 3 ( ϵ W 3 + f Ucb + f cb + f Ic )
Figure Y20072012813400231
In the formula: ε--the composition error of high-voltage electric-energy meter;
ε W1, ε W3The relative error of-the first phase, third phase power ammeter (%);
P ' 1, P ' 3AC power (electric energy) value that-the first phase, third phase power ammeter record;
f Uab, δ Uab-AB phase voltage mutual inductor (or voltage transformer secondary line voltage
Figure Y20072012813400233
) ratio (%) and angular difference (');
f Ucb, δ Ucb-CB phase voltage mutual inductor (or voltage transformer secondary line voltage
Figure Y20072012813400234
) ratio (%) and angular difference (');
f Ia, δ IaRatio of-A phase current mutual inductor (%) and angular difference (');
f Ic, δ IcRatio of-C phase current mutual inductor (%) and angular difference (');
f Ab, δ AbThe ratio (%) and the angular difference (') of-AB phase voltage secondary circuit voltage drop;
f Cb, δ CbThe ratio (%) and the angular difference (') of-CB phase voltage secondary circuit voltage drop;
(%)-and ratio: percentage;
(')-angular difference: unit is for dividing;
Figure Y20072012813400235
-be respectively
Figure Y20072012813400236
With
Figure Y20072012813400237
Between,
Figure Y20072012813400238
With
Figure Y20072012813400239
Between phase angle;
Figure Y200720128134002310
The AB of-electric energy meter place phase voltage, the CB of electric energy meter place phase voltage;
Figure Y200720128134002311
-secondary current phasor.For three-phase four wire system, described mathematical formulae is:
ϵ = 1 P ′ 1 + P ′ 2 + p ′ 3 × { P ′ 1 × ( ϵ W 1 + f Ua 0 + f a 0 + f Ia ) + P ′ 2 × ( ϵ W 2 + f Ub 0 + f b 0 + f Ib )
Figure Y200720128134002313
Figure Y200720128134002314
Figure Y200720128134002315
In the formula:: the composition error of ε--high-voltage electric-energy meter;
ε W1, ε W2, ε W3The error (%) of-the first phase, second phase, third phase power ammeter;
f Ia, δ Ia, f Ib, δ Ib, f Ic, δ IcThe ratio (%) and the angular difference (') of-A phase, B phase, C phase current mutual inductor;
f Ua0, δ Ua0, f Ub0, δ Ub0, f Uc0, δ Uc0The ratio (%) and the angular difference (') of-A phase, B phase, C phase voltage mutual inductor;
f A0, δ A0, f B0, δ B0, f C0, δ C0-be respectively the ratio (%) and the angular difference (') of A, B, C phase voltage secondary circuit voltage drop;
P ' 1, P ' 2, P ' 3-AC power energy value that each phase power ammeter records;
Figure Y20072012813400241
-be respectively
Figure Y20072012813400242
With
Figure Y20072012813400243
Between, With
Figure Y20072012813400245
Between,
Figure Y20072012813400246
With
Figure Y20072012813400247
Between phase angle;
The A of-electric energy meter place phase voltage, the B of electric energy meter place phase voltage, the C of electric energy meter place phase voltage;
Figure Y20072012813400249
-secondary current phasor.The real-time online of electric energy meter error detects: use known electric energy metrical instrument real-time online that electric energy meter error is measured or detects; The ratio of voltage circuit secondary voltage drop and angular difference real-time online detect: use the ratio of known secondary voltage drop and angular difference gauging instrument real-time online that the ratio and the angular difference of secondary voltage drop are measured or detect.Above-mentioned metering or detect its operation can be referring to the structure of this Figure of description 1.
Embodiment two. high-voltage electric-energy meter composition error real time on-line monitoring equipment
This routine high-voltage electric-energy meter composition error real time on-line monitoring equipment is real-time online, the equipment of long term monitoring high-voltage electric-energy meter composition error, the main part of this equipment such as Fig. 1~Fig. 3, Fig. 4, shown in Fig. 7 associating, it includes: the mechanism and the structure of precision metering or detection voltage and current information, i.e. meter error of high-voltage mutual inductor real time on-line monitoring part as shown in Figure 2, the mechanism and the structure of special-purpose metering or detection current amplitude and phase value information, i.e. high-tension current inductor error in dipping real time on-line monitoring part as shown in Figure 3, mechanism and structure that electric energy metrical or detection also can be arranged, i.e. high voltage potential transformer secondary circuit voltage drop error in dipping real time on-line monitoring part as shown in fig. 1, even the error in dipping real time on-line monitoring part of electric energy meter (as 15 among Fig. 1), more than these meterings or test section should have all available existing public technology contents of which mechanism and structure to solve and design, no longer stating more.The precision of described employing, the special-purpose metering or the implication of detecting instrument are: one, and under high pressure (more than 10KV), forceful electric power (big electric current) situation, meter error of high-voltage mutual inductor is implemented monitoring, the high-tension current inductor error in dipping is implemented monitoring; Its two, under high pressure, forceful electric power situation, meter error of high-voltage mutual inductor and high-tension current inductor error in dipping are implemented the long-term monitoring of real-time online.In other words described employing precision, special-purpose metering or detecting instrument must have performances such as high pressure resistant, anti-forceful electric power (big electric current), real-time online use for a long time, measure of precision is satisfactory, safe operation meets the requirements, and could monitor meter error of high-voltage mutual inductor and high-tension current inductor error in dipping.The characteristics of this equipment are: described this equipment must comprise or have the detection accessory that at least one real-time, error free or error can detect voltage and current information with ignoring, the detection accessory that at least one real-time, error free or error can detect current amplitude and phase value information must be comprised or have with ignoring, the detection accessory that at least one real-time, error free or error can detect electric energy metrical information must be comprised or have with ignoring; This equipment must comprise or have at least one or (as two) can be real-time, error free or error can detect voltage and current information, that detect current amplitude and phase value information with ignoring and the detection accessory that the detects electric energy metrical information comprehensive detection annex of composition jointly more than one, and described these detection accessory all are test sides.This equipment has at least one metering or detects voltage and current information, that have at least one metering or detection current amplitude and phase value information, as to have at least one detection electric energy metrical information test side and cable thereof, have at least one or (as two etc.) is made of jointly them more than one comprehensive detection end and cable thereof, at least one of various kinds totally four detection accessory (test side) are 8 among Fig. 1~Fig. 3,17,21 etc. as them.To in metering, make these test sides become error free or error little of can ignoring, this just requires test side and cable thereof that fixing structure and fixing known detection error amount must be arranged and with its deduction, become error free or error little of ignoring.About the real-time on-line detecting method of electric energy meter error, the ratio of voltage circuit secondary voltage drop and angular difference real-time on-line detecting method use known metering or detection method, precedingly narrate.What all the other were not stated is same as described in the embodiment one entirely, no longer repeats.
Embodiment three. high-voltage electric-energy meter composition error real time on-line monitoring equipment
This routine high-voltage electric-energy meter composition error real time on-line monitoring equipment is real-time online, the equipment of long term monitoring high-voltage electric-energy meter composition error, the main part of this equipment such as Fig. 1~Fig. 3, Fig. 5, shown in Fig. 8 associating, it includes: the mechanism and the structure of precision metering or detection voltage and current information, i.e. meter error of high-voltage mutual inductor real time on-line monitoring part as shown in Figure 2, the mechanism and the structure of special-purpose metering or detection current amplitude and phase value information, i.e. high-tension current inductor error in dipping real time on-line monitoring part as shown in Figure 3, mechanism and structure that electric energy metrical or detection also can be arranged, i.e. high voltage potential transformer secondary circuit voltage drop error in dipping real time on-line monitoring part as shown in fig. 1, even the error in dipping real time on-line monitoring part of electric energy meter (as 15 among Fig. 1), more than these monitoring parts should have all available existing public technology contents of which mechanism and structure to solve and design, no longer stating more.The precision of described employing, the special-purpose metering or the implication of detecting instrument are: one, and under high pressure (more than 10KV), forceful electric power (big electric current) situation, meter error of high-voltage mutual inductor is implemented monitoring, the high-tension current inductor error in dipping is implemented monitoring.Its two, under high pressure, forceful electric power situation, meter error of high-voltage mutual inductor and high-tension current inductor error in dipping are implemented the long-term monitoring of real-time online.In other words described employing precision, special-purpose metering or detecting instrument must have performances such as high pressure resistant, anti-forceful electric power (big electric current), real-time online use for a long time, measure of precision is satisfactory, safe operation meets the requirements, and could monitor meter error of high-voltage mutual inductor and high-tension current inductor error in dipping.The characteristics of this equipment are: 1). described this equipment must comprise or have the detection accessory that at least one real-time, error free or error can detect voltage and current information with ignoring, the detection accessory that at least one real-time, error free or error can detect current amplitude and phase value information must be comprised or have with ignoring, the detection accessory that at least one real-time, error free or error can detect electric energy metrical information must be comprised or have with ignoring; Perhaps this equipment must comprise or have at least one or (as two) can be in real time more than one, error free or error can detect voltage and current information with ignoring, detect comprehensive detection annex current amplitude and phase value information and the common composition of detection accessory detection electric energy metrical information, described these detection accessory are: the mechanism of the voltage and current information that at least one wire transmission that this equipment has is measured or detected, the mechanism of current amplitude that at least one wire transmission that has is measured or detected and phase value information, the mechanism of the electric energy metrical information that at least one wire transmission detected that has, the mechanism that has at least one comprehensive detection of forming jointly by them, these mechanisms form by electronic mechanism, these mechanisms connect by the cable wire of transmitting that has with the main part of this equipment, these mechanisms are arranged on the branch body portion outside this equipment body part, constitute the extension set of this equipment, these extension sets are made up of housing and interior electronic mechanism thereof.The current amplitude that its extension set and this equipment room wire transmission detect and the mechanism of phase value information, the mechanism of the voltage and current information that its extension set and this equipment room wire transmission detect, its extension set and this equipment room wire transmission detect voltage and current information, the concrete structure of the comprehensive organ of current amplitude and phase value information is: voltage and current information, current amplitude and phase value information, and the mould/number conversion circuit of the sample circuit of their integrated information-controller control--transmission circuit and transmission yarn--interface circuit and connector--input circuit function connection composition.To the moving connector of interface circuit, constitute the wire transmission extension set of this device, mechanism's union end is gone in the output that its moving connector is this wire transmission extension set, and it decides the input circuit that connector constitutes this device voltage and current information, current amplitude and phase value information, reaches their integrated information.Its extension set and this equipment room wire transmission detect the mechanism of current amplitude and phase value information, the mechanism of the voltage and current information that its extension set and this equipment room wire transmission detect, the structure of the mechanism of the voltage and current information that its extension set and this equipment room wire transmission detect is by sample circuit, mould/number conversion the circuit 30 of controller 29 controls, photoelectric isolating circuit (going out) 31, difference amplification output circuit 32, transmission circuit, difference is amplified input circuit 33, photoelectric isolating circuit (going into) 34, input circuit connects composition one by one.The structure of the comprehensive organ of the information of voltage and current information, current amplitude and phase value that the structure of the current amplitude that its extension set and this equipment room wire transmission detect and the mechanism of phase value information, its extension set and this equipment room wire transmission detect by mould/number conversion circuit 30, electrical-optical conversion interface circuit 36, Transmission Fibers 37, the opto-electronic conversion interface circuit 38 of sample circuit, controller 29 controls, amplify and import 39 and connect composition one by one.All the other are not stated is same as among the embodiment one entirely, described in the embodiment two, no longer repeat.
Embodiment four. high-voltage electric-energy meter composition error real time on-line monitoring equipment
This routine high-voltage electric-energy meter composition error real time on-line monitoring equipment is real-time online, the equipment of long term monitoring high-voltage electric-energy meter composition error, the main part of this equipment such as Fig. 1~Fig. 3, Fig. 6, shown in Fig. 9 associating, it includes: meter error of high-voltage mutual inductor real time on-line monitoring part as shown in Figure 2, high-tension current inductor error in dipping real time on-line monitoring part as shown in Figure 3, high voltage potential transformer secondary circuit voltage drop error in dipping real time on-line monitoring part as shown in fig. 1 also can be arranged, even the error in dipping real time on-line monitoring part of electric energy meter (as 15 among Fig. 1), more than these meterings or monitoring part should have all available existing public technology contents of which mechanism and structure to solve and design, no longer stating more.The precision of described employing, the special-purpose metering or the implication of detecting instrument are: one, and under high pressure (more than 10KV), forceful electric power (big electric current) situation, meter error of high-voltage mutual inductor is implemented monitoring, the high-tension current inductor error in dipping is implemented monitoring.Its two, under high pressure, forceful electric power situation, meter error of high-voltage mutual inductor and high-tension current inductor error in dipping are implemented the long-term monitoring of real-time online.In other words described employing precision, special-purpose metering or detecting instrument must have performances such as high pressure resistant, anti-forceful electric power (big electric current), real-time online use for a long time, measure of precision is satisfactory, safe operation meets the requirements, and could monitor meter error of high-voltage mutual inductor and high-tension current inductor error in dipping.The characteristics of this equipment are: described this equipment must comprise or have the detection accessory that at least one real-time, error free or error can detect voltage and current information with ignoring, the detection accessory that at least one real-time, error free or error can detect current amplitude and phase value information must be comprised or have with ignoring, the detection accessory that at least one real-time, error free or error can detect electric energy metrical information must be comprised or have with ignoring; This equipment must comprise or have at least one or (as two) can be in real time more than one, error free or error can detect voltage and current information with ignoring, detect comprehensive detection annex current amplitude and phase value information and the common composition of detection accessory detection electric energy metrical information, described these detection accessory are mechanisms of the voltage and current information that at least one wireless transmission measured or detected of this equipment band, the current amplitude that at least one wireless transmission measured or detected of band and the mechanism of phase value information, the mechanism of the electric energy metrical information that at least one wireless transmission detected of band, the mechanism of the comprehensive detection that at least one of band is made of jointly them, these mechanisms form by electronic mechanism, these mechanisms get in touch by wireless transmission/reception with the main part of this equipment, these mechanisms are arranged on the branch body portion outside this equipment body part, constitute the extension set of this equipment, these extension sets are made up of housing and interior electronic mechanism thereof.The split of the voltage and current information that at least one wireless transmission of described this equipment band detects or branch machine mechanism, the current amplitude that at least one wireless transmission of band detects and the split of phase value information or branch machine mechanism, the voltage and current information that at least one wireless transmission of band detects, the comprehensive split of current amplitude and phase value information or branch machine mechanism, its extension set and this equipment room wireless transmission/reception detects the mechanism of voltage and current information, the current amplitude that its extension set and this equipment room wireless transmission/reception detects and the mechanism of phase value information, the voltage and current information that its extension set and this equipment room wireless transmission/reception detects, the detailed structure of the comprehensive organ of current amplitude and phase value information is: described wireless transmission detects voltage and current information, current amplitude and phase value information, and the structure of the extension set of their integrated information is by sample circuit, mould/number conversion the circuit 30 of controller 29 controls, digital modulation circuit 47, frequency conversion transtation mission circuit 48 and transmitting antenna function thereof connect to be formed; This corresponding equipment must have voltage and current information, current amplitude and phase value information that wireless receiving detects, and their mechanism of integrated information and structure connect and form by receiving with frequency changer circuit 50 and receiving antenna thereof, digital demodulating circuit 51, input circuit function.All the other are not stated is same as among the embodiment one entirely~described in the embodiment three, no longer repeat.
Embodiment five. high-voltage electric-energy meter composition error real time on-line monitoring equipment
This routine high-voltage electric-energy meter composition error real time on-line monitoring equipment is real-time online, the equipment of long term monitoring high-voltage electric-energy meter composition error, the main part of this equipment such as Fig. 1~Fig. 4, Fig. 6, Fig. 7, shown in Fig. 9 associating, it includes: the mechanism and the structure of precision metering or detection voltage and current information, the mechanism and the structure of special-purpose metering or detection current amplitude and phase value information, mechanism and structure that electric energy metrical or detection also can be arranged, even the mechanism and the structure of the error in dipping real time on-line monitoring of electric energy meter (as 15 among Fig. 1), more than these meterings or testing agency and structure should have which all available existing public technology contents to solve and design, no longer stating more.The precision of described employing, the special-purpose metering or the implication of detecting instrument are: one, and under high pressure (more than 10KV), forceful electric power (big electric current) situation, meter error of high-voltage mutual inductor is implemented monitoring, the high-tension current inductor error in dipping is implemented monitoring.Its two, under high pressure, forceful electric power situation, meter error of high-voltage mutual inductor and high-tension current inductor error in dipping are implemented the long-term monitoring of real-time online.In other words described employing precision, special-purpose metering or detecting instrument must have performances such as high pressure resistant, anti-forceful electric power (big electric current), real-time online use for a long time, measure of precision is satisfactory, safe operation meets the requirements, and could monitor meter error of high-voltage mutual inductor and high-tension current inductor error in dipping.The characteristics of this equipment are: described this equipment must comprise or have the detection accessory that at least one real-time, error free or error can detect voltage and current information with ignoring, the detection accessory that at least one real-time, error free or error can detect current amplitude and phase value information must be comprised or have with ignoring, the detection accessory that at least one real-time, error free or error can detect electric energy metrical information must be comprised or have with ignoring.This equipment must comprise or have at least one or more than one (as two) can be real-time, error free or error can detect voltage and current information with ignoring, detect detection accessory current amplitude and phase value information and that the detect electric energy metrical information comprehensive detection annex of composition jointly, described these detection accessory are that the test side is or/and extension set.1). this equipment has at least one metering or detects voltage and current information, that have at least one metering or detection current amplitude and phase value information, as to have at least one detection electric energy metrical information test side and cable thereof, has comprehensive detection end and cable thereof that at least one is made of jointly them.Promptly can have one of four sample various kinds totally four test sides and cable thereof.The detection cable and the sample detecting end of described test side have fixing structure.If any fixing build-out and test side of fixing and fixing electrical structure parameter etc., like this detection error that when detecting current amplitude and phase value information, causes of the detection sum of errors that when detecting voltage, current information, causes of this test side be fix with known, can be with its deduction in detection, in metering, become error free or error little of ignoring.2). this equipment can have the mechanism that voltage and current information was measured or detected at least one wire transmission, have at least one wire transmission and measure or detect the mechanism of current amplitude and phase value information, the mechanism that has the electric energy metrical information that at least one wire transmission detects, the mechanism that has at least one comprehensive detection of forming jointly by them, these mechanisms form by electronic mechanism, these mechanisms connect by the cable wire of transmitting that has with the main part of this equipment, these mechanisms are arranged on the branch body portion outside this equipment body part, constitute the extension set of this equipment, these extension sets are made up of housing and interior electronic mechanism thereof.These electronic mechanisms are: the mechanism and the structure of the voltage and current information that wire transmission detects, the current amplitude that wire transmission detects and the mechanism and the structure of phase value information, the voltage and current information that wire transmission detects, the mechanism of the integrated information of current amplitude and phase value information and structure are by the digital sample circuit, numeral amplifying circuit (a), the electrical-optical conversion interface circuit, Transmission Fibers, the opto-electronic conversion interface circuit, numeral amplifying circuit (b), digital input circuit connects composition one by one.All the other are not stated is same as among the embodiment one entirely~described in the embodiment four, no longer repeat.
Embodiment six. high-voltage electric-energy meter composition error real time on-line monitoring equipment
This routine high-voltage electric-energy meter composition error real time on-line monitoring equipment is real-time online, the equipment of long term monitoring high-voltage electric-energy meter composition error, the main part of this equipment such as Fig. 1~Fig. 4, Fig. 6, Fig. 7, shown in Fig. 9 associating, it includes: the mechanism and the structure of precision metering or detection voltage and current information, mechanism and structure that special-purpose metering or detection current amplitude and phase value information are arranged, mechanism and structure that electric energy metrical or detection also can be arranged, even the error in dipping real time on-line monitoring mechanism and the structure of electric energy meter (as 15 among Fig. 1), more than these meterings or testing agency and structure which should be arranged, all available existing public technology contents solves and design, no longer stating more.The precision of described employing, the special-purpose metering or the implication of detecting instrument are: one, and under high pressure (more than 10KV), forceful electric power (big electric current) situation, meter error of high-voltage mutual inductor is implemented monitoring, the high-tension current inductor error in dipping is implemented monitoring.Its two, under high pressure, forceful electric power situation, meter error of high-voltage mutual inductor and high-tension current inductor error in dipping are implemented the long-term monitoring of real-time online.In other words described employing precision, special-purpose metering or detecting instrument must have performances such as high pressure resistant, anti-forceful electric power (big electric current), real-time online use for a long time, measure of precision is satisfactory, safe operation meets the requirements, and could monitor meter error of high-voltage mutual inductor and high-tension current inductor error in dipping.The characteristics of this equipment are: described this equipment must comprise or have the detection accessory that at least one real-time, error free or error can detect voltage and current information with ignoring, the detection accessory that at least one real-time, error free or error can detect current amplitude and phase value information must be comprised or have with ignoring, the detection accessory that at least one real-time, error free or error can detect electric energy metrical information must be comprised or have with ignoring; Perhaps this equipment must comprise or have at least one or (as two) can be in real time more than one, error free or error can detect voltage and current information with ignoring, detect comprehensive detection annex current amplitude and phase value information and the common composition of detection accessory detection electric energy metrical information, described these detection accessory are test side and extension set: 1). this equipment has at least one metering or detects voltage and current information, have at least one metering or detect current amplitude and phase value information, have test side and cable thereof that at least one detects electric energy metrical information, have comprehensive detection end and cable thereof that at least one is made of jointly them.Promptly can have one of four sample various kinds totally four test sides and cable thereof.The detection cable and the sample detecting end of described test side have fixing structure.If any fixing build-out and test side of fixing and fixing electrical structure parameter etc., like this detection error that when detecting current amplitude and phase value information, causes of the detection sum of errors that when detecting voltage and current information, causes of this test side be fix with known, can be with its deduction in detection, in metering, become error free or error little of ignoring.2). at least one wireless transmission of this equipment band measures or detects the mechanism of voltage and current information, at least one wireless transmission of band measures or detects the mechanism of current amplitude and phase value information, the mechanism of the electric energy metrical information that at least one wireless transmission detected of band, the mechanism of the comprehensive detection that at least one of band is made of jointly them, these mechanisms form by electronic mechanism, these mechanisms get in touch by wireless transmission/reception with the main part of this equipment, these mechanisms are arranged on the branch body portion outside this equipment body part, constitute the extension set of this equipment, these extension sets are made up of housing and interior electronic mechanism thereof.The current amplitude that its extension set and this equipment room wireless transmission/reception detects and the mechanism of phase value information, the mechanism of the voltage and current information that its extension set and this equipment room wireless transmission/reception detects, the voltage and current information that its extension set and this equipment room wireless transmission/reception detects, the detailed structure of the comprehensive organ of current amplitude and phase value information is: voltage and current information, current amplitude and phase value information, and the sample circuit of their integrated information, mould/number conversion the circuit of controller control, transtation mission circuit and transmitting antenna function thereof connect forms the voltage and current information that wireless transmission detects, current amplitude and phase value information, and the extension set of their integrated information.The sample unit of its sample circuit can be arranged on tested high voltage potential transformer secondary side voltage and current information, high-tension current inductor primary side and secondary side current amplitude and phase value intelligence sample position.This equipment also must corresponding be provided with the voltage and current information that wireless receiving detects, current amplitude and phase value information, and the mechanism of their integrated information, the voltage and current information that described wireless receiving detects, current amplitude and phase value information, and the mechanism of their integrated information is arranged on this equipment body part, by voltage and current information, current amplitude and phase value information, and the receiving circuit and the receiving antenna thereof of their integrated information, amplifying circuit, the input circuit function connects to be formed, and its input circuit promptly is the voltage and current information of this equipment, current amplitude and phase value information, and the input circuit of their integrated information.Voltage and current information, current amplitude and the phase value information that described wireless transmission detects, and their detailed structure of extension set of integrated information connect by digital sample circuit, digital amplifying circuit and transmitting antenna function thereof and form.This corresponding equipment must have the mechanism of voltage and current information, current amplitude and phase value information that wireless receiving detects and structure and be connected and formed by digital received amplifying circuit and receiving antenna thereof, digital input circuit function.The described digitizing structure of this example directly error free or error little of being pooled to the voltage and current information, current amplitude and the phase value information that detect on this equipment with wireless transmission/receive mode with ignoring.The electronic circuit spare design that above-described each circuit all can be sold with existing public technology contents and public merchant and making is as long as they can finish or realize all can using or adopt of each circuit function.All the other are not stated is same as among the embodiment one entirely~described in the embodiment five, no longer repeat.
Embodiment seven. high-voltage electric-energy meter composition error real time on-line monitoring equipment
This routine high-voltage electric-energy meter composition error real time on-line monitoring equipment is real-time online, the equipment of long term monitoring high-voltage electric-energy meter composition error, the main part of this equipment such as Fig. 1~Fig. 3, Fig. 5, Fig. 6, Fig. 8, shown in Fig. 9 associating, it includes: the mechanism and the structure of precision metering or detection voltage and current information, the mechanism and the structure of special-purpose metering or detection current amplitude and phase value information, also can include the mechanism and the structure of electric energy metrical or detection, even the error in dipping real time on-line monitoring mechanism and the structure of electric energy meter (as 15 among Fig. 1), more than these meterings or testing agency and structure which should be arranged, all available existing public technology contents solves and design, no longer stating more.The precision of described employing, the special-purpose metering or the implication of detecting instrument are: one, and under high pressure (more than 10KV), forceful electric power (big electric current) situation, meter error of high-voltage mutual inductor is implemented monitoring, the high-tension current inductor error in dipping is implemented monitoring.Its two, under high pressure, forceful electric power situation, meter error of high-voltage mutual inductor and high-tension current inductor error in dipping are implemented the long-term monitoring of real-time online.In other words described employing precision, special-purpose metering or detecting instrument must have performances such as high pressure resistant, anti-forceful electric power (big electric current), real-time online use for a long time, measure of precision is satisfactory, safe operation meets the requirements, and could monitor meter error of high-voltage mutual inductor and high-tension current inductor error in dipping.The characteristics of this equipment are: described this equipment must comprise or have the detection accessory that at least one real-time, error free or error can detect voltage and current information with ignoring, the detection accessory that at least one real-time, error free or error can detect current amplitude and phase value information must be comprised or have with ignoring, the detection accessory that at least one real-time, error free or error can detect electric energy metrical information must be comprised or have with ignoring; This equipment must comprise or have at least one or (as two) can be in real time more than one, error free or error can detect voltage and current information with ignoring, detect comprehensive detection annex current amplitude and phase value information and the common composition of detection accessory detection electric energy metrical information, described these detection accessory are to detect extension set: 1). this equipment has the mechanism of the voltage and current information that at least one wire transmission measures or detect, have at least one wired transmission metering or the current amplitude that detects and the mechanism of phase value information, the mechanism that has the electric energy metrical information that at least one wire transmission detects has the mechanism of at least one the wire transmission comprehensive detection information of being made up of jointly them.2). the mechanism of the voltage and current information that at least one wireless transmission measured or detected that this equipment has, have the current amplitude that at least one wireless transmission measures or detect and the mechanism of phase value information, the mechanism that has the electric energy metrical information that at least one wireless transmission detects has the mechanism of at least one the comprehensive detection information of being made up of jointly them.More than these wire transmission or the wireless transmission mechanism that measures or detect information form by electronic mechanism, these mechanisms connect by wire transmission with the main part of this equipment, or get in touch by wireless transmission/reception, these mechanisms are arranged on the branch body portion outside this equipment body part, constitute the extension set of this equipment, these extension sets are made up of housing and interior electronic mechanism thereof.The detailed structure of the mechanism of the voltage and current information that its extension set and this equipment room wire transmission detect is by digital output end--and wire transmission cable-digital input end constitutes.The detailed structure of the current amplitude of the voltage and current information that mechanism, its extension set and this equipment room wire transmission of its extension set and this equipment room wire transmission detection current amplitude and phase value information detects and the comprehensive organ of phase value information is same as described in the above example, no longer repeats.Described wire transmission detect voltage and current information, current amplitude and phase value information, and their the above-described digital transmission structure of integrated information directly error free or error little of being pooled to the voltage and current information, current amplitude and the phase value information that detect on this equipment with wire transmission with ignoring.The current amplitude that its extension set and this equipment room wireless transmission/reception detects and the mechanism of phase value information, the mechanism of the voltage and current information that its extension set and this equipment room wireless transmission/reception detects, the voltage and current information that its extension set and this equipment room wireless transmission/reception detects, the detailed structure of the comprehensive organ of current amplitude and phase value information is: the voltage and current information that described wireless transmission detects, current amplitude and phase value information, and the structure of the extension set of their integrated information is by the digital sample circuit, numeral amplifying circuit and transmitting antenna function thereof connect to be formed.This corresponding equipment must have the mechanism of voltage and current information, current amplitude and phase value information that wireless receiving detects and structure and be connected and formed by digital received amplifying circuit and receiving antenna thereof, digital input circuit function.The described digitizing structure of this example directly error free or error little of being pooled to voltage, current information and the current amplitude and the phase value information that detect on this equipment with wireless transmission/receive mode with ignoring.More than the electronic circuit spare design that all can sell with existing public technology contents and public merchant of described each circuit of each example and making, as long as they can finish or realize all can using or adopt of each circuit function.All the other are not stated is same as among the embodiment one entirely~described in the embodiment six, no longer repeat
Embodiment eight. high-voltage electric-energy meter composition error real time on-line monitoring equipment
This routine high-voltage electric-energy meter composition error real time on-line monitoring equipment is real-time online, the equipment of long term monitoring high-voltage electric-energy meter composition error, the main part of this equipment is shown in Fig. 1~Fig. 3 associating, it includes: the mechanism and the structure of precision metering or detection voltage and current information, mechanism and structure that special-purpose metering or detection current amplitude and phase value information are arranged, mechanism and structure that electric energy metrical or detection also can be arranged, even the error in dipping real time on-line monitoring mechanism and the structure of electric energy meter (as 15 among Fig. 1), more than these meterings or testing agency and structure which should be arranged, all available existing public technology contents solves and design, no longer stating more.The precision of described employing, the special-purpose metering or the implication of detecting instrument are: one, and under high pressure (more than 10KV), forceful electric power (big electric current) situation, meter error of high-voltage mutual inductor is implemented monitoring, the high-tension current inductor error in dipping is implemented monitoring.Its two, under high pressure, forceful electric power situation, meter error of high-voltage mutual inductor and high-tension current inductor error in dipping are implemented the long-term monitoring of real-time online.In other words described employing precision, special-purpose metering or detecting instrument must have performances such as high pressure resistant, anti-forceful electric power (big electric current), real-time online use for a long time, measure of precision is satisfactory, safe operation meets the requirements, and could monitor meter error of high-voltage mutual inductor and high-tension current inductor error in dipping.The characteristics of this equipment are: this equipment can be provided with the mechanism and the structure of calculating, and calculation mechanism includes micro computer or microprocessor and software program and auxiliary circuit.Structure about calculation mechanism can and realize with existing public technology contents design, needn't state more.A. this equipment calculates and draws the meter error of high-voltage mutual inductor value of real time on-line monitoring to sampling or the voltage and current information that detects by mathematical formulae, and described mathematical formulae is:
Figure Y20072012813400331
Figure Y20072012813400332
Every and each symbolic significance is narrated in the formula, no longer repeats.B. this equipment calculates each error of sampling or detection and draw by mathematical formulae the composition error value of high-voltage electric-energy meter in real time; For three-phase three wire system, described mathematical formulae is:
ϵ = 1 P ′ 1 + P ′ 3 × { P ′ 1 ( ϵ W 1 + f Uab + f ab + f Ia ) + P ′ 3 ( ϵ W 3 + f Ucb + f cb + f Ic )
Figure Y20072012813400334
Figure Y20072012813400335
For three-phase four wire system, described mathematical formulae is:
ϵ = 1 P ′ 1 + P ′ 2 + p ′ 3 × { P ′ 1 × ( ϵ W 1 + f Ua 0 + f a 0 + f Ia ) + P ′ 2 × ( ϵ W 2 + f Ub 0 + f b 0 + f Ib )
Figure Y20072012813400337
Figure Y20072012813400341
Figure Y20072012813400342
Every and each symbolic significance is narrated in two formulas, no longer repeats.All the other are not stated is same as among the embodiment one entirely~described in the embodiment seven, no longer repeat
Embodiment nine. high-voltage electric-energy meter composition error real time on-line monitoring equipment
This routine high-voltage electric-energy meter composition error real time on-line monitoring equipment is real-time online, the equipment of long term monitoring high-voltage electric-energy meter composition error, the main part of this equipment is shown in Fig. 1~Fig. 3 associating, it includes: the mechanism and the structure of precision metering or detection voltage and current information, mechanism and structure that special-purpose metering or detection current amplitude and phase value information are arranged, also can include the mechanism and the structure of electric energy metrical or detection, even the error in dipping real time on-line monitoring mechanism and the structure of electric energy meter (as 15 among Fig. 1), more than these meterings or test section, should there be all available existing public technology contents of which mechanism and structure to solve and design, no longer stating more.The precision of described employing, the special-purpose metering or the implication of detecting instrument are: one, and under high pressure (more than 10KV), forceful electric power (big electric current) situation, meter error of high-voltage mutual inductor is implemented monitoring, the high-tension current inductor error in dipping is implemented monitoring.They are two years old, under high pressure, forceful electric power situation, meter error of high-voltage mutual inductor and high-tension current inductor error in dipping are implemented the long-term monitoring of real-time online, in other words described employing precision, special-purpose metering or detecting instrument must have performances such as high pressure resistant, anti-forceful electric power (big electric current), real-time online use for a long time, measure of precision is satisfactory, safe operation meets the requirements, and could monitor meter error of high-voltage mutual inductor and high-tension current inductor error in dipping.The characteristics of this equipment are: this equipment is that wire transmission connects with a computing center at least, or the structure of the contact of wireless transmission/reception is: the voltage and current information that wire transmission detects between this equipment of i. and the computing center that connects, current amplitude and phase value information, and the concrete structure of the mechanism of their integrated information is: the voltage and current information that described this equipment wire transmission detects, current amplitude and phase value information, and the structure of the mechanism of their integrated information is connected one by one and is formed by digital processing circuit 53-wire transmission interface circuit (RS232 interface circuit 54)-transmission yarn.Perhaps, the voltage and current information, current amplitude and the phase value information that detect of the wireless transmission between this equipment of ii. and the computing center that gets in touch/reception, and their concrete structure of mechanism of integrated information be: described this equipment wireless send the voltage and current information, current amplitude and the phase value information that detect, and their structure of mechanism of integrated information connect by digital processing circuit 53, wireless interaction interface circuit (Ethernet interface 55) and transmitting antenna function thereof and form; The computing center that gets in touch with this equipment must correspondingly be provided with voltage and current information, current amplitude and the phase value information that wireless receiving detects, the mechanism that reaches their integrated information, voltage and current information, current amplitude and the phase value information that described wireless receiving detects, and their receiving mechanism of integrated information be arranged on computing center, by voltage and current information, current amplitude and phase value information, and their integrated information receiving antenna, wireless interaction interface circuit function connect and form.All the other are not stated is same as among the embodiment one entirely~described in the embodiment eight, no longer repeat.

Claims (3)

1. high-voltage electric-energy meter composition error real time on-line monitoring equipment, the main part of this equipment includes precision metering or detects the mechanism of voltage and current information and structure-be meter error of high-voltage mutual inductor real time on-line monitoring part, special-purpose metering or mechanism and the structure that detects current amplitude and phase value information--be high-tension current inductor error in dipping real time on-line monitoring part, high voltage potential transformer secondary circuit voltage drop real time on-line monitoring part, even the error in dipping real time on-line monitoring part of electric energy meter, be characterised in that:
1). described this equipment must comprise or have the detection accessory that at least one real-time, error free or error can detect voltage and current information with ignoring; Must comprise or have the detection accessory that at least one real-time, error free or error can detect current amplitude and phase value information with ignoring; Must comprise or have the detection accessory that at least one real-time, error free or error can detect electric energy metrical information with ignoring; Perhaps this equipment must comprise or have at least one real-time, error free or error and can detect the common comprehensive detection annex of forming of detection accessory voltage and current information, that detect current amplitude and phase value information and that detect electric energy metrical information with ignoring, described these detection accessory be the test side or/and extension set:
A. this equipment or/and have at least one metering or detect voltage and current information or/and have at least one metering or detect current amplitude and phase value information or/and have test side and the cable thereof that at least one detects electric energy metrical information, or/and have comprehensive detection end and the cable thereof that at least one is made of jointly them; Or/and,
B. this equipment is or/and have at least one wire transmission or/and the mechanism of the voltage and current information that wireless transmission measured or detected, or/and have at least one wire transmission or/and the mechanism of current amplitude that wireless transmission measured or detected and phase value information, or/and have at least one wire transmission or/and the mechanism of the electric energy metrical information that wireless transmission detected, or/and have the comprehensive detection mechanism that at least one is made of jointly them, these mechanisms form by electronic mechanism, these mechanisms connect by the cable wire of transmitting that has with the main part of this equipment, or get in touch by wireless transmission/reception, these mechanisms are arranged on the branch body portion outside this equipment body part, constitute the extension set of this equipment, these extension sets are made up of housing and interior electronic mechanism thereof;
2). this equipment can be provided with the mechanism and the structure of calculating, and calculation mechanism includes micro computer or microprocessor and software program and auxiliary circuit;
A. this equipment calculates and draws the meter error of high-voltage mutual inductor value of real time on-line monitoring to sampling or the voltage and current information that detects by mathematical formulae, and described mathematical formulae is:
Figure Y2007201281340002C1
In the formula: f U, δ URatio and the angular difference of-tested high voltage potential transformer under the actual motion load;
f 0, δ 0-unloaded ratio and the unloaded angular difference measured in advance;
f H, δ HRatio and angular difference under-the rated load measured in advance;
I X-actual motion load is the secondary current of high voltage potential transformer down;
I HSecondary current under the-rated load measured in advance;
Figure Y2007201281340003C2
The angle of impedance of-actual motion load, i.e. phase angle between high voltage potential transformer secondary voltage and secondary current;
Figure Y2007201281340003C3
Angle of impedance under the-rated load measured in advance;
(%)-result of calculation is percentage;
(')-result of calculation unit is for dividing;
B. this equipment calculates each error of sampling or detection and draw by mathematical formulae the composition error value of high-voltage electric-energy meter in real time; For three-phase three wire system, described mathematical formulae is:
ϵ = 1 P ′ 1 + P ′ 3 × { P ′ 1 ( ϵ W 1 + f Uab + f ab + f Ia ) + P ′ 3 ( ϵ W 3 + f Ucb + f cb + f Ic )
Figure Y2007201281340003C5
Figure Y2007201281340003C6
In the formula: ε--the composition error of high-voltage electric-energy meter;
ε W1, ε W3The relative error of-the first phase, third phase power ammeter (%);
P ' 1, P ' 3AC power (electric energy) value that-the first phase, third phase power ammeter record;
f Uab, δ Uab-AB phase voltage mutual inductor (or voltage transformer secondary line voltage
Figure Y2007201281340003C7
) ratio (%) and angular difference (');
f Ucb, δ Ucb-CB phase voltage mutual inductor (or voltage transformer secondary line voltage ) ratio (%) and angular difference (');
f Ia, δ IaRatio of-A phase current mutual inductor (%) and angular difference (');
f Ic, δ IcRatio of-C phase current mutual inductor (%) and angular difference (');
f Ab, δ AbThe ratio (%) and the angular difference (') of-AB phase voltage secondary circuit voltage drop;
f Cb, δ CbThe ratio (%) and the angular difference (') of-CB phase voltage secondary circuit voltage drop;
(%)-and ratio: percentage;
(')-angular difference: unit is for dividing;
Figure Y2007201281340003C9
Figure Y2007201281340003C10
-be respectively With
Figure Y2007201281340003C12
Between,
Figure Y2007201281340003C13
With
Figure Y2007201281340003C14
Between phase angle;
Figure Y2007201281340004C1
Figure Y2007201281340004C2
The AB of-electric energy meter place phase voltage, the CB of electric energy meter place phase voltage;
Figure Y2007201281340004C3
Figure Y2007201281340004C4
-secondary current phasor;
For three-phase four wire system, described mathematical formulae is:
ϵ = 1 P ′ 1 + P ′ 2 + P ′ 3 × { P ′ 1 × ( ϵ W 1 + f Ua 0 + f a 0 + f Ia ) + P ′ 2 × ( ϵ W 2 + f Ub 0 + f b 0 + f Ib )
Figure Y2007201281340004C6
Figure Y2007201281340004C7
Figure Y2007201281340004C8
In the formula: ε--the composition error of high-voltage electric-energy meter;
ε W1, ε W2, ε W3The error (%) of-the first phase, second phase, third phase power ammeter;
f Ia, δ Ia, f Ib, δ Ib, f Ic, δ IcThe ratio (%) and the angular difference (') of ,-A phase, B phase, C phase current mutual inductor;
f Ua0, δ Ua0, f Ub0, δ Ub0, f Uc0, δ Uc0The ratio (%) and the angular difference (') of-A phase, B phase, C phase voltage mutual inductor;
f A0, δ A0, f B0, δ B0, f C0, δ C0-be respectively the ratio (%) and the angular difference (') of A, B, C phase voltage secondary circuit voltage drop;
P ' 1, P ' 2, P ' 3-AC power energy value that each phase power ammeter records;
Figure Y2007201281340004C9
-be respectively
Figure Y2007201281340004C10
With
Figure Y2007201281340004C11
Between,
Figure Y2007201281340004C12
With
Figure Y2007201281340004C13
Between, With
Figure Y2007201281340004C15
Between phase angle;
The A of-electric energy meter place phase voltage, the B of electric energy meter place phase voltage, the C of electric energy meter place phase voltage;
Figure Y2007201281340004C17
-secondary current phasor;
Wherein, the real-time on-line detecting method of electric energy meter error is: use known electric energy metrical instrument real-time online that electric energy meter error is measured or detects; The ratio of voltage circuit secondary voltage drop and angular difference real-time on-line detecting method are: use the ratio of known secondary voltage drop and angular difference gauging instrument real-time online that the ratio and the angular difference of secondary voltage drop are measured or detect.
2. high-voltage electric-energy meter composition error real time on-line monitoring equipment according to claim 1 is characterised in that: the detailed structure of described this high-voltage electric energy measurement error real time on-line monitoring equipment has:
A. described this equipment is or/and at least one of band detects the test side of voltage and current information or/and at least one of band detects the test side of current amplitude and phase value information, or/and have at least one by the comprehensive detection end that they are formed jointly, their structure is: the cable that connects with this Equipment Inspection input end and the voltage and current sample detecting end of end thereof; The cable that connects with this Equipment Inspection input end and the current amplitude of end and phase value sample detecting end; The cable that connects with this Equipment Inspection input end and the comprehensive detection end of end thereof;
B. described this equipment is or/and the split of the voltage and current information that at least one wire transmission of band detects or branch machine mechanism, or/and the split of current amplitude that at least one wire transmission of being with detects and phase value information or branch machine mechanism, or/and the comprehensive split of voltage and current information, current amplitude and phase value information that at least one wire transmission of band detects or branch machine mechanism.The voltage and current information institution that its extension set and this equipment room wire transmission detect, the current amplitude that its extension set and this equipment room wire transmission detect and the mechanism of phase value information, its extension set and this equipment room wire transmission detect comprises voltage and current information, the detailed structure of the comprehensive organ of current amplitude and phase value information is: voltage and current information, current amplitude and phase value information, and the mould/number conversion circuit of the sample circuit of their integrated information-controller control--transmission circuit and transmission yarn--interface circuit and connector--input circuit function connection composition, to the moving connector of interface circuit, constitute the wire transmission extension set of this device, mechanism's union end is gone in the output that its moving connector is this wire transmission extension set, and it is decided connector and constitutes this equipment voltage and current information, current amplitude and phase value input circuit;
C. described this equipment is or/and the split of the voltage and current information that at least one wireless transmission of band detects or branch machine mechanism, or/and the split of current amplitude that at least one wireless transmission of band detects and phase value information or branch machine mechanism, or/and the voltage and current information that at least one wireless transmission of band detects, the comprehensive split of current amplitude and phase value information or branch machine mechanism, the voltage and current information institution that its extension set and this equipment room wireless transmission/reception detects, current amplitude and phase value information institution that its extension set and this equipment room wireless transmission/reception detects, its extension set and this equipment room wireless transmission/reception detects voltage and current information, the detailed structure of the comprehensive organ of current amplitude and phase value information is: voltage and current information, current amplitude and phase value information, and the sample circuit of their integrated information, mould/number conversion the circuit of controller control, transtation mission circuit and transmitting antenna function thereof connect forms the voltage and current information that wireless transmission detects, current amplitude and phase value information, and the extension set of their integrated information; This equipment also must corresponding be provided with the voltage and current information that wireless receiving detects, current amplitude and phase value information, and the mechanism of their integrated information, described wireless receiving detects voltage and current information, current amplitude and phase value information, and the mechanism of their integrated information is arranged on this equipment body part, by voltage and current information, current amplitude and phase value information, and the receiving circuit and the receiving antenna thereof of their integrated information, amplifying circuit, the input circuit function connects to be formed, and its input circuit promptly is the voltage and current information of this equipment, current amplitude and phase value information, and the input circuit of their integrated information;
D. this equipment or be with the wire transmission of computing center or the structure of wireless transmission/reception: this equipment is or/and at least one computing center is wire transmission connects or the structure of wireless transmission/reception contact is:
I. voltage and current information, current amplitude and the phase value information that wire transmission detects between this equipment and the computing center that connects, and their concrete structure of mechanism of integrated information be: voltage and current information, current amplitude and the phase value information that described this equipment wire transmission detects, and their structure of mechanism of integrated information connect one by one and form by digital processing circuit-wire transmission interface circuit-transmission yarn; Perhaps,
Ii. the voltage and current information, current amplitude and the phase value information that detect of the wireless transmission between this device and the computing center that gets in touch/reception, and their concrete structure of mechanism of integrated information be: described this equipment wireless send the voltage and current information, current amplitude and the phase value information that detect, and their structure of mechanism of integrated information connect by digital processing circuit, wireless interaction interface circuit and transmitting antenna function thereof and form; The computing center that gets in touch with this equipment must correspondingly be provided with voltage and current information, current amplitude and the phase value information that wireless receiving detects, the mechanism that reaches their integrated information, voltage and current information, current amplitude and the phase value information that described wireless receiving detects, and their receiving mechanism of integrated information be arranged on computing center, by voltage and current information, current amplitude and phase value information, and their integrated information receiving antenna, wireless interaction interface circuit function connect and form.
3. high-voltage electric-energy meter composition error real time on-line monitoring equipment according to claim 1 is characterised in that: the detailed structure of described high-voltage electric energy measurement error real time on-line monitoring equipment has:
1). described this equipment is or/and at least one of band detects the test side of voltage and current information, or/and at least one of band detects the test side of current amplitude and phase value information, or/and the band at least one by the comprehensive detection end that they are formed jointly, their detailed structure is: the detection cable and the sample detecting end of described test side have fixing structure;
2). described this equipment is or/and the split of the voltage and current information that at least one wire transmission of band detects or branch machine mechanism, or/and the split of current amplitude that at least one wire transmission of being with detects and phase value information or branch machine mechanism, or/and comprehensive split that comprises voltage and current information, current amplitude and phase value information that at least one wire transmission of band detects or branch machine mechanism.The voltage and current information institution that its extension set and this equipment room wire transmission detect, its extension set and this equipment room wire transmission detect current amplitude and phase value information institution, and the detailed structure of the comprehensive organ that comprises voltage and current information, current amplitude and phase value information that its extension set and this equipment room wire transmission detect is:
The structure of the mechanism of the voltage and current information that a. described wire transmission detects is connected one by one and is formed by mould/number conversion circuit, photoelectric isolating circuit, differential output circuit, transmission circuit, difference input circuit, photoelectric isolating circuit, the input circuit of sample circuit, controller control; Perhaps,
B. voltage and current information, current amplitude and the phase value information that described wire transmission detects, and their structure of mechanism of integrated information connect one by one and form by mould/number conversion circuit, electrical-optical conversion interface circuit, Transmission Fibers, opto-electronic conversion interface circuit, amplifying circuit, the input circuit of sample circuit, controller control; Perhaps,
C. voltage and current information, current amplitude and the phase value information that described wire transmission detects, and their structure of mechanism of integrated information connect one by one and form by digital sample circuit, digital amplifying circuit (a), electrical-optical conversion interface circuit, Transmission Fibers, opto-electronic conversion interface circuit, digital amplifying circuit (b), digital input circuit; Perhaps,
The structure of the mechanism of the voltage and current information that d. described wire transmission detects is by digital output end--and wire transmission cable-digital input end constitutes;
3). described this equipment is or/and the split of the voltage and current information that at least one wireless transmission of band detects or branch machine mechanism, or/and the split of current amplitude that at least one wireless transmission of band detects and phase value information or branch machine mechanism, or/and the voltage and current information that at least one wireless transmission of band detects, the comprehensive split of current amplitude and phase value information or branch machine mechanism, the voltage and current information institution that its extension set and this equipment room wireless transmission/reception detects, current amplitude and phase value information institution that its extension set and this equipment room wireless transmission/reception detects, the voltage and current information that its extension set and this equipment room wireless transmission/reception detects, the detailed structure of the comprehensive organ of current amplitude and phase value information is:
A. voltage and current information, current amplitude and the phase value information that described wireless transmission detects, and their structure of extension set of integrated information connect by mould/number conversion circuit, digital signal processing module, wireless data sending communication module and the transmitting antenna function thereof of sample circuit, controller control and form; This corresponding equipment must have the mechanism of voltage and current information, current amplitude and phase value information that wireless receiving detects and their integrated information and structure and be connected and formed by wireless data sending communication module and receiving antenna thereof, digital signal processing module, input circuit function; Perhaps,
B. voltage and current information, current amplitude and the phase value information that described wireless transmission detects, and their structure of extension set of integrated information connect by mould/number conversion circuit, digital modulation circuit, frequency conversion transtation mission circuit and the transmitting antenna function thereof of sample circuit, controller control and form; This corresponding equipment must have the mechanism of voltage and current information, current amplitude and phase value information that wireless receiving detects and their integrated information and structure and be connected and formed by reception and frequency changer circuit and receiving antenna thereof, digital demodulating circuit, input circuit function; Perhaps,
C. voltage and current information, current amplitude and the phase value information that described wireless transmission detects, and their structure of extension set of integrated information connect by digital sample circuit, digital amplifying circuit and transmitting antenna function thereof and form; This corresponding equipment must have the mechanism of voltage and current information, current amplitude and phase value information that wireless receiving detects and their integrated information and structure and be connected and formed by digital received amplifying circuit and receiving antenna thereof, digital input circuit function.
CNU2007201281347U 2007-07-20 2007-07-20 Real time online monitoring device for integrated error of high-voltage power calculation device Expired - Lifetime CN201069470Y (en)

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Cited By (7)

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CN101968537A (en) * 2010-08-23 2011-02-09 太原市优特奥科电子科技有限公司 Error magnitude calibration device and transferring method for digital power quality analyzer
CN101876694B (en) * 2009-11-24 2012-10-03 湖北省电力试验研究院 Configuration software based function detection device of multifunctional electric energy meter and method thereof
CN104698418A (en) * 2015-03-24 2015-06-10 东营市双益电气有限责任公司 Overall calibration method of measuring system of transformer test station
CN105068035A (en) * 2015-08-28 2015-11-18 重庆拉姆达信息技术有限公司 Voltage transformer error level dynamic detection method and system
CN105158723A (en) * 2015-07-30 2015-12-16 贵州电力试验研究院 Error evaluation system and method for digital electric energy metering system
CN105203987A (en) * 2015-10-27 2015-12-30 国网山东利津县供电公司 Long-distance detection device and method for electric energy measurement of transformer substation
CN105785313A (en) * 2016-04-29 2016-07-20 贵州电网有限责任公司安顺供电局 One-man multiple-machine mode electric energy metering and verification integrated platform and verification method thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101876694B (en) * 2009-11-24 2012-10-03 湖北省电力试验研究院 Configuration software based function detection device of multifunctional electric energy meter and method thereof
CN101968537A (en) * 2010-08-23 2011-02-09 太原市优特奥科电子科技有限公司 Error magnitude calibration device and transferring method for digital power quality analyzer
CN101968537B (en) * 2010-08-23 2013-03-20 太原市优特奥科电子科技有限公司 Error magnitude calibration device and transferring method for digital power quality analyzer
CN104698418A (en) * 2015-03-24 2015-06-10 东营市双益电气有限责任公司 Overall calibration method of measuring system of transformer test station
CN105158723A (en) * 2015-07-30 2015-12-16 贵州电力试验研究院 Error evaluation system and method for digital electric energy metering system
CN105158723B (en) * 2015-07-30 2019-02-15 贵州电力试验研究院 A kind of error evaluation system and method for digitalized electric energy metering system
CN105068035A (en) * 2015-08-28 2015-11-18 重庆拉姆达信息技术有限公司 Voltage transformer error level dynamic detection method and system
CN105068035B (en) * 2015-08-28 2018-04-13 重庆拉姆达信息技术有限公司 A kind of voltage transformer error horizontal dynamic detection method and system
CN105203987A (en) * 2015-10-27 2015-12-30 国网山东利津县供电公司 Long-distance detection device and method for electric energy measurement of transformer substation
CN105785313A (en) * 2016-04-29 2016-07-20 贵州电网有限责任公司安顺供电局 One-man multiple-machine mode electric energy metering and verification integrated platform and verification method thereof

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