CN201110893Y - High voltage potential transformer secondary circuit pressure-drop electric energy metering error real time monitoring device - Google Patents

High voltage potential transformer secondary circuit pressure-drop electric energy metering error real time monitoring device Download PDF

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Publication number
CN201110893Y
CN201110893Y CNU2007201281332U CN200720128133U CN201110893Y CN 201110893 Y CN201110893 Y CN 201110893Y CN U2007201281332 U CNU2007201281332 U CN U2007201281332U CN 200720128133 U CN200720128133 U CN 200720128133U CN 201110893 Y CN201110893 Y CN 201110893Y
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China
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electric energy
circuit
metrical information
energy metrical
extension
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CNU2007201281332U
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Chinese (zh)
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曹锐
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太原市优特奥科电子科技有限公司
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Priority to CNU2007201281332U priority Critical patent/CN201110893Y/en
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Publication of CN201110893Y publication Critical patent/CN201110893Y/en

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Abstract

Disclosed is a real-time monitoring device for high voltage transformer secondary loop voltage drop power measurement errors, belonging to the technical field of high-voltage power energy measurement. The device is provided with a high-voltage power energy measurement mechanism and structure and is also provided with at least one detecting accessory which can make real-time detection of the power energy measurement information. The detecting accessory refers to at least one detecting end of power energy measurement information and the related cable line, or refers to a mechanism for power energy measurement information detested through wire transmission or wireless transmission. Such mechanisms serve as subsystems outside the main body of the device and are respectively composed of a shell body and an electronic mechanism inside the shell body. Communicating with the main body of the device through wire connection or wireless transmitting or receiving, the subsystems enable the detected information which goes through digital processing to be fluxed on the device without errors so as to measure the secondary loop voltage drop power energy errors. The device can make online, real-time and long-term monitoring of the secondary loop voltage drop power energy measurement errors of high voltage transformers and deserves promotion and application in the field of power industry detection.

Description

The measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device
One. technical field
The disclosed measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device of the utility model belongs to the electric energy metrical technical field of high pressure (more than 10KV), forceful electric power (big electric current), and what be specifically related to is the long-term monitoring device of electric energy metering error real-time online that is caused at high-tension line mesohigh voltage transformer secondary loop pressure drop.
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 instrument of necessity that electric energy is measured, is to be used for the effective means for the electricity consumption trade settlement for, electricity consumption both sides.Electric power meter accurately whether, be directly connected to confession, electricity consumption both sides' economic interests.Therefore, the relevant electric energy metrical rules and regulations of country must regularly be carried out field test to the error of electric power meter.
Electric power meter is made up of voltage transformer (VT) (PT), current transformer (CT) and electric energy meter usually.Thereby the error of electric power meter is made up of the error of PT error, CT error, error that the PT secondary voltage drop is caused and electric energy meter.Wherein, PT error, CT error are called electric energy metrical primary circuit error, and the error of the error that the PT secondary voltage drop is caused, electric energy meter is called the electric energy metering secondary error.
Up to the present, the electric energy metering error measuring method that the voltage transformer secondary loop pressure drop is caused is, use PT secondary voltage drop tester, measure the PT secondary voltage drop, the measured value by the PT secondary voltage drop calculates the caused measuring error of PT secondary voltage drop by computing formula then.Owing in the computing formula of the error that the PT secondary voltage drop is caused, contain a parameter that is called average power factor, and a mean value of (some months) in this parametric representation a period of time, and be difficult for estimating its exact value, therefore, method drew is not the electric energy metering error that real voltage transformer secondary loop pressure drop of a certain moment is caused with present, but an estimated value.Thereby the proving installation of studying a kind of electric energy metering error that can real-time online measuring voltage transformer secondary loop pressure drop be caused is demanded urgently and is looked forward to.We study the electric energy metering error proving installation that successful voltage transformer secondary loop pressure drop is caused, provide a kind of electric energy metering error online in real time brand-new, that the high voltage potential transformer secondary circuit voltage drop that can't finish of can finishing is over caused to measure, and this measurement is simple and easy to do, exactly the electric energy metering error that caused of measuring voltage transformer secondary circuit pressure drop.The proving installation of Development and design success, solved the difficult problem of the electric energy metering error that the electric energy detection field for a long time can't measuring voltage transformer secondary circuit pressure drop be caused, the electric energy detection that yet is through with field does not have the history that the electric energy metering error proving installation that the voltage transformer secondary loop pressure drop caused is arranged always, and this is innovative thinking and creative invention.We have applied for that (application number is Chinese patent " electric energy metering secondary coop composition error detection method and pick-up unit ": 200610048384.X) this new pick-up unit, " electric energy metering secondary coop composition error pick-up unit " (application number is: 200620127817.6), the technical characterstic of " measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device " of the present utility model is: it makes above-mentioned this new detection method be extended to high pressure (more than 10KV) electric energy metrical technical field, high pressure, the electric energy metrical of forceful electric power can propose comprehensively the electric energy metrical technology undoubtedly, more stern challenge needs the electric energy metrical versatility to rise to high pressure, the level that forceful electric power standard and safety etc. require." measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device " of the present utility model all the time real-time online, measure the electric energy metering error that the high voltage potential transformer secondary circuit voltage drop is caused for a long time; can protect economic interests better, also make new contribution for the scientific-technical progress of electric utility for the electricity consumption both sides.
Three. summary of the invention
The purpose of the present utility model is: the technology that discloses the electric energy metering error real time on-line monitoring device that this high voltage potential transformer secondary circuit voltage drop caused to society, for accurate means that the electric energy metering error that a kind of brand-new detection high voltage potential transformer secondary circuit voltage drop caused is provided for electricity consumption both sides and proving installation conveniently, also do some work for the scientific-technical progress of electric utility.
The technical solution of the utility model is as follows: about this measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device, this device main body partly includes the mechanism and the structure of electric energy metrical or detection, mechanism and structure about electric energy metrical or detection, there is all available existing public technology contents of which mechanism and structure to solve and design, electric power meter in-situs tester that is ZL200420016518.6 as the patent No. etc. be exactly the first-selection of this measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device with reference to the sample list, needn't state more.This apparatus features is: 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.Described this device must have at least one or more than one (as two or three etc.) can be real-time, error free or error can detect the detection accessory of electric energy metrical information with ignoring, described detection accessory be the test side or/and extension set: this device of a. is or/and have the test side and the cable thereof of at least one detection electric energy metrical information.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 device is or/and have at least one wire transmission or/and the mechanism of the electric energy metrical information that wireless transmission detected, this mechanism forms by electronic mechanism, this mechanism is and this device main body part 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 apparatus main body part, constitute the extension set of this device, this extension set is 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.Described real-time, error free or error can ignore ground wire transmission or wireless transmission is meant: the wire transmission of this device or wireless transmission extension set sampling or the electric energy metrical information that detects through error free after the digitized processing or error little of being pooled on this device with ignoring.
According to above-described measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device, technical characterstic also has: described this device of a. is or/and at least one of band detects the structure of the test side of electric energy metrical information is: the cable that connects with this device detection input end and the electric energy metrical sample detecting end of end thereof, its sample detecting end in this way directly and the union end of voltage three-phase secondary cable, it is higher to carry out sampling precision like this.B. described this device is or/and the split of the electric energy metrical information that at least one wire transmission of band detects or branch machine mechanism, the detailed structure of the mechanism of the electric energy metrical information that wire transmission detects between its extension set and this device is:--the input circuit function connects composition to the mould/number conversion circuit of the sample circuit of electric energy metrical information-controller control for transmission circuit and transmission yarn--interface circuit and connector--, the sample unit of its sample circuit can be arranged on the section start end of tested secondary circuit, be the voltage measurement intelligence sample position at PT place, its sample unit in this way directly and the union end of voltage three-phase secondary cable.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 electric energy metrical information.C. described this device is or/and the split of the electric energy metrical information that at least one wireless transmission of band detects or divide machine mechanism, and the detailed structure of the mechanism of the electric energy metrical information that its extension set and wireless transmission/receptions between this device detect is: mould/number conversion circuit, transtation mission circuit and the transmitting antenna function thereof that the sample circuit of electric energy metrical information, controller are controlled connects the extension set of the electric energy metrical information of composition wireless transmission detection.The sample unit of sample circuit can be arranged on the section start end of tested secondary circuit, i.e. the voltage measurement intelligence sample position at PT place, and its sample unit is in this way directly and the union end of voltage three-phase secondary cable.Device also must corresponding be provided with the mechanism of the electric energy metrical information of wireless receiving detection, the mechanism of the electric energy metrical information that described wireless receiving detects is arranged on this apparatus main body part, connected and formed by the receiving circuit of electric energy metrical information and receiving antenna thereof, amplifying circuit, input circuit function, its input circuit promptly is the input circuit of the electric energy metrical information of this device.The extension set of not getting rid of extension set that this device has the test side of detecting electric energy metrical information, electric energy metrical information that wire transmission detects simultaneously, electric energy metrical information that wireless transmission detects is the structure of several (as three kinds each) altogether.
According to above-described measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device, technical characterstic also has: 1). and described this device is or/and at least one of band detects the detailed structure of the test side of electric energy metrical information is: the detection cable and the sample detecting end of this 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 electric energy metrical 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 device is or/and the extension set of the electric energy metrical information that at least one wire transmission of band detects, and the detailed structure of the mechanism of the electric energy metrical information that wire transmission detects between its extension set and this device is: mould/number conversion circuit, photoelectric isolating circuit, differential output circuit, transmission circuit, difference input circuit, photoelectric isolating circuit, input circuit that the structure of the mechanism of the electric energy metrical information of the described wire transmission detection of a. is controlled by sample circuit, controller connect one by one and form.Perhaps, the structure of the mechanism of the electric energy metrical information of the described wire transmission detection of b. is connected one by one and is formed 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, and error free then or error little of installing the electric energy metrical information aggregating that detects to this with wire transmission with ignoring.Perhaps, the structure of the mechanism of the electric energy metrical information of the described wire transmission detection of c. is connected one by one and is formed by digital sample circuit, digital amplifying circuit, transmission circuit, interface circuit, digital input circuit.Perhaps, the structure of the mechanism of the electric energy metrical information of the described wire transmission detection of d. is by digital output end--and wire transmission cable-digital input end constitutes.2 described digital transmission structures of above c, d directly error free or error little of being pooled to the electric energy metrical information that detects on this device 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 device is or/and the extension set of the electric energy metrical information that at least one wireless transmission of band detects, and the detailed structure of the mechanism of the electric energy metrical information of wireless transmission/receptions detection is between its extension set and this device: mould/number conversion circuit, digital signal processing module, wireless data sending communication module and transmitting antenna function thereof that the structure of the extension set of the electric energy metrical information of the described wireless transmission detection of a. is controlled by sample circuit, controller connect to be formed; This corresponding device must have the mechanism of the electric energy metrical information that wireless receiving detects 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, the structure of the extension set of the electric energy metrical information of the described wireless transmission detection of b. is made up of mould/number conversion circuit, digital modulation circuit, frequency conversion transtation mission circuit and the connection of transmitting antenna function thereof of sample circuit, controller control; This corresponding device must have the mechanism of the electric energy metrical information that wireless receiving detects and structure and be connected and formed 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, and error free then or error little of installing the electric energy metrical information aggregating that detects to this with wireless transmission with ignoring.Perhaps, the structure of the extension set of the electric energy metrical information of the described wireless transmission detection of c. is made up of digital sample circuit, digital amplifying circuit and the connection of transmitting antenna function thereof; This corresponding device must have the mechanism of the electric energy metrical 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 c point directly error free or error little of being pooled to the electric energy metrical information that detects on this device 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.
The advantage of measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device of the present utility model is a lot: the advantage of this measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device is: 1. this device is at high pressure (more than 10KV), the monitoring of implementing under forceful electric power (big electric current) situation, it makes this new detection method be extended to the high-voltage electric energy measurement technical field, high pressure, the electric energy metrical of forceful electric power proposes comprehensively the electric energy metrical technology beyond doubt, more stern challenge needs the electric energy metrical versatility to rise to high pressure, the level that forceful electric power standard and safety etc. require; 2. this device 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 electric energy metrical technology the highest requirement and level, also is the most difficult requirement and level of electric energy metrical technology; 3. this real-time online long term monitoring device of implementing under high pressure, forceful electric power situation is autonomous innovation and the technology leap of electric energy metrical technology in high pressure (more than 10KV), forceful electric power situation, and it has made contribution for the electric energy metrical level and the raising of China.4. this measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device also for the accurate means and the convenient and swift proving installation that can use for a long time again of the electric energy metering error that a kind of brand-new detection high voltage potential transformer secondary circuit voltage drop caused are provided for the electricity consumption both sides, also contributes for the scientific-technical progress of electric utility.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 7 width of cloth:
Fig. 1 is high voltage potential transformer secondary circuit voltage drop (being caused) electric energy metering error real-time monitoring device structural representation;
Fig. 2 is the wire transmission mechanism of the error free test side of employing and the measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device synoptic diagram of structure;
Fig. 3 is for adopting the measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device synoptic diagram of free from error wire transmission extension set and structure;
Fig. 4 is the extension set and the structure principle chart of a kind of error free wire transmission electric energy metrical information of Fig. 3 measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device;
Fig. 5 is for adopting the measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device synoptic diagram of free from error wireless transmission/reception extension set and structure;
Fig. 6 is the extension set and the structure principle chart of a kind of error free wireless transmission/reception electric energy metrical information of Fig. 5 measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device;
Fig. 7 is the extension set and the structure principle chart of the another kind of error free wireless transmission/reception electric energy metrical information of Fig. 5 measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device;
Adopted unified label in each figure, promptly same object is used same label in each figure.In each figure: 1. voltage transformer (VT) (PT); 2. current transformer (CT); 3. voltage three-phase secondary line input end; 4. electric current three-phase secondary line input end; 5. electric current three-phase secondary cable; 6. voltage three-phase secondary cable; 7. voltage three-phase secondary line section start (end) sampling end; 8. voltage three-phase secondary line user electric energy meter place (input end) sampling end; 9. electric current three-phase secondary line user electric energy meter place (input end) sampling end; 10. user's electric energy meter; 11. electric energy metrical instrument (or measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device); 12. the detection accessory of sampling and wire transmission or wireless transmission energy information (test side 12 ' or/and extension set); 13. signal wire transmission secondary circuit voltage drop electric energy metering error information; 14. signal wireless transmission secondary circuit voltage drop electric energy metering error information; 15. the outdoor on-the-spot and user pulpit boundary of signal; 16. the secondary circuit voltage drop electric energy metering error information of signal sampling; 17. controller, microprocessor or single-chip microcomputer etc. in this way; 18. mould/number conversion circuit; 19. photoelectric isolating circuit (going out); 20. difference amplification output circuit; 21. difference is amplified input circuit; 22. photoelectric isolating circuit (going into); 23. digital signal processing module (a); 24. interface circuit (a); 25. wireless data sending communication module (a); 26. wireless data sending communication module (b); 27. interface circuit (b); 28. digital signal processing module (b); 29. digital modulation circuit; 30. frequency changer circuit; 31. amplification transtation mission circuit; 32. receive and frequency changer circuit; 33. digital demodulating circuit.
Five. specific embodiments
Non-limiting examples of the present utility model is as follows:
Embodiment one. the measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device
The measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device that this is routine, be the device of the electric energy metering error that caused of real-time online, long term monitoring high voltage potential transformer secondary circuit voltage drop, the concrete structure of this example device is united by Fig. 1~Fig. 6 and is illustrated.This example device main body part (11 among each figure) includes the mechanism and the structure of high-voltage electric energy measurement or detection, includes as it: Instrument shell, panel with and the interior electric energy metrical or the electronic circuit of detection etc.Mechanism and structure about electric energy metrical or detection, there is all available existing public technology contents of which mechanism and structure to solve and design, electric power meter in-situs tester that is ZL200420016518.6 as the patent No. etc. be exactly the first-selection of this measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device with reference to the sample list, needn't state more.This apparatus features is: 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.Described this device 11 must have at least one or more than one (as two or three etc.) can be real-time, error free or error can detect the detection accessory 12 of electric energy metrical information with ignoring, described detection accessory is that test side 12 is ' or/and this device of extension set 12:a. has test side 12 ' and the cable of at least one detection electric energy metrical information.In metering, become error free or error little of can ignoring, this just require test side 12 ' and cable must have fixing structure and fixing known detection error amount and with its deduction, become error free or error little of ignoring.Or/and the device 11 that b. should example has the mechanism 12 that at least one real-time, error free or error can be ignored the ground electric energy metrical information that wire transmission detected.C. device 11 that should example has the mechanism 12 that at least one real-time, error free or error can be ignored the ground electric energy metrical information that wireless transmission detected.Mechanism among above b, the c forms by electronic mechanism, this mechanism is and this device main body part 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 apparatus main body part, constitute the extension set 12 of this device, this extension set is 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.Described real-time, error free or error can ignore ground wire transmission or wireless transmission is meant: the wire transmission of this device or wireless transmission extension set 12 sampling or the electric energy metrical information that detect through error free after the digitized processing or error little of being pooled on this device 11 with ignoring.Also to point out: the device 11 of this example be have simultaneously the test side 12 of detecting electric energy metrical information ', the structure of the extension set 12 each (totally three) of the extension set 12 of the electric energy metrical information that detects of wire transmission, electric energy metrical information that wireless transmission detects.As shown in Figure 2: at least one of the device of this example 11 bands detect electric energy metrical information test side 12 ' structure be: detect the cable that input ends connect and the sample detecting end of end thereof with this example device 11, its sample detecting end in this way directly and the union end of voltage, electric current three-phase secondary cable, it is higher to carry out sampling precision like this, perhaps current sample also can adopt split core type current transformer etc. to carry out, no longer stating more.Detection cable and sample detecting end that the device 11 of this example has at least one test side 12 of detecting electric energy metrical information ' detailed structure be: this test side 12 ' have fixing structure, if any fixing build-out and detection termination of fixing and electric parameter structure etc., like this this test side 12 ' the detection error that when detecting electric energy metrical information, causes be fix with known, can be with its deduction in detection, in metering, become error free or error little of ignoring.As shown in Fig. 3, Fig. 4: the device 11 of this example has the split of the electric energy metrical information that at least one wire transmission detects or divides machine mechanism 12, and the structure of the mechanism of the electric energy metrical information that 11 wire transmission of its extension set 12 and this example device detect is: the sample circuit-controller 17 of electric energy metrical information control mould/the input circuit function connects composition for number conversion circuit 18--transmission circuit and transmission yarn--interface circuit and connector--.The sample unit of its sample circuit can be arranged on the section start end (7 sampling end) of tested secondary circuit, it is the secondary electric energy metrical intelligence sample position at PT place, its sample unit in this way directly and the union end of voltage, electric current three-phase secondary cable, the 16 signals electric energy metrical information of sampling among the figure.To the moving connector of interface circuit, constitute the wire transmission extension set 12 of this example device 11, mechanism's union end is gone in the output that its moving connector is this wire transmission extension set 12, and it decides the electric energy metrical input circuit that connector constitutes this example device 11.The detailed structure that the device 11 of this example has the extension set 12 of the electric energy metrical information that at least one wire transmission detects has: the structure of the mechanism of the electric energy metrical information that this routine wire transmission detects is connected one by one and is formed by mould/number conversion circuit 18, photoelectric isolating circuit (going out) 19, differential output circuit 20, transmission circuit, difference input circuit 21, photoelectric isolating circuit (going into) 22, the input circuit of sample circuit, controller 17 controls.All there is the mould/number conversion circuit 18 of digitized processing mechanism controls device 17 controls in the mechanism of the electric energy metrical information that this example wire transmission detects, error free then or error little to can be with ignoring with wire transmission the electric energy metrical information aggregating that detects to this example device 11.The electronic circuit spare design that each circuit of the mechanism of the electric energy metrical information that this example wire transmission detects 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.As Fig. 5, shown in Fig. 6: the device 11 of this example has the split or the branch machine mechanism 12 of the electric energy metrical information of at least one wireless transmission detection, the structure of the mechanism of the electric energy metrical information that the wireless transmission that its extension set 12 and this example device are 11/reception detects is: the sample circuit of electric energy metrical information, mould/number conversion the circuit 18 of controller 17 controls, transtation mission circuit and transmitting antenna function thereof connect the extension set of the electric energy metrical information of forming the wireless transmission detection, the sample unit of its sample circuit can be arranged on the section start end of tested secondary circuit, it is the voltage measurement at PT place, the electric current metering intelligence sample position at CT place, the direct in this way and voltage of its sample unit, the union end of electric current three-phase secondary cable, 16 signal sampling electric energy metrical information among the figure.This example device 11 also must corresponding be provided with the mechanism of the electric energy metrical information of wireless receiving detection, the mechanism of the electric energy metrical information that this routine wireless receiving detects is arranged on these example device 11 main parts, connected and formed by the receiving circuit of electric energy metrical information and receiving antenna thereof, amplifying circuit, input circuit function, its input circuit promptly is the input circuit of the electric energy metrical information of this device.The detailed structure that the device 11 of this example has the extension set 12 of the electric energy metrical information that at least one wireless transmission detects is: the structure of the extension set of the electric energy metrical information that this routine wireless transmission detects is connected by mould/number conversion circuit 18, digital signal processing module (a) 23, interface circuit (a) 24, wireless data sending communication module (a) 25 and the transmitting antenna function thereof of sample circuit, controller 17 controls and forms; The structure that this corresponding example device 11 must have the mechanism of the electric energy metrical information that wireless receiving detects is: connected and formed by wireless data sending communication module (b) 26 and receiving antenna thereof, interface circuit (b) 27, digital signal processing module (b) 28, input circuit function.The structure of the mechanism of the electric energy metrical information of this example wireless transmission detection all has the mould/number conversion circuit 18 of digitized processing mechanism controls device 17 controls, and error free then or error little of installing the electric energy metrical information aggregating that detects on 11 to this with wireless transmission with ignoring.The electronic circuit spare design that each circuit of the mechanism of the electric energy metrical information that this example wireless transmission detects 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.The detection accessory of this device 11 has: test side 12 ', the extension set 12 of the extension set 12 of the electric energy metrical information that detects of wire transmission, electric energy metrical information that wireless transmission detects.In Fig. 1, illustrate: 13 signal wire transmission electric energy metrical information, 14 signal wireless transmission electric energy metrical information, outdoor scene of 15 signals and the boundary of user pulpit.
The operating process of the measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device 11 that this is routine is as follows: by the electric energy information (8 of metering of measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device or detection user electric energy meter input end, 9 sampling ends), placing the detection accessory of this example device 11 of section start end 7 sampling ends of high voltage potential transformer 1 secondary circuit (is the extension set 12 of electric energy metrical instrument 11, or the information of voltage of the PT section start end (7 sampling end) of the secondary circuit of section is at one time measured or detected in test side 12 ') simultaneously, and it is real-time by its detection accessory 12, error free or error can ignore with the mode of wire transmission or wireless transmission/reception sampling or the electric energy metrical information aggregating that detects to this example device 11, differences of this example device 11 and its extension set 12 common metering electric energy promptly are the composition errors of this secondary circuit electric energy metrical.The course of work is intact.
Embodiment two. the measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device
The measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device that this is routine is the device of the electric energy metering error that caused of real-time online, long term monitoring high voltage potential transformer secondary circuit voltage drop, and its concrete structure is illustrated by Fig. 2.This device main body part (among Fig. 2 11) includes the mechanism and the structure of high-voltage electric energy measurement or detection, has which all available existing public technology contents to solve and design about the mechanism and the structure of high-voltage electric energy measurement or detection, needn't state more.The characteristics of this example device 11 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.The device 11 of this example can have the test side 12 that one or two real-time, error free or error can detect electric energy metrical information with ignoring, and ' and cable, one of them can make spare part.The test side 12 of the detection electric energy metrical information of this example ' structure be: have with this example device 11 and detect the cable that input ends connect and the sample detecting end of end thereof, its sample detecting end in this way directly and the union end of voltage three-phase secondary cable, joint Terminal all is a known technology, and it is higher to carry out sampling precision like this.The detection cable and the sample detecting end of this routine test side 12 ' detailed structure be: this test side 12 ' have fixing structure, if any fixing build-out and fixing detection termination and the electrical structure parameter of fixing etc., like this this test side 12 ' the detection error that when detecting electric energy metrical information, causes be fix with known, can be with its deduction in detection, in metering, become error free or error little of ignoring.What all the other were not stated is same as described in the embodiment one entirely, no longer repeats.
Embodiment three. the measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device
The measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device that this is routine is the device of the electric energy metering error that caused of real-time online, long term monitoring high voltage potential transformer secondary circuit voltage drop, and its concrete structure is illustrated by Fig. 3.This device main body part (among the figure 11) includes the mechanism and the structure of high-voltage electric energy measurement or detection, has which all available existing public technology contents to solve and design about the mechanism and the structure of high-voltage electric energy measurement or detection, needn't state more.The characteristics of this example device 11 are: the device 11 of this example can have the wire transmission extension set 12 that one or two real-time, error free or error can be ignored the electric energy metrical information that ground wire transmission detects, and the structure of the electric energy metrical information wire transmission extension set 12 of the detection of this example is connected one by one and formed by mould/number conversion circuit 18, electrical-optical conversion interface circuit, Transmission Fibers, opto-electronic conversion interface circuit, amplifying circuit, the input circuit of sample circuit, controller 17 controls.This routine wire transmission extension set 12 all has the mould/number conversion circuit 18 of digitized processing mechanism controls device 17 control, can be error free or error little to can be with ignoring with wire transmission the electric energy metrical information aggregating that detects to this example device 11.The electronic circuit spare design that each circuit of the wire transmission extension set 12 that this is routine 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 two, no longer repeat.
Embodiment four. the measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device
The measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device that this is routine, be the device of the electric energy metering error that caused of real-time online, long term monitoring high voltage potential transformer secondary circuit voltage drop, its concrete structure is united by Fig. 5, Fig. 7 and is illustrated.This device main body part (among two figure 11) includes the mechanism and the structure of high-voltage electric energy measurement or detection, has which all available existing public technology contents to solve and design about the mechanism and the structure of high-voltage electric energy measurement or detection, needn't state more.The characteristics of this example device 11 are: the device 11 of this example can have the wireless transmission extension set 12 that one or two real-time, error free or error can be ignored the electric energy metrical information that the ground wireless transmission detects, the electric energy metrical information wireless of the detection of this example send the structure of extension set 12 by mould/number conversion circuit 18, digital modulation circuit 29, the frequency changer circuit 30 of sample circuit, controller 17 controls, amplify transtation mission circuit 31 and transmitting antenna function thereof and connect and forms; This corresponding example device 11 must have the mechanism of the electric energy metrical information that wireless receiving detects and structure and connect and form by receiving with frequency changer circuit 32 and receiving antenna thereof, digital demodulating circuit 33, input circuit function.This routine wireless transmission extension set 12 all has the mould/number conversion circuit 18 of digitized processing mechanism controls device 17 control, can be error free or error little to can ignore with the wireless transmission mode the electric energy metrical information aggregating that detects to this example device 11.The electronic circuit spare design that each circuit of the wireless transmission extension set 12 that this is routine 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 three, no longer repeat.
Embodiment five. the measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device
The measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device that this is routine, be the device of the electric energy metering error that caused of real-time online, long term monitoring high voltage potential transformer secondary circuit voltage drop, its concrete structure is united by Fig. 2 and Fig. 3 and is illustrated.This device main body part (among two figure 11) has the mechanism and the structure of electric energy metrical or detection, the characteristics of this example device 11 are: one, this routine electric energy metrical instrument 11 are to be that the electric power meter in-situs tester of ZL200420016518.6 is a model electric energy metrical instrument 11 that make, that relate to high pressure range with the patent No.; Its two, it is real-time, error free that the device 11 of this example can have 12, one of two detection accessory or the error detection cable and the sample detecting end that can detect the test side 12 ' and cable, this test side 12 ' of electric energy metrical information has fixing structure with ignoring.One be real-time, error free or error can ignore the extension set 12 of the ground electric energy metrical information that wire transmission detected.The structure of the extension set 12 of the electric energy metrical information that this wire transmission detects is connected one by one and is formed by digital sample circuit, digital amplifying circuit, transmission circuit, interface circuit, digital input circuit, and the digital transmission circuit of the extension set 12 of the electric energy metrical information that this wire transmission detects directly error free or error little of being pooled to the electric energy metrical information that detects on this device 11 with wire transmission with ignoring.All the other are not stated is same as among the embodiment one entirely~described in the embodiment four, no longer repeat.
Embodiment six. the measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device
The measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device that this is routine, be the device of the electric energy metering error that caused of real-time online, long term monitoring high voltage potential transformer secondary circuit voltage drop, its concrete structure is united by Fig. 2 and Fig. 5 and is illustrated.This device main body part (among two figure 11) includes the mechanism and the structure of electric energy metrical or detection, the characteristics of this example device 11 are: it is real-time, error free that the device 11 of this example can have 12: one of two detection accessory or the error detection cable and the sample detecting end that can detect the test side 12 ' and cable, this test side 12 ' of electric energy metrical information has fixing structure with ignoring.One be real-time, error free or error can ignore the extension set 12 of the ground electric energy metrical information that wireless transmission detected.The structure of the extension set 12 of the electric energy metrical information that this wireless transmission detects is connected by digital sample circuit, digital amplifying circuit and transmitting antenna function thereof and forms.This corresponding device 11 also has the mechanism and the structure of the electric energy metrical information of wireless receiving detection: digital received amplifying circuit and receiving antenna thereof, digital input circuit function connect to be formed.They are not shown specifically with figure.The digital circuit structure of the extension set 12 of the electric energy metrical information that this wireless transmission detects directly error free or error little of being pooled to the electric energy metrical information that detects on this device 11 with wireless transmission/receive mode with ignoring.All the other are not stated is same as among the embodiment one entirely~described in the embodiment five, no longer repeat.
Embodiment seven. the measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device
The measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device that this is routine, be the device of the electric energy metering error that caused of real-time online, long term monitoring high voltage potential transformer secondary circuit voltage drop, its concrete structure is united by Fig. 3 and Fig. 5 and is illustrated.The characteristics of this example device 11 are: the device 11 of this example can have 12: one of two detection accessory be real-time, error free or error can ignore the extension set 12 of the ground electric energy metrical information that wire transmission detected, the structure of the mechanism of the electric energy metrical information that this routine wire transmission detects is to be made of digital output end one wire transmission cable one digital input end.One be real-time, error free or error can ignore the extension set 12 of the ground electric energy metrical information that wireless transmission detected.This corresponding example device 11 also has the mechanism and the structure of the electric energy metrical information of wireless receiving detection.The extension set 12 of the electric energy metrical information that the extension set 12 of the electric energy metrical information that this routine wire transmission detects and wireless transmission detect all has digital circuit structure, and directly error free or error little of being pooled to the electric energy metrical information that detects on this device with wire transmission, wireless transmission with ignoring.The electronic circuit spare design that each circuit of the extension set 12 of the electric energy metrical information that the extension set 12 of the electric energy metrical information that this routine wire transmission detects and wireless transmission detect 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.What all the other were not stated is same as described in embodiment one~embodiment six entirely, no longer repeats.
Embodiment eight. the measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device
The measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device that this is routine, be the device of the electric energy metering error that caused of real-time online, long term monitoring high voltage potential transformer secondary circuit voltage drop, its concrete structure is united by Fig. 2~Fig. 7 and is illustrated.The characteristics of this example device 11 are: the device 11 of this example can have three kinds of detection accessory 12: a kind of is real-time, error free or error can detect test side 12 ' and the cable of electric energy metrical information with ignoring, ' there are fixing build-out and fixing detection termination and the electrical structure parameter of fixing etc. in this routine test side 12, the detection error that when detecting electric energy metrical information, causes be fix with known, can be with its deduction in detection, in metering, become error free or error little of ignoring.A kind of be real-time, error free or error can ignore the extension set 12 of the ground electric energy metrical information that wire transmission detected.A kind of be real-time, error free or error can ignore the extension set 12 of the ground electric energy metrical information that wireless transmission detected.This corresponding example device 11 also has the mechanism and the structure of the electric energy metrical information of wireless receiving detection.The electric energy metrical information extension set 12 that the extension set 12 of the electric energy metrical information that this routine wire transmission detects and wireless transmission detect all has digital circuit structure, and directly error free or error little of being pooled to the electric energy metrical information that detects on this device 11 with wire transmission, wireless transmission/receive mode with ignoring.Structure described in above in this way each embodiment of the various structures that the device 11 of this example can have three kinds of detection accessory 12 is described in detail in each embodiment, no longer repeats.The electronic circuit spare design that each circuit of the extension set 12 of the electric energy metrical information that the extension set 12 of the electric energy metrical information that this routine wire transmission detects and wireless transmission detect 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 seven, no longer repeat.

Claims (3)

1. measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device, this device main body partly includes the mechanism and the structure of high-voltage electric energy measurement or detection, be characterised in that: described this device 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, described detection accessory be the test side or/and extension set:
A. this device is or/and have test side and the cable thereof that at least one detects electric energy metrical information; Or/and,
B. this device is or/and have at least one wire transmission or/and the mechanism of the electric energy metrical information that wireless transmission detected, this mechanism forms by electronic mechanism, this mechanism is and this device main body part 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 apparatus main body part, constitute the extension set of this device, this extension set is made up of housing and interior electronic mechanism thereof.
2. measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device according to claim 1 is characterised in that:
A. described this device is or/and have at least one structure that detects the test side of electric energy metrical information and be: the cable that connects with this device detection input end and the electric energy metrical sample detecting end of end thereof;
B. described this device is or/and have the split or the branch machine mechanism of the electric energy metrical information of at least one wire transmission detection, the detailed structure of the mechanism of the electric energy metrical information that wire transmission detects between its extension set and this device is:--the input circuit function connects composition to the mould/number conversion circuit of the sample circuit of electric energy metrical information-controller control for transmission circuit and transmission yarn--interface circuit and connector--, 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 electric energy metrical information;
C. described this device is or/and have the split of the electric energy metrical information that at least one wireless transmission detects or divide machine mechanism, and the detailed structure of the mechanism of the electric energy metrical information that its extension set and wireless transmission/receptions between this device detect is: mould/number conversion circuit, transtation mission circuit and the transmitting antenna function thereof that the sample circuit of electric energy metrical information, controller are controlled connects the extension set of the electric energy metrical information of composition wireless transmission detection; This device also must corresponding be provided with the mechanism of the electric energy metrical information of wireless receiving detection, the mechanism of the electric energy metrical information that described wireless receiving detects is arranged on this apparatus main body part, connected and formed by the receiving circuit of electric energy metrical information and receiving antenna thereof, amplifying circuit, input circuit function, its input circuit promptly is the input circuit of the electric energy metrical information of this device.
3. measuring error of voltage drop electric energy at secondary loop of voltage transformer in high voltage real-time monitoring device according to claim 1 is characterised in that:
1). described this device is or/and have at least one detailed structure that detects the test side of electric energy metrical information and be: the detection cable and the sample detecting end of this test side have fixing structure;
2). described this device is or/and have the extension set of the electric energy metrical information that at least one wire transmission detects, and the detailed structure of the mechanism of the electric energy metrical information of wire transmission detection is between its extension set and this device:
The structure of the mechanism of the electric energy metrical 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,
The structure of the mechanism of the electric energy metrical information that b. described wire transmission detects is connected one by one and is formed 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,
The structure of the mechanism of the electric energy metrical information that c. described wire transmission detects is connected one by one and is formed by digital sample circuit, digital amplifying circuit, transmission circuit, interface circuit, digital input circuit; Perhaps,
The structure of the mechanism of the electric energy metrical information that d. described wire transmission detects is by digital output end--and wire transmission cable-digital input end constitutes;
3). described this device is or/and have the extension set of the electric energy metrical information that at least one wireless transmission detects, and the detailed structure of the mechanism of the electric energy metrical information of wireless transmission between its extension set and this device/reception detection is:
The structure of the extension set of the electric energy metrical information that a. described wireless transmission detects is made up of mould/number conversion circuit, digital signal processing module, wireless data sending communication module and the connection of transmitting antenna function thereof of sample circuit, controller control; This corresponding device must have the mechanism of the electric energy metrical information that wireless receiving detects 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,
The structure of the extension set of the electric energy metrical information that b. described wireless transmission detects is made up of mould/number conversion circuit, digital modulation circuit, frequency conversion transtation mission circuit and the connection of transmitting antenna function thereof of sample circuit, controller control; This corresponding device must have the mechanism of the electric energy metrical information that wireless receiving detects and structure and be connected and formed by reception and frequency changer circuit and receiving antenna thereof, digital demodulating circuit, input circuit function; Perhaps,
The structure of the extension set of the electric energy metrical information that c. described wireless transmission detects is connected by digital sample circuit, digital amplifying circuit and transmitting antenna function thereof and forms; This corresponding device must have the mechanism of the electric energy metrical 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.
CNU2007201281332U 2007-07-20 2007-07-20 High voltage potential transformer secondary circuit pressure-drop electric energy metering error real time monitoring device CN201110893Y (en)

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Application Number Priority Date Filing Date Title
CNU2007201281332U CN201110893Y (en) 2007-07-20 2007-07-20 High voltage potential transformer secondary circuit pressure-drop electric energy metering error real time monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007201281332U CN201110893Y (en) 2007-07-20 2007-07-20 High voltage potential transformer secondary circuit pressure-drop electric energy metering error real time monitoring device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103454517A (en) * 2013-06-26 2013-12-18 广东电网公司佛山供电局 Method for online monitoring capacitive voltage transformers
CN106226727A (en) * 2016-09-19 2016-12-14 国网天津市电力公司 User's electric energy metering error on-line checking analyzes system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103454517A (en) * 2013-06-26 2013-12-18 广东电网公司佛山供电局 Method for online monitoring capacitive voltage transformers
CN103454517B (en) * 2013-06-26 2016-05-11 广东电网公司佛山供电局 Capacitance type potential transformer on-line monitoring method
CN106226727A (en) * 2016-09-19 2016-12-14 国网天津市电力公司 User's electric energy metering error on-line checking analyzes system and method

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