CN108983004A - The mobile 10kV line loss metering device of one or two fusions - Google Patents
The mobile 10kV line loss metering device of one or two fusions Download PDFInfo
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- CN108983004A CN108983004A CN201810887413.4A CN201810887413A CN108983004A CN 108983004 A CN108983004 A CN 108983004A CN 201810887413 A CN201810887413 A CN 201810887413A CN 108983004 A CN108983004 A CN 108983004A
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- phase
- signal
- metering device
- mobile
- line loss
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The present invention provides a kind of mobile 10kV line loss metering device of one or two fusions, belongs to high-tension line electrical energy measurement field.Described device includes two metering devices of A phase and C phase, and the A phase and C phase are connected with B respectively, and B phase is fixing end；The A phase and B phase, B phase and C phase separately constitute three-stage U-shaped structure, and the A phase, C two-phase port are respectively equipped with open type electronics CT, B phase a port and are equipped with opening, are respectively equipped with bayonet iron core at the A phase, B phase, C phase port.The present invention has lightweight and portable in volume, and without assisting fitting, no secondary connection can charge installation, convenient and efficient, and directly can locally acquire simultaneously teletransmission, is not easy to distort, has the characteristics that mobility is strong, measurement error is accurate.
Description
Technical field
The present invention relates to a kind of mobile 10kV line loss metering devices of one or two fusions, belong to high-tension line electrical energy measurement
Field.
Background technique
The metering and measurement of 10kV overhead line both at home and abroad generallys use the traditional mode of massive quantity power supply and measurement: i.e. Current Mutual Inductance at present
Device (CT), voltage transformer (PT), low -voltage Watt -hour meter are mounted in a whole batch meter.Electricity based on this working principle
Can table there are volumes that big, weight reaches 50kg or more, it is necessary to the installation that has a power failure averagely installs 1 about 4 hours, thereby results in power supply enterprise
Industry undertakes the electric power of waste, power consumer is forced to stop production and cause economic loss serious；CT, PT, electric energy meter follow simultaneously
Be three different calibration standards systems, cause the uncertainty of a combination thereof error bigger than normal, influence route line loss metering and system
Meter.High-voltage meter under this mode is unfavorable for the measure monitor of existing line electric energy.In addition, this high-voltage meter is installed
After be difficult to dismantle, poor mobility.
Summary of the invention
The object of the present invention is to provide a kind of mobile 10kV line loss metering devices of one or two fusions, by traditional high pressure
PT, CT, low pressure table pack one or two times fusions, integrated electronics CT and electronics PT, volume is lighter, without assisting fitting,
Without secondary connection, installation can be charged, it is convenient and efficient, and simultaneously teletransmission directly can be locally acquired, it is not easy to distort, there is mobility
Strong feature, measurement error are accurate.
To solve the above problems, the present invention provides a kind of mobile 10kV line loss metering device of one or two fusions, it is described
Device includes two metering devices of A phase and C phase, and the A phase and C phase are connected with B respectively, and B phase is fixing end；The A phase and B
Phase, B phase and C phase separately constitute three-stage U-shaped structure, and the A phase, C two-phase port are respectively equipped with open type electronics CT, B a phase
Port is equipped with opening, is respectively equipped with bayonet iron core at the A phase, B phase, C phase port.
Preferably, it is 50~240mm that the opening of the open type electronics CT, which can meet line footpath,2Overhead transmission line.
Preferably, device integrally uses the insulating materials of degree of protection IP67 to encapsulate.
Preferably, connecting shaft is equipped between A phase and B phase, two insulation butterfly spiral shells are used at connecting shaft both ends with A phase, B phase respectively
Mother's connection, the A phase, connecting shaft, B phase composition three-stage U-shaped structure；The A is harmonious B phase both ends spacing can be by adjusting butterfly
Nut adjustment, the adjustable range is in 630mm~1240mm；Similarly, apparatus structure is filled with A phase and B phase between B phase and C phase
It sets consistent.
Preferably, the upper end electronics CT is equipped with rain-proof eaves, and the inside electronics CT and fixed end opening are equipped with intensive puncture needle, and have
Rubber mat protection.
Preferably, the lower end electronics CT is integral control circuit, and electronics PT is integrated in inside circuit.
Preferably, GPRS module is embedded in metering device.
Preferably, electronics CT obtains current sampling signal, amplifies current signal by the difference electric discharge road of chip interior, puts
Signal after big is converted into the digital signal being proportional to by A/D, removes using digital phase correcting and high-pass filtering
The input terminal of DC component in signal subsequently into digital multiplier；
Electronics PT obtains voltage sampling signal by way of electric resistance partial pressure, by the difference electric discharge road of chip interior by signal
Amplification, the digital signal being proportional to is converted into using A/D, another input terminal and electric current into digital multiplier are logical
The signal in road carries out multiplying, completes the instantaneous power measurement of measured electric energy；
Multiplier exports instantaneous power and carries out Integral Processing into " number/frequency " conversion by wave digital lowpass filter
Device, is transformed into the frequency pulse signal proportional to measured electric energy mean power, and the frequency pulse signal is divided into high frequency arteries and veins
Signal and low frequency pulse signal are rushed, wherein high-frequency impulse is output to verification and microprocessor interface, and low-frequency pulse pin is hanging；Arteries and veins
It rushes input signal and is input to microcontroller after photoelectric conversion, after microcontroller receives pulse signal, by input arteries and veins
Number is rushed to be added up and realized according to meter constant size to electrical energy measurement；Wirelessly by microcontroller, A is obtained
The energy information of phase and C phase, and COMPREHENSIVE CALCULATING obtains total electric energy；It is used by microcontroller by GPRS/4G communication mode and intelligence
Electric management system establishes wireless network connection, realizes the remote meter reading and load monitoring of high-voltage electric energy meter.
Preferably, using monoblock type error checking, voltage and current acquisition, subitem electric energy operation, comprehensive electric energy operation is complete
Portion's integrated design is completed in integral control circuit, realizes that the difference of the comprehensive electric energy operation result being calculated and standard value is exactly
Device global error.
The invention has the advantages that:
The invention has the following advantages that 1. are designed using U-shaped structure, " distribution intelligent terminal " is minimized, overall weight
Less than 12kg, without any wiring, electronics CT opening blocks overhead line automatically, and Direct perforantes take electricity that need not power off, can charge installation,
It is saved by installing a metering device 4 hours originally to only needing can be completed within 20 minutes on time, manpower and material resources is greatly saved,
Improve efficiency.
2.GPRS module is embedded in high pressure gauge, directly local acquisition and teletransmission, and is not easy to distort.
3. being different from traditional voltage, electric current, electric energy meter, it then follows three independent calibration technologies of different standards, the present apparatus
Using monoblock type error checking, by voltage and current acquisition, subitem electric energy operation, comprehensive electric energy operation whole integrated design at one
It is completed in independent component, realizes that the difference of the comprehensive electric energy operation result being calculated and standard value is exactly device global error；Solution
The problem of certainly conventional combination error can not define, combination misalignment influence amount are lower than 0.02%, and sampling is not influenced by temperature environment, is measured
Cheng Kuan reaches 0.5s grades.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the horizontal positioned structure chart of the present invention；
In figure: 1, electronics CT；2, rain-proof eaves；3, intensive puncture needle；4, wing nut；5 fixing ends；6, metering device；7,
Bayonet iron core；8, high pressure special isolation casing；9, it punctures and shakes hole；10, connecting shaft.
Specific embodiment
Embodiment 1:
The present invention provides a kind of mobile 10kV line loss metering device of one or two fusions, and the present invention provides one or two times a kind of
The mobile 10kV line loss metering device of fusion, described device include two metering devices 6 of A phase and C phase, the A phase and C phase point
It is not connected with B, B phase is fixing end 5；The A phase and B phase, B phase and C phase separately constitute three-stage U-shaped structure, the A phase, C
Two-phase port is respectively equipped with open type electronics CT1, B phase a port and is equipped with opening, is respectively equipped at the A phase, B phase, C phase port
Bayonet iron core 7.
Preferably, it is 50~240mm that the opening of the open type electronics CT1, which can meet line footpath,2Overhead transmission line
Preferably, device integrally uses the insulating materials of degree of protection IP67 to encapsulate, and washes in a pan friend's high pressure special isolation casing.
Preferably, connecting shaft 10 is equipped between A phase and B phase, two insulation butterflies are used at 10 both ends of connecting shaft with A phase, B phase respectively
Shape nut 4 connects, the A phase, connecting shaft 10, B phase composition three-stage U-shaped structure；The A B phase both ends spacing that is harmonious can pass through
It adjusts wing nut 4 to adjust, the adjustable range is in 630mm~1240mm；Similarly, apparatus structure and A between B phase and C phase
It is mutually consistent with B phase device.
Preferably, the upper end electronics CT1 is equipped with rain-proof eaves 2, is open on the inside of electronics CT1 with fixing end 5 and intensive puncture needle is housed
3, and have rubber mat protection.
Preferably, the lower end electronics CT1 is integral control circuit, and electronics PT is integrated in inside circuit.
Preferably, GPRS module is embedded in metering device.
Preferably, electronics CT1 obtains current sampling signal, is amplified current signal by the difference electric discharge road of chip interior,
Amplified signal is converted into the digital signal being proportional to by A/D, goes using digital phase correcting and high-pass filtering
Except the DC component in signal is subsequently into an input terminal of digital multiplier；
Electronics PT obtains voltage sampling signal by way of electric resistance partial pressure, by the difference electric discharge road of chip interior by signal
Amplification, the digital signal being proportional to is converted into using A/D, another input terminal and electric current into digital multiplier are logical
The signal in road carries out multiplying, completes the instantaneous power measurement of measured electric energy；
Multiplier exports instantaneous power and carries out Integral Processing into " number/frequency " conversion by wave digital lowpass filter
Device, is transformed into the frequency pulse signal proportional to measured electric energy mean power, and the frequency pulse signal is divided into high frequency arteries and veins
Signal and low frequency pulse signal are rushed, wherein high-frequency impulse is output to verification and microprocessor interface, and low-frequency pulse pin is hanging；Arteries and veins
It rushes input signal and is input to microcontroller after photoelectric conversion, after microcontroller receives pulse signal, by input arteries and veins
Number is rushed to be added up and realized according to meter constant size to electrical energy measurement；Wirelessly by microcontroller, A is obtained
The energy information of phase and C phase, and COMPREHENSIVE CALCULATING obtains total electric energy；It is used by microcontroller by GPRS/4G communication mode and intelligence
Electric management system establishes wireless network connection, realizes the remote meter reading and load monitoring of high-voltage electric energy meter.
Preferably, using monoblock type error checking, voltage and current acquisition, subitem electric energy operation, comprehensive electric energy operation is complete
Portion's integrated design is completed in integral control circuit, realizes that the difference of the comprehensive electric energy operation result being calculated and standard value is exactly
Device global error.
When installation, device direction is adjusted, by taking A phase and B phase mounting means as an example, the side court with " A ", " B " mark
To load side, 5 bayonet iron core 7 of fixing end is then opened, device is hung over into B phase conductor；The end A bayonet iron core 7 is opened again, hangs over A
Then phase conductor is shaken in hole 9 from puncture using installation handle and is tightened, punctured to the end A, and is using specific detectors detection
No to contact with high-voltage conducting wires, the bright expression of indicator light punctures in place, then tightens, punctures to the end B.If line spacing is longer, can
It unscrews wing nut 4 and carries out length adjustment.B phase, C the phase mode that is connected with A phase, B are identical
The present invention is designed using U-shaped structure, and " distribution intelligent terminal " is minimized, and overall weight is less than 12kg, open C T
Automatically overhead line is blocked, Direct perforantes take electricity, without power-off, installation can be charged, by installing a metering device originally on the time
It saves to only needing can be completed within 20 minutes within 4 hours, manpower and material resources is greatly saved, improve efficiency.
It is different from traditional voltage, electric current, electric energy meter, it then follows three independent calibration technologies of different standards, the present apparatus are adopted
It is with monoblock type error checking, voltage and current acquisition, subitem electric energy operation, comprehensive electric energy operation whole integrated design is only at one
It is completed in vertical element, realizes that the difference of the comprehensive electric energy operation result being calculated and standard value is exactly device global error；It solves
The problem of conventional combination error can not define, combination misalignment influence amount are lower than 0.02%, and sampling is not influenced by temperature environment, range
Width reaches 0.5s grades.
Claims (9)
1. a kind of mobile 10kV line loss metering device of one or two fusions, which is characterized in that described device includes A phase and C phase
Two metering devices, the A phase and C phase are connected with B respectively, and B phase is fixing end；The A phase and B phase, B phase are distinguished with C phase
Three-stage U-shaped structure is formed, the A phase, C two-phase port are respectively equipped with open type electronics CT, B phase a port and are equipped with opening, institute
It states and is respectively equipped with bayonet iron core at A phase, B phase, C phase port.
2. a kind of mobile 10kV line loss metering device of one or two fusions according to claim 1, which is characterized in that institute
It is 50~240mm that the opening for stating open type electronics CT, which can meet line footpath,2Overhead transmission line.
3. a kind of mobile 10kV line loss metering device of one or two fusions according to claim 1, which is characterized in that dress
The whole insulating materials using degree of protection IP67 is set to encapsulate.
4. a kind of mobile 10kV line loss metering device of one or two fusions according to claim 1, which is characterized in that A
Connecting shaft is mutually equipped between B phase, connecting shaft both ends are connect with A phase, B phase with two insulation wing nuts respectively, the A phase,
Connecting shaft, B phase composition three-stage U-shaped structure；The A is harmonious B phase both ends spacing can be by adjusting wing nut adjusting, the tune
Adjusting range is in 630mm~1240mm；Similarly, apparatus structure is consistent with A phase and B phase device between B phase and C phase.
5. a kind of mobile 10kV line loss metering device of one or two fusions according to claim 1, which is characterized in that electricity
The sub- upper end CT is equipped with rain-proof eaves, and the inside electronics CT and fixed end opening are equipped with intensive puncture needle, and have rubber mat protection.
6. a kind of mobile 10kV line loss metering device of one or two fusions according to claim 1, which is characterized in that electricity
The sub- lower end CT is integral control circuit, and electronics PT is integrated in inside circuit.
7. a kind of mobile 10kV line loss metering device of one or two fusions according to claim 1, which is characterized in that
GPRS module is embedded in metering device.
8. the mobile 10kV line loss metering device of one kind one or two times fusions described in any one according to claim 1~7, institute
State method are as follows: electronics CT obtains current sampling signal, amplifies current signal by the difference electric discharge road of chip interior, amplified
Signal is converted into the digital signal being proportional to by A/D, using in digital phase correcting and high-pass filtering removal signal
DC component subsequently into digital multiplier an input terminal；
Electronics PT obtains voltage sampling signal by way of electric resistance partial pressure, is put signal by the difference electric discharge road of chip interior
Greatly, it is converted into the digital signal being proportional to using A/D, into another input terminal and current channel of digital multiplier
Signal carry out multiplying, complete the instantaneous power measurement of measured electric energy；
Multiplier exports instantaneous power and carries out Integral Processing into " number/frequency " converter by wave digital lowpass filter, becomes
Change the frequency pulse signal proportional to measured electric energy mean power into, the frequency pulse signal is divided into high-frequency pulse signal
And low frequency pulse signal, wherein high-frequency impulse is output to verification and microprocessor interface, and low-frequency pulse pin is hanging；Pulse input
Signal is input to microcontroller after photoelectric conversion, after microcontroller receives pulse signal, by input pulse number
Added up and is realized according to meter constant size to electrical energy measurement；Wirelessly by microcontroller, A phase and C are obtained
The energy information of phase, and COMPREHENSIVE CALCULATING obtains total electric energy；GPRS/4G communication mode and intelligent power management are passed through by microcontroller
System establishes wireless network connection, realizes the remote meter reading and load monitoring of high-voltage electric energy meter.
9. the mobile 10kV line loss metering device of one kind one or two times fusions described in any one according to claim 1~7,
It is characterized in that, using monoblock type error checking, voltage and current acquisition, subitem electric energy operation, comprehensive electric energy operation is all designed
It is integrated in integral control circuit and completes, realize that the difference of the comprehensive electric energy operation result being calculated and standard value is exactly that device is whole
Body error.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810887413.4A CN108983004A (en) | 2018-08-06 | 2018-08-06 | The mobile 10kV line loss metering device of one or two fusions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810887413.4A CN108983004A (en) | 2018-08-06 | 2018-08-06 | The mobile 10kV line loss metering device of one or two fusions |
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| CN108983004A true CN108983004A (en) | 2018-12-11 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856453A (en) * | 2019-02-18 | 2019-06-07 | 国网山东省电力公司淄博供电公司 | A kind of high pressure directly takes the 10kV separated time line loss metering device of energy |
| CN110161331A (en) * | 2019-05-16 | 2019-08-23 | 李勇 | A kind of detection platform and control method merging complete set of equipments for one or two times |
| CN111257667A (en) * | 2019-12-31 | 2020-06-09 | 国网山东省电力公司淄博供电公司 | High-voltage contact energy-obtaining 10kV branching line loss metering device capable of being installed in electrified mode |
| CN113759199A (en) * | 2021-09-26 | 2021-12-07 | 淮安苏达电气有限公司 | Testing device and testing method for primary and secondary fusion equipment acting on power distribution network |
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| CN109856453A (en) * | 2019-02-18 | 2019-06-07 | 国网山东省电力公司淄博供电公司 | A kind of high pressure directly takes the 10kV separated time line loss metering device of energy |
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| CN113759199A (en) * | 2021-09-26 | 2021-12-07 | 淮安苏达电气有限公司 | Testing device and testing method for primary and secondary fusion equipment acting on power distribution network |
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| PB01 | Publication | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Xuefeng Inventor after: Hao Hongmin Inventor after: Ni Wenqiang Inventor after: Lv Dongfei Inventor after: Li Wanzhong Inventor after: Liu Wenan Inventor after: Wang Qi Inventor after: Di Ying Inventor after: Dai Yuesong Inventor after: Zhang Kun Inventor after: Kong Xiangqing Inventor before: Sun Xuefeng Inventor before: Zhang Kun Inventor before: Kong Xiangqing Inventor before: Lv Dongfei Inventor before: Li Wanzhong Inventor before: Liu Wenan Inventor before: Wang Qi Inventor before: Di Ying Inventor before: Hao Hongmin Inventor before: Ni Wenqiang Inventor before: Dai Yuesong |
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Application publication date: 20181211 |