CN202886584U - Novel integrated error checking device of high-voltage energy measurement device - Google Patents
Novel integrated error checking device of high-voltage energy measurement device Download PDFInfo
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- CN202886584U CN202886584U CN 201220468770 CN201220468770U CN202886584U CN 202886584 U CN202886584 U CN 202886584U CN 201220468770 CN201220468770 CN 201220468770 CN 201220468770 U CN201220468770 U CN 201220468770U CN 202886584 U CN202886584 U CN 202886584U
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Abstract
本实用新型提供一种新型高压电能计量装置整体误差校检装置，其包括低功率信号源、与该低功率信号源的电流输出信号连接的升流器、与该低功率信号源的电压输出信号连接的升压器、并联连接于该升流器的输出端的标准电流互感器、新型电压互感器和新型电流互感器、与该升压器的输出端的正极连接的标准电压互感器、与该标准电压互感器的输出端和该标准电流互感器的输出端连接的标准电能表、与该新型电流互感器的输出端和新型电压互感器的输出端连接的新型电能表、与该标准电能表和新型电能表连接的电能表校验台，该升流器的输出端与该升压器的输出端的正极连接。本实用新型无需提供大功率的转换电路和大体积的转换装置，减少耗能、体积和制造成本。
The utility model provides a novel overall error checking device of a high-voltage electric energy metering device, which includes a low-power signal source, a current booster connected with the current output signal of the low-power signal source, and a voltage output signal of the low-power signal source A booster connected, a standard current transformer connected in parallel to the output of the booster, a new voltage transformer and a new current transformer, a standard voltage transformer connected to the positive pole of the output of the booster, and the standard The standard electric energy meter connected to the output end of the voltage transformer and the output end of the standard current transformer, the new electric energy meter connected to the output end of the new current transformer and the output end of the new voltage transformer, and the standard electric energy meter and the output end of the new voltage transformer In the electric energy meter calibration platform connected with the novel electric energy meter, the output end of the current booster is connected with the positive pole of the output end of the booster. The utility model does not need to provide a high-power conversion circuit and a large-volume conversion device, thereby reducing energy consumption, volume and manufacturing cost.
Description
Technical field
The utility model relates to the school inspection technology of electric power metering device, is specifically related to a kind of novel high-pressure electric power meter global error school checking device.
Background technology
Traditional method for the high-voltage electric-energy meter verification is the various piece to device, comprise that voltage transformer (VT), current transformer, multifunctional electric energy meter and secondary line voltage drop of voltage mutual inductor detect respectively, obtain the error of various piece, then control the accuracy of measuring by the comprehensive error computation method.Like this by the theoretical result who calculates can not marking meter the global error precision, the measuring accuracy of high-voltage electric-energy meter integral body does not have direct detection method to determine.
In recent years, a kind of global error of high voltage energy metering installation calibration equipment has appearred, its cardinal principle is: with the little current power signal source of low pressure through synchronous boost and up-flow or be converted into high pressure (10KV) and large electric current (200A) experiment power supply, one benchmark electric energy measurement unit obtains the high-voltage great-current signal, and the standard of generation energy value, simultaneously, the verification object is to produce detection energy value after high-voltage electric-energy meter obtains the high-voltage great-current signal, then on the same group detection energy value and standard energy value are compared, obtain meritorious and reactive energy measurement error.The defective of this device is, for the little current power signal source of low pressure through boosting and up-flow or be converted into the high-voltage great-current signal, the up-flow device that boosts that need provide bulky, power consumption is huge makes that whole device power consumption is large, volume is large, cost is high.
The utility model content
In view of this, be necessary the problem mentioned for background technology, a kind of novel high-pressure electric power meter global error school checking device that reduces volume, reduces energy consumption is provided.
The technical solution of the utility model is specific as follows:
A kind of novel high-pressure electric power meter global error school checking device, it is characterized in that: it comprises the low-power signal source, the current lifting device that is connected with the current output signal in described low-power signal source, the stepup transformer that is connected with the Voltage-output signal in described low-power signal source, be connected in parallel in the standard current transformer of the output terminal of described current lifting device, novel voltage mutual inductor and novel current transformer, the standard potential transformer that is connected with the positive pole of the output terminal of described stepup transformer, with the output terminal of described standard potential transformer be connected the standard electric energy meter that the output terminal of standard current transformer is connected, be connected the electric energy meter that output terminal is connected with novel voltage mutual inductor with the output terminal of described novel current transformer, the calibration console for electric energy meter that is connected with electric energy meter with described standard electric energy meter, the output terminal of described current lifting device is connected with the positive pole of the output terminal of described stepup transformer, the negative pole of output end ground connection of described stepup transformer.
Compared to prior art, the utility model has the advantage of: with the voltage signal in low-power signal source and current signal respectively through boost and up-flow after be communicated with, for high-voltage electric-energy meter to be measured and benchmark electric energy measurement unit provide high-voltage signal and large current signal, need not to provide powerful change-over circuit, reduce power consumption, and need not to provide the conversion equipment of large volume, reduce volume and manufacturing cost.
Description of drawings
Fig. 1 is the utility model modular structure synoptic diagram.
Embodiment
As shown in Figure 1, present embodiment provides a kind of novel high-pressure electric power meter global error school checking device, it comprises the low-power signal source, the current lifting device that is connected with the current output signal in described low-power signal source, the stepup transformer that is connected with the Voltage-output signal in described low-power signal source, be connected in parallel in the standard current transformer of the output terminal of described current lifting device, novel voltage mutual inductor and novel current transformer, the standard potential transformer that is connected with the positive pole of the output terminal of described stepup transformer, with the output terminal of described standard potential transformer be connected the standard electric energy meter that the output terminal of standard current transformer is connected, be connected the electric energy meter that output terminal is connected with novel voltage mutual inductor with the output terminal of described novel current transformer, the calibration console for electric energy meter that is connected with electric energy meter with described standard electric energy meter, the output terminal of described current lifting device is connected with the positive pole of the output terminal of described stepup transformer, the negative pole of output end ground connection of described stepup transformer.Concrete, the meritorious pulse of the output terminal of described standard electric energy meter and electric energy meter and idle pulse are connected to respectively two groups of meritorious pulses of described calibration console for electric energy meter, idle pulse input end, for described calibration console for electric energy meter two groups of signals are compared, thereby take standard electric energy meter as standard electric energy meter is carried out verification.
The current signal in low-power signal source is converted into large current signal behind current lifting device, because power is constant, this signal voltage is very low; And the voltage signal in low-power signal source is converted into high voltage signal behind stepup transformer, because power is constant, this marking current value is very little.The large current signal of current lifting device output and the large voltage signal of stepup transformer output are overlapped, the small voltage value of large current signal can not affect the magnitude of voltage of large voltage signal, the little current value of large voltage signal can not affect the current value of large current signal, can satisfy the required large voltage of standard potential transformer of standard electric energy meter periphery, the large electric current that the standard electric energy mutual-inductor is required, can satisfy again the required large voltage of novel voltage mutual inductor of electric energy meter periphery, the large electric current that novel current transformer is required, need not to provide powerful change-over circuit, reduce power consumption, and need not to provide the conversion equipment of large volume, reduce volume and manufacturing cost.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220468770 CN202886584U (en) | 2012-09-14 | 2012-09-14 | Novel integrated error checking device of high-voltage energy measurement device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220468770 CN202886584U (en) | 2012-09-14 | 2012-09-14 | Novel integrated error checking device of high-voltage energy measurement device |
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| CN202886584U true CN202886584U (en) | 2013-04-17 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472433A (en) * | 2013-09-12 | 2013-12-25 | 国家电网公司 | Intelligent substation electric energy measuring secondary system virtual load error detection device and method |
| CN104267368A (en) * | 2014-10-14 | 2015-01-07 | 国家电网公司 | Fault monitoring method for secondary circuit of metering current transformer |
| CN104502882A (en) * | 2014-12-08 | 2015-04-08 | 国网四川省电力公司电力科学研究院 | Standard device for tracing 10kV-35kV high voltage electric energy value |
| CN105203984A (en) * | 2014-06-12 | 2015-12-30 | 国网山西省电力公司电力科学研究院 | Intelligent substation 3/2 wiring bus reactive power calibrator based on conventional instrument transformers |
| CN104111438B (en) * | 2014-07-18 | 2017-03-29 | 河北省电力建设调整试验所 | Primary large-current loop monitoring method in current transformer error test |
| CN107219492A (en) * | 2017-04-24 | 2017-09-29 | 国网浙江省电力公司电力科学研究院 | Medium voltage network electric energy metrical high pressure integration semi-physical simulation device |
| CN107748348A (en) * | 2017-11-30 | 2018-03-02 | 国网安徽省电力公司淮南供电公司 | The high-voltage electric energy meter calibrating installation that can integrally trace to the source |
-
2012
- 2012-09-14 CN CN 201220468770 patent/CN202886584U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472433A (en) * | 2013-09-12 | 2013-12-25 | 国家电网公司 | Intelligent substation electric energy measuring secondary system virtual load error detection device and method |
| CN105203984A (en) * | 2014-06-12 | 2015-12-30 | 国网山西省电力公司电力科学研究院 | Intelligent substation 3/2 wiring bus reactive power calibrator based on conventional instrument transformers |
| CN105203984B (en) * | 2014-06-12 | 2017-07-18 | 国网山西省电力公司电力科学研究院 | The wiring bus reactive power rate tester of intelligent station 3/2 based on traditional transformer |
| CN104111438B (en) * | 2014-07-18 | 2017-03-29 | 河北省电力建设调整试验所 | Primary large-current loop monitoring method in current transformer error test |
| CN104267368A (en) * | 2014-10-14 | 2015-01-07 | 国家电网公司 | Fault monitoring method for secondary circuit of metering current transformer |
| CN104502882A (en) * | 2014-12-08 | 2015-04-08 | 国网四川省电力公司电力科学研究院 | Standard device for tracing 10kV-35kV high voltage electric energy value |
| CN107219492A (en) * | 2017-04-24 | 2017-09-29 | 国网浙江省电力公司电力科学研究院 | Medium voltage network electric energy metrical high pressure integration semi-physical simulation device |
| CN107748348A (en) * | 2017-11-30 | 2018-03-02 | 国网安徽省电力公司淮南供电公司 | The high-voltage electric energy meter calibrating installation that can integrally trace to the source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DEYANG POWER SUPPLY COMPANY, STATE GRID SICHUAN EL Free format text: FORMER OWNER: WEIHAN SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD., ZHUHAI Effective date: 20150217 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liao Xuejing Inventor after: Tang Zhongwei Inventor after: Cai Hua Inventor after: Zhang Bo Inventor before: Qiu Jiawen Inventor before: Zhang Zhenqi |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: QIU JIAWEN ZHANG ZHENQI TO: LIAO XUEJING TANG ZHONGWEI CAI HUA ZHANG BO Free format text: CORRECT: ADDRESS; FROM: 519000 ZHUHAI, GUANGDONG PROVINCE TO: 618000 DEYANG, SICHUAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150217 Address after: 618000 Zijin Mountain street, Sichuan, Deyang, No. 4 Patentee after: Deyang Power Supply Company, State Grid Sichuan Electric Power Corporation Address before: 519000 No. 117 Warwick Road, Guangdong, Zhuhai Patentee before: Zhuhai Weihan Technology Development Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20170914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |