CN201867490U - Calibration device for multiepitope standard electric energy meters - Google Patents

Calibration device for multiepitope standard electric energy meters Download PDF

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Publication number
CN201867490U
CN201867490U CN2010206318477U CN201020631847U CN201867490U CN 201867490 U CN201867490 U CN 201867490U CN 2010206318477 U CN2010206318477 U CN 2010206318477U CN 201020631847 U CN201020631847 U CN 201020631847U CN 201867490 U CN201867490 U CN 201867490U
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CN
China
Prior art keywords
electric energy
voltage
energy meter
power supply
meter
Prior art date
Application number
CN2010206318477U
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Chinese (zh)
Inventor
张红
杨静
代燕杰
李琮琮
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山东电力研究院
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Priority to CN2010206318477U priority Critical patent/CN201867490U/en
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Publication of CN201867490U publication Critical patent/CN201867490U/en

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Abstract

The utility model relates to a calibration device for multiepitope standard electric energy meters. The calibration device can simultaneously calibrate 12 standard electric energy meters with the same specifications and different constants, and the accuracy degree of the calibration device reaches the grade of 0.01. A stage body is briefly and directly designed, facilitates the connecting and verification of the electric energy meters for an operator and can greatly improve the verification efficiency of the standard electric energy meters. The calibration device comprises at least one meter verification stage body; six meter connection bases are arranged on each meter verification stage body; the tested standard electric energy meters are mounted in the meter connection bases; the meter connection bases are connected with a three-phase full-electronic type programmable power supply respectively; a control computer is used for controlling the three-phase full-electronic type programmable power supply; and meanwhile, the three-phase full-electronic type programmable power supply is also connected with the three-phase wide-range standard power electric energy meters.

Description

Multi-epitope standard electric energy meter calibrating installation

Technical field

The utility model relates to a kind of multi-epitope standard electric energy meter calibrating installation.

Background technology

Electric energy meter belongs to charge use measurement instrument, is used between the electric power enterprise, the metering of electric energy between power supply enterprise and the user, and standard electric energy meter and calibrating installation thereof are the important component parts of measurement electric energy meter accuracy.Carry out smoothly like clockwork for the work of assurance field electric energy measurement, the calibrating efficient of standard electric energy meter is particularly important.

International at present and domestic standard electric energy meter detecting system is checked 5 standard electric energy meters at most, but because in recent years, standard electric energy meter quantity constantly increases, and concentrates, and the calibrating efficient that therefore improves standard electric energy meter is more and more important.Simultaneously, along with development of electronic technology, the power source of standard set-up and stability thereof have all had very great development, for the accuracy of multi-epitope standard electric energy meter verification system more provides guarantee.

The utility model content

The purpose of this utility model is in order to solve the not high problem of present electric energy meter calibration work efficiency, a kind of multi-epitope standard electric energy meter calibrating installation to be provided, the standard electric energy meter of 12 specifications of the same race of its verification simultaneously, different constants, and accuracy reaches 0.01 grade.The stage body design is succinct, directly perceived, and the handled easily personnel connect table, inspection table, can greatly improve the checkability of standard electric energy meter.

For achieving the above object, the utility model adopts following technical scheme:

A kind of multi-epitope standard electric energy meter calibrating installation, it comprises at least one cover calibration stage body, and every cover calibration stage body is provided with six meter adapting-seats, and tested standard electric energy meter is installed in each meter adapting-seat; Each meter adapting-seat is connected with three-phase full electronic programmable power supply respectively; Control computer control three-phase full electronic programmable power supply, this three-phase full electronic programmable power supply also is connected with three-phase wide-range normal power electric energy meter simultaneously.

Described calibration stage body has two covers, totally ten two of meter adapting-seats.

Described three-phase full electronic programmable power supply separates with the calibration stage body.

Described three-phase full electronic programmable power supply comprises CPU, it and control computer communication; CPU also is connected with the D/A waveform synthesizer with the phase frequency controller; The D/A waveform synthesizer is connected with galvo-preamplifier with the voltage prime amplifier respectively, wherein the voltage prime amplifier is connected with voltage power amplifier, voltage output transformer and voltage o controller successively, the output terminal one tunnel of voltage o controller is through Voltage Feedback module return voltage prime amplifier, and normal power electric energy meter is sent on another road; Galvo-preamplifier is connected with current power amplifier, output current transformer and electric current output gear switch device successively, electric current output gear switch device exports one the tunnel through current feedback module return current prime amplifier, normal power electric energy meter is sent on another road, and electric current output gear switch device, normal power electric energy meter and the series connection of each meter adapting-seat constitute current path; Simultaneously the voltage o controller also respectively and connect the voltage input end of each meter adapting-seat.

Multi-epitope standard electric energy meter calibrating installation of the present utility model comprises that three-phase full electronic programmable power supply, three-phase wide-range normal power electric energy meter, control computer and 2 covers can connect the calibration stage body of 6 standard electric energy meters simultaneously.Adopt power supply and inspection table stage body divided mode, connect epi-position and put two rows, front and back connect table, only examine standard scale, and without meter hanging frame (not considering the installing type table), the stage body design is succinct, directly perceived, and the handled easily personnel connect table.The current signal of three-phase full electronic programmable power supply is by current signal output end, normal power electric energy meter, meter adapting-seat and current feedback signal input end, with the form formation current path of series connection; The voltage signal output end of three-phase full electronic programmable power supply respectively and connect the voltage signal input end of normal power electric energy meter and meter adapting-seat, each meter adapting-seat voltage circuit of device and normal power electric energy meter voltage circuit are in parallel, the no-voltage mutual inductor inserts, between arbitrary meter adapting-seat voltage terminal corresponding with normal power electric energy meter 0.0016% of potential difference (PD) sum≤output voltage, the error control that line drop is produced is in controlled range; Complete machine is provided with emergency stop switch, so that emergency power off.

The utility model configuration effort standard is RD33 or K2006.Each epi-position all has the BNC receiving port of low frequency, high-frequency impulse, can receive≤the having/passive pulse (5-30V pulse amplitude) of 600kHz; The digital error display shows behind the radix point four.The uncertainty of package unit≤0.007%.The device accuracy reaches 0.01 grade.

The utility model utilizes can the set up standard calibration scheme of electric energy meter of software, standard electric energy meter to the many constants of multirange carries out automatic verification, the constant of different ranges automaticallyes switch, and the multirange calibration auto-adjustment scheme of 12 different constant standard electric energy meters can be set easily, and scheme can be duplicated easily, be revised; Can carry out automatically not the pouring not of error, record, average, change work such as whole, S value, curve plotting; There is breakpoint to renew function, allows to hang up the test of a certain epi-position, allow to suspend and continue current test; Possess the management and the printing function of perfect calibrating record, report, certificate, can export as electronic file forms such as Word, Excel, directly in Word or Excel, consult and print; Can warn automatically, protect various abnormality and operation.

The beneficial effects of the utility model are: 1. verification when this device has been realized the standard electric energy meter of 12 specifications of the same race, different constants first.2. the device class of accuracy reaches 0.01 grade.This device has improved the calibrating efficient of standard electric energy meter greatly, and application prospect is preferably arranged.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a three-phase full electronic programmable power supply principle of work block diagram of the present utility model.

Wherein, 1. three-phase full electronic programmable power supply, 2. three-phase wide-range normal power electric energy meter, 3. control computer, 4. calibration stage body, 5. meter adapting-seat, 6.CPU, 7. phase frequency controller, 8.D/A waveform synthesizer, 9. voltage prime amplifier, 10. voltage power amplifier, 11. voltage output transformers, 12 voltage o controllers, 13. galvo-preamplifier, 14. current power amplifiers, 15. output current transformers, 16. electric current output gear switch device, 17. the Voltage Feedback module, 18. current feedback modules, 19. tested standard electric energy meters.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.

This calibrating installation gets starts working after electric.Among Fig. 1, it comprises three-phase full electronic programmable power supply 1, and three-phase full electronic programmable power supply 1 is sent the voltage and current signal into three-phase wide-range normal power electric energy meter 2, and by calibration stage body 4 voltage and current is sent into tested standard electric energy meter.By control computer 3 the calibrating scheme is set, the electric power signal of corresponding tested standard electric energy meter is sampled by the electronic impulse sampling thief.Information feedback such as verification gained error are returned control computer 3, generate perfect calibrating record, report, certificate.

Among Fig. 2, three-phase full electronic programmable power supply 1 comprises CPU6, it and control computer 3 communications; CPU6 also is connected with D/A waveform synthesizer 8 with phase frequency controller 7; D/A waveform synthesizer 8 is connected with galvo-preamplifier 13 respectively at voltage prime amplifier 9, wherein voltage prime amplifier 9 is connected with voltage power amplifier 10, voltage output transformer 11 and voltage o controller 12 successively, the output terminal one tunnel of voltage o controller 12 is through Voltage Feedback module 17 return voltage prime amplifiers 9, and three-phase wide-range normal power electric energy meter 2 is sent on another road; Galvo-preamplifier 13 is connected with current power amplifier 14, output current transformer 15 and electric current output gear switch device 16 successively, 16 outputs one tunnel of electric current output gear switch device are through current feedback module 18 return current prime amplifiers 13, three-phase wide-range normal power electric energy meter 2 is sent on another road, and electric current output gear switch device 16, three-phase wide-range normal power electric energy meter 2 and 5 series connection of each meter adapting-seat constitute current path; Simultaneously voltage o controller 12 also respectively and connect the voltage input end of each meter adapting-seat 5.

Claims (4)

1. a multi-epitope standard electric energy meter calibrating installation is characterized in that, it comprises at least one cover calibration stage body, and every cover calibration stage body is provided with six meter adapting-seats, and tested standard electric energy meter is installed in each meter adapting-seat; Each meter adapting-seat is connected with three-phase full electronic programmable power supply respectively; Control computer control three-phase full electronic programmable power supply, this three-phase full electronic programmable power supply also is connected with three-phase wide-range normal power electric energy meter simultaneously.
2. multi-epitope standard electric energy meter calibrating installation as claimed in claim 1 is characterized in that described calibration stage body has two covers, totally ten two of meter adapting-seats.
3. multi-epitope standard electric energy meter calibrating installation as claimed in claim 1 is characterized in that, described three-phase full electronic programmable power supply separates with the calibration stage body.
4. multi-epitope standard electric energy meter calibrating installation as claimed in claim 1 is characterized in that, described three-phase full electronic programmable power supply comprises CPU, it and control computer communication; CPU also is connected with the D/A waveform synthesizer with the phase frequency controller; The D/A waveform synthesizer is connected with galvo-preamplifier with the voltage prime amplifier respectively, wherein the voltage prime amplifier is connected with voltage power amplifier, voltage output transformer and voltage o controller successively, the output terminal one tunnel of voltage o controller is through Voltage Feedback module return voltage prime amplifier, and normal power electric energy meter is sent on another road; Galvo-preamplifier is connected with current power amplifier, output current transformer and electric current output gear switch device successively, electric current output gear switch device exports one the tunnel through current feedback module return current prime amplifier, normal power electric energy meter is sent on another road, and electric current output gear switch device, normal power electric energy meter and the series connection of each meter adapting-seat constitute current path; Simultaneously the voltage o controller also respectively and connect the voltage input end of each meter adapting-seat.
CN2010206318477U 2010-11-30 2010-11-30 Calibration device for multiepitope standard electric energy meters CN201867490U (en)

Priority Applications (1)

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CN2010206318477U CN201867490U (en) 2010-11-30 2010-11-30 Calibration device for multiepitope standard electric energy meters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206318477U CN201867490U (en) 2010-11-30 2010-11-30 Calibration device for multiepitope standard electric energy meters

Publications (1)

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CN201867490U true CN201867490U (en) 2011-06-15

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102608560A (en) * 2012-04-01 2012-07-25 贵州电力试验研究院 Detection device for measuring accuracy of electric energy meter
CN102636769A (en) * 2012-04-18 2012-08-15 山东电力研究院 Error counter for electric energy meter and error counting method
CN102654573A (en) * 2012-05-28 2012-09-05 辽宁省电力有限公司抚顺供电公司 Verification device for single-phase electric energy meters
CN102736053A (en) * 2012-06-07 2012-10-17 陈劲游 Lifting and descending device for electric energy meter checking device
CN102928804A (en) * 2012-10-17 2013-02-13 沧州供电公司 Fault electric energy meter rapid judgment method by applying multi-epitope electric energy meter detection device
CN103064050A (en) * 2013-01-16 2013-04-24 南京天溯自动化控制系统有限公司 Multi-instrument correcting device and correcting method
CN103383443A (en) * 2013-07-31 2013-11-06 上海仪器仪表研究所 Modularized three-phase instrument calibrating device for smart grid
CN103487782A (en) * 2013-07-16 2014-01-01 深圳市航天泰瑞捷电子有限公司 Electric meter calibrating method and automatic calibrating system
WO2014107865A1 (en) * 2013-01-10 2014-07-17 江苏省电力公司电力科学研究院 Measurement device and measurement method compatible with electric energy meter and electricity consumption information collection terminal
CN104316897A (en) * 2014-10-29 2015-01-28 上海德布森电气有限公司 Detection device for three-phase multifunctional watt-hour meter
CN104808169A (en) * 2015-04-23 2015-07-29 国家电网公司 Three-phase electric energy meter field detection device and detection method
CN106154206A (en) * 2016-06-20 2016-11-23 华立科技股份有限公司 Electric energy meter error bearing calibration

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102608560A (en) * 2012-04-01 2012-07-25 贵州电力试验研究院 Detection device for measuring accuracy of electric energy meter
CN102636769B (en) * 2012-04-18 2014-08-27 山东电力研究院 Error counter for electric energy meter and error counting method
CN102636769A (en) * 2012-04-18 2012-08-15 山东电力研究院 Error counter for electric energy meter and error counting method
CN102654573A (en) * 2012-05-28 2012-09-05 辽宁省电力有限公司抚顺供电公司 Verification device for single-phase electric energy meters
CN102736053A (en) * 2012-06-07 2012-10-17 陈劲游 Lifting and descending device for electric energy meter checking device
CN102928804A (en) * 2012-10-17 2013-02-13 沧州供电公司 Fault electric energy meter rapid judgment method by applying multi-epitope electric energy meter detection device
WO2014107865A1 (en) * 2013-01-10 2014-07-17 江苏省电力公司电力科学研究院 Measurement device and measurement method compatible with electric energy meter and electricity consumption information collection terminal
CN103064050A (en) * 2013-01-16 2013-04-24 南京天溯自动化控制系统有限公司 Multi-instrument correcting device and correcting method
CN103487782A (en) * 2013-07-16 2014-01-01 深圳市航天泰瑞捷电子有限公司 Electric meter calibrating method and automatic calibrating system
CN103487782B (en) * 2013-07-16 2017-02-08 深圳市航天泰瑞捷电子有限公司 Electric meter calibrating method and automatic calibrating system
CN103383443A (en) * 2013-07-31 2013-11-06 上海仪器仪表研究所 Modularized three-phase instrument calibrating device for smart grid
CN103383443B (en) * 2013-07-31 2015-10-28 上海仪器仪表研究所 Modularization three-phase instrument calibration device used for intelligent electric network
CN104316897A (en) * 2014-10-29 2015-01-28 上海德布森电气有限公司 Detection device for three-phase multifunctional watt-hour meter
CN104808169A (en) * 2015-04-23 2015-07-29 国家电网公司 Three-phase electric energy meter field detection device and detection method
CN106154206A (en) * 2016-06-20 2016-11-23 华立科技股份有限公司 Electric energy meter error bearing calibration

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GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20130314

Address after: 250002 Ji'nan City Central District, Shandong, No. 2 South Road, No. 500

Patentee after: Shandong Research Inst. of Electric Power

Patentee after: State Grid Corporation of China

Address before: 250002 Ji'nan City Central District, Shandong, No. 2 South Road, No. 500

Patentee before: Shandong Research Inst. of Electric Power

ASS Succession or assignment of patent right

Owner name: STATE ELECTRIC NET CROP.

Effective date: 20130314

C41 Transfer of patent application or patent right or utility model