CN106054113B - A kind of quantification stability for electric energy meter tests system and its test method - Google Patents

A kind of quantification stability for electric energy meter tests system and its test method Download PDF

Info

Publication number
CN106054113B
CN106054113B CN201610601160.0A CN201610601160A CN106054113B CN 106054113 B CN106054113 B CN 106054113B CN 201610601160 A CN201610601160 A CN 201610601160A CN 106054113 B CN106054113 B CN 106054113B
Authority
CN
China
Prior art keywords
electric energy
energy meter
test
load
pressure regulator
Prior art date
Application number
CN201610601160.0A
Other languages
Chinese (zh)
Other versions
CN106054113A (en
Inventor
代燕杰
陈祉如
王平欣
张志�
李琮琮
杜艳
朱红霞
Original Assignee
国网山东省电力公司电力科学研究院
国家电网公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 国网山东省电力公司电力科学研究院, 国家电网公司 filed Critical 国网山东省电力公司电力科学研究院
Priority to CN201610601160.0A priority Critical patent/CN106054113B/en
Publication of CN106054113A publication Critical patent/CN106054113A/en
Application granted granted Critical
Publication of CN106054113B publication Critical patent/CN106054113B/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00Testing or calibrating of apparatus covered by the preceding groups
    • G01R35/04Testing or calibrating of apparatus covered by the preceding groups of instruments for measuring time integral of power or current

Abstract

The invention discloses a kind of quantification stabilities for electric energy meter to test system and its test method, it include the power supply unit for the pressure regulator being connected with power interface configured with power interface and by breaker, the table support of electric energy meter is tested configured with installation, the table support, which has, connects the communication interface for being tested electric energy meter and the output interface being connected with communication interface and the metering collecting unit with the matched sliding slot in tested electric energy meter bottom and for tested electric energy meter to be fixed on to the rotary buckle in sliding slot, the error instrument being connected configured with industrial personal computer and with industrial personal computer, the error instrument is connected with the output end of all types of standard electric energy meters and the table support output interface of tested electric energy meter, the industrial personal computer controls the measurement verification unit and load unit of pressure regulator simultaneously.

Description

A kind of quantification stability for electric energy meter tests system and its test method

Technical field

The present invention relates to a kind of quantification stabilities for electric energy meter to test system and its test method.

Background technology

Ammeter before being taken into use, needs to the quantification stability of ammeter test to consider.Existing test method is Carry out the calibrating of electrical energy measurement precision before manufacture using fictitious power steady load in laboratory.

However in actually using, electric energy meter is installed at the scene, and environment is complicated, needs to carry capacitive load, inductive load etc. A variety of loads, run on a variety of operating statuses such as light running, heavy service, and with the variation of load and operating status, The measurement error of electric energy meter can also change.

Existing test method can not simulate the various situations of live actual motion, therefore can not test out tested electric energy The table quantification stability during use at the scene.

Invention content

The present invention is to solve the above-mentioned problems, it is proposed that a kind of quantification stability for electric energy meter tests system and its survey Method for testing, the present invention have and can be loaded with adjustable by the pressure regulator that industrial PC is adjusted in real time, and in test It can also automatically switch testing scheme by industrial PC, the various situations of live actual motion can be simulated, test effect Good, test result has reference value.

To achieve the goals above, the present invention adopts the following technical scheme that:

A kind of quantification stability for electric energy meter tests system, including power supply unit, metering collecting unit, measurement verification Unit and load unit, wherein:

The power supply unit, the pressure regulator being connected with power interface configured with power interface and by breaker;

The metering collecting unit, the table support of electric energy meter is tested configured with installation, and there is the table support connection to be tested electric energy The communication interface of table and the output interface being connected with communication interface and with the matched sliding slot in tested electric energy meter bottom and use In the rotary buckle being fixed on tested electric energy meter in sliding slot;

The measurement verification unit, the error instrument being connected configured with industrial personal computer and with industrial personal computer, the error instrument connection There are the output end of all types of standard electric energy meters and the table support output interface of tested electric energy meter, the industrial personal computer to control tune simultaneously Depressor;

The load unit is provided with the adjustable load controlled by industrial personal computer.

The load unit is additionally provided with the PLC controller being connected with adjustable load, and the PLC controller is connected with Touch control device, the touch control device connect industrial personal computer simultaneously.

The output end of the pressure regulator passes sequentially through tested electric energy meter and standard electric energy meter and is connected with adjustable load.

The output end of the pressure regulator passes sequentially through standard electric energy meter and tested electric energy meter and is connected with adjustable load.

The table support includes phase mutual inductance type table support, single-phase meter support and/or three-phase direct table support, and corresponding installation three is mutually Sense formula electric energy meter, single-phase electric energy meter and/or three-phase direct electric energy meter.

The output end of the pressure regulator is connected with the voltmeter head for showing pressure regulator output voltage amplitude.

A kind of quantification stability test method for electric energy meter includes the following steps:

(1) several groups testing scheme is determined according to the actual use operating mode for being tested electric energy meter;

(2) test system is adjusted, gradually adjusts voltage value needed for the output voltage to test of pressure regulator, then adjust adjustable It is loaded to load needed for test, the range of switching standards electric energy meter, and the theoretical arteries and veins of pre-set criteria electric energy meter are needed according to test Rush number and the number of turns;

(3) according to the output voltage of adjustment pressure regulator and the adjustable load in real time of the needs of testing scheme, quilt is acquired in real time The variable of electric energy meter and standard electric energy meter is surveyed, and difference is asked to obtain the measurement error value of tested electric energy meter;

(4) range of standard electric energy meter is switched into maximum range first, then needs to adjust according to another testing scheme The output voltage of whole pressure regulator and adjustable load, the range further according to another testing scheme switching standards electric energy meter and preset mark The theoretical umber of pulse and the number of turns of quasi- electric energy meter;

(5) step (3)-(4) are repeated, until completing the test job of all testing schemes.

In the step (2), first confirm that the power supply of power supply unit and breaker are off-state and load unit Adjustable load be off-state, then powered on by power interface, close circuit breaker, start adjustable load to connect Enter adjustable load.

In the step (2), adjustment pressure regulator output voltage adjustment mode be manually directly adjust or It is that adjustment mode is selected by selecting switch before adjustment to pressure regulator Indirect method by industrial personal computer.

In the step (5), it is completed backed off after random test mode, adjustment is adjustable first is loaded to zero load, then adjusts The output voltage of whole pressure regulator is then shut off adjustable load to disconnect adjustable load, cut-off breaker finally disconnects to 0V Power supply unit power supply.

Beneficial effects of the present invention are:

The present invention has and can be loaded with adjustable by the pressure regulator that industrial personal computer is adjusted in real time, and also in test It can automatically switch testing scheme by industrial personal computer, the various situations of live actual motion can be simulated, good test effect is surveyed Test result has reference value;

(2) present invention can realize Self-pressurizing agri, loading and calculate error, and artificial participation amount is low, has measurement accuracy Advantage high, easy to operate, applied widely and efficient;

(3) table support has with the matched sliding slot in tested electric energy meter bottom and for tested electric energy meter to be fixed on sliding slot In rotary buckle, can realize the fast assembling-disassembling of tested electric energy meter, save dismounting be tested electric energy meter time, further carry High testing efficiency.

Description of the drawings

Fig. 1 is the general structure schematic diagram of the present invention.

Specific implementation mode:

The invention will be further described with embodiment below in conjunction with the accompanying drawings.

Such as Fig. 1, quantification stability system safety testing device, including power supply unit, metering collecting unit, measurement verification unit and negative Carrier unit;

The pressure regulator that the power supply unit has power interface and is connected with power interface by breaker;The tune Depressor have for selecting pressure regulator for the selecting switch of manual mode or automatic mode, the pressure regulator also have output end with The control terminal of control terminal, the pressure regulator is connected with industrial personal computer;Adjustment mode, operator are selected by selecting switch before adjustment Member can manually directly be adjusted pressure regulator, can also be by industrial personal computer to pressure regulator Indirect method;It is described The output end of pressure regulator is connected with the voltmeter head for showing pressure regulator output voltage amplitude;

Tested electric energy meter is installed, the metering collecting unit also has tested for installing in the metering collecting unit The table support of electric energy meter:The tested electric energy meter includes 3 pieces of single-phase electric energy meters, 1,3 piece of three-phase direct electric energy meter 2 and 3 pieces of three-phases Mutual inductance type electric energy meter 3, the table support include for install the single-phase meter support 4 of 3 pieces of single-phase electric energy meters 1, for install 3 pieces of three-phases it is straight Connect the three-phase direct table support 5 of formula electric energy meter 2 and the phase mutual inductance type table support for installing 3 pieces of phase mutual inductance type electric energy meters 3 6;The phase mutual inductance type table support 6 often mutually all has the PT that no-load voltage ratio is 220/57.7 and accuracy class is 0.02 grade and no-load voltage ratio is 100/5 and accuracy class be 0.02 grade of CT;Device can be controlled by host computer simultaneously, be appointed by operation interface input Meaning voltage and current, is adjusted control.

Each table support has the output interface that connection is tested the communication interface of electric energy meter and is connected with communication interface;It is each described Table support also has with the matched sliding slot in each tested electric energy meter bottom and the rotation for being fixed on tested electric energy meter in sliding slot Turn buckle to realize the fast assembling-disassembling of tested electric energy meter;

Standard electric energy meter is installed, the standard electric energy meter includes 1 piece of single-phase standard scale and 1 in the measurement verification unit Block three-phase standard scale;The measurement verification unit is also with industrial personal computer and the error instrument being connected with industrial personal computer;The error The output end of instrument and each standard electric energy meter is separately connected;

The touch control that the load unit has adjustable load and is connected with adjustable load by PLC controller Device processed;The touch control device is also connected with industrial personal computer;When load is adjusted in adjustment, touch control device can be passed through Directly adjust, it can also be by industrial personal computer to the adjustable indirect adjust automatically of load;

Such as Fig. 1, first piece of phase mutual inductance type electric energy meter 3 in phase mutual inductance type table support 6 in metering collecting unit is carried out Test;Before being tested, by the output end of pressure regulator pass sequentially through phase mutual inductance type electric energy meter 3 to be measured and three-phase standard scale with Adjustable load is connected, and error instrument is connected with the output interface of phase mutual inductance type table support 6.

The output end of the pressure regulator is also associated with the voltmeter head for showing pressure regulator output voltage amplitude.

Test method includes the following steps:

(A) testing scheme is formulated:Several groups testing scheme is determined according to the actual use operating mode of tested electric energy meter;This implementation Example lists 3 groups of typical testing schemes:

In testing scheme one, it is the resistive load for simulating incandescent lamp that load set, which is adjusted,;

In testing scheme two, load set is adjusted and is the load of the RL types, pf=0.8 for simulating air-conditioning, and wants The current spike with starting of air conditioner moment when testing beginning is sought, electric current continuously decreases after spike;

In testing scheme three, adjustable load set is to be loaded for simulating the L-type of electric drill, and require to start in test When with electric drill start moment current spike, electric current slowly declines after spike, then simulate people operate electric drill when it is handshaking Caused rotating speed is too fast, electric current rises;

(B) enter test mode:First confirm that the power supply of power supply unit and breaker are off-state and load list The adjustable load of member is off-state, is then powered on by power interface, close circuit breaker, start adjustable load with Access is adjustable to be loaded, and voltage value needed for the output voltage to test of pressure regulator is adjusted, then is adjusted adjustable be loaded to and tested institute It needs to load;The range of switching three-phase standard scale, and the theoretical umber of pulse and the number of turns of preset three-phase standard scale are needed according to test;

(C) test inspection table:According to the output voltage of adjustment pressure regulator and the adjustable load in real time of the needs of testing scheme, accidentally The variable of poor instrument acquisition is tested in real time phase mutual inductance type electric energy meter 3 and three-phase standard scale, and difference is asked to obtain tested three-phase The measurement error value of mutual inductance type electric energy meter 3, is then transferred to industrial personal computer by measurement error;

(D) switch test scheme as needed:The range of three-phase standard scale is switched into maximum range first, then basis The output voltage for needing to adjust pressure regulator of new testing scheme and adjustable load, switch three-phase standard further according to new testing scheme The theoretical umber of pulse and the number of turns of the range of table and preset three-phase standard scale;

(E) step (C) and step (D) are repeated until completing the test job of 3 groups of testing schemes;

(F) test mode is exited:Adjustment is adjustable first is loaded to zero load, then adjusts the output voltage of pressure regulator extremely 0V is then shut off adjustable load to disconnect adjustable load, cut-off breaker, last deenergization unit power supply.

As further limiting for this method:The adjustment mode of adjustment pressure regulator output voltage is manually direct Adjustment selects adjustment mode before adjustment either by industrial personal computer to pressure regulator Indirect method by selecting switch.

As further limiting for this method:The adjustment mode of the adjustable load of adjustment is direct by touch control device Adjustment is either by industrial personal computer to adjustable load Indirect method.

Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.

Claims (9)

1. a kind of quantification stability for electric energy meter tests the test method of system, wherein the test system includes power supply Unit, metering collecting unit, measurement verification unit and load unit;
The power supply unit, the pressure regulator being connected with power interface configured with power interface and by breaker;
The metering collecting unit, the table support of electric energy meter is tested configured with installation, and there is the table support connection to be tested electric energy meter Communication interface and the output interface being connected with communication interface and with the matched sliding slot in tested electric energy meter bottom and for will Tested electric energy meter is fixed on the rotary buckle in sliding slot;
The measurement verification unit, the error instrument being connected configured with industrial personal computer and with industrial personal computer, the error instrument connection is There are the output end of the standard electric energy meter of type and the table support output interface of tested electric energy meter, the industrial personal computer to control pressure regulation simultaneously Device;
The load unit is provided with the adjustable load controlled by industrial personal computer;
It is characterized in that:
The test method includes the following steps:
(1) several groups testing scheme is determined according to the actual use operating mode for being tested electric energy meter;
(2) test system is adjusted, gradually adjusts voltage value needed for the output voltage to test of pressure regulator, then adjust adjustable load It is loaded to needed for test, the range of switching standards electric energy meter, and the theoretical umber of pulse of pre-set criteria electric energy meter is needed according to test And the number of turns;
(3) according to the output voltage of adjustment pressure regulator and the adjustable load in real time of the needs of testing scheme, the tested electricity of acquisition in real time The variable of energy table and standard electric energy meter, and difference is asked to obtain the measurement error value of tested electric energy meter;
(4) range of standard electric energy meter is switched into maximum range first, is then adjusted and is adjusted according to the needs of another testing scheme The output voltage of depressor and adjustable load, the range further according to another testing scheme switching standards electric energy meter and pre-set criteria electricity The theoretical umber of pulse and the number of turns of energy table;
(5) step (3)-(4) are repeated, until completing the test job of all testing schemes.
2. a kind of quantification stability for electric energy meter as described in claim 1 tests the test method of system, it is characterized in that: The load unit is additionally provided with the PLC controller being connected with adjustable load, and the PLC controller is connected with touch control Device, the touch control device connect industrial personal computer simultaneously.
3. a kind of quantification stability for electric energy meter as described in claim 1 tests the test method of system, it is characterized in that: The output end of the pressure regulator passes sequentially through tested electric energy meter and standard electric energy meter and is connected with adjustable load.
4. a kind of quantification stability for electric energy meter as described in claim 1 tests the test method of system, it is characterized in that: The output end of the pressure regulator passes sequentially through standard electric energy meter and tested electric energy meter and is connected with adjustable load.
5. a kind of quantification stability for electric energy meter as described in claim 1 tests the test method of system, it is characterized in that: The table support includes phase mutual inductance type table support, single-phase meter support and/or three-phase direct table support, corresponding installation phase mutual inductance type electric energy Table, single-phase electric energy meter and/or three-phase direct electric energy meter.
6. a kind of quantification stability for electric energy meter as described in claim 1 tests the test method of system, it is characterized in that: The output end of the pressure regulator is connected with the voltmeter head for showing pressure regulator output voltage amplitude.
7. a kind of quantification stability for electric energy meter as described in claim 1 tests the test method of system, it is characterized in that: In the step (2), first confirm that the power supply of power supply unit and breaker are the adjustable of off-state and load unit Load is off-state, is then powered on by power interface, close circuit breaker, and it is adjustable to access to start adjustable load Load.
8. a kind of quantification stability for electric energy meter as described in claim 1 tests the test method of system, it is characterized in that: In the step (2), the adjustment mode of adjustment pressure regulator output voltage is manually directly to adjust or pass through work Control machine selects adjustment mode before adjustment to pressure regulator Indirect method by selecting switch.
9. a kind of quantification stability for electric energy meter as described in claim 1 tests the test method of system, it is characterized in that: In the step (5), it is completed backed off after random test mode, adjustment is adjustable first is loaded to zero load, then adjusts pressure regulator Output voltage to 0V, be then shut off adjustable load to disconnect adjustable load, cut-off breaker, last deenergization unit Power supply.
CN201610601160.0A 2016-07-27 2016-07-27 A kind of quantification stability for electric energy meter tests system and its test method CN106054113B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610601160.0A CN106054113B (en) 2016-07-27 2016-07-27 A kind of quantification stability for electric energy meter tests system and its test method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610601160.0A CN106054113B (en) 2016-07-27 2016-07-27 A kind of quantification stability for electric energy meter tests system and its test method

Publications (2)

Publication Number Publication Date
CN106054113A CN106054113A (en) 2016-10-26
CN106054113B true CN106054113B (en) 2018-09-11

Family

ID=57418473

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610601160.0A CN106054113B (en) 2016-07-27 2016-07-27 A kind of quantification stability for electric energy meter tests system and its test method

Country Status (1)

Country Link
CN (1) CN106054113B (en)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1066508A (en) * 1992-05-11 1992-11-25 江西省电力试验研究所 Intelligence testing device of watthour meter
CN102135608A (en) * 2011-01-29 2011-07-27 四川电力科学研究院 Electric energy metering and monitoring system of intelligent gateway
CN102901945A (en) * 2012-09-27 2013-01-30 陕西富集电力科技股份有限公司 Integrated error checking system of electric energy meter
CN202770986U (en) * 2012-05-25 2013-03-06 海盐新跃电器有限公司 Portable field test device of high voltage electric energy meter
CN103777172A (en) * 2013-12-27 2014-05-07 珠海中慧微电子有限公司 Reliability testing system of intelligent electric meter and method thereof
CN103792508A (en) * 2014-01-27 2014-05-14 国家电网公司 Error test system and method for digitized metering device
CN103983942A (en) * 2014-05-26 2014-08-13 国家电网公司 Intelligent ammeter calibrating device with switchable virtual and true loads and method thereof
CN203909112U (en) * 2014-06-19 2014-10-29 郭峰铨 Spinning type wire-connecting meter support of electric energy meter
CN104783994A (en) * 2014-12-29 2015-07-22 毕辉琴 Multifunctional two-layer portable tray
CN104914402A (en) * 2015-06-19 2015-09-16 国网天津市电力公司 Stability test method for straight-type three-phase intelligent electric energy meter automatic verification system
CN204832487U (en) * 2015-06-19 2015-12-02 国网天津市电力公司 A 0. 05 grade of miniature standard electric energy meter for passing through it is experimental that mutual -inductor inserts formula three -phase intelligent ammeter examination system stability
CN204989450U (en) * 2015-07-31 2016-01-20 四川德阳德仪电子仪器有限公司 Portable electric energy meter calibration device and electric energy meter verification system
CN105487043A (en) * 2016-01-28 2016-04-13 云南电网有限责任公司电力科学研究院 Metering accuracy simulation test system of digital electric energy meter

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1066508A (en) * 1992-05-11 1992-11-25 江西省电力试验研究所 Intelligence testing device of watthour meter
CN102135608A (en) * 2011-01-29 2011-07-27 四川电力科学研究院 Electric energy metering and monitoring system of intelligent gateway
CN202770986U (en) * 2012-05-25 2013-03-06 海盐新跃电器有限公司 Portable field test device of high voltage electric energy meter
CN102901945A (en) * 2012-09-27 2013-01-30 陕西富集电力科技股份有限公司 Integrated error checking system of electric energy meter
CN103777172A (en) * 2013-12-27 2014-05-07 珠海中慧微电子有限公司 Reliability testing system of intelligent electric meter and method thereof
CN103792508A (en) * 2014-01-27 2014-05-14 国家电网公司 Error test system and method for digitized metering device
CN103983942A (en) * 2014-05-26 2014-08-13 国家电网公司 Intelligent ammeter calibrating device with switchable virtual and true loads and method thereof
CN203909112U (en) * 2014-06-19 2014-10-29 郭峰铨 Spinning type wire-connecting meter support of electric energy meter
CN104783994A (en) * 2014-12-29 2015-07-22 毕辉琴 Multifunctional two-layer portable tray
CN104914402A (en) * 2015-06-19 2015-09-16 国网天津市电力公司 Stability test method for straight-type three-phase intelligent electric energy meter automatic verification system
CN204832487U (en) * 2015-06-19 2015-12-02 国网天津市电力公司 A 0. 05 grade of miniature standard electric energy meter for passing through it is experimental that mutual -inductor inserts formula three -phase intelligent ammeter examination system stability
CN204989450U (en) * 2015-07-31 2016-01-20 四川德阳德仪电子仪器有限公司 Portable electric energy meter calibration device and electric energy meter verification system
CN105487043A (en) * 2016-01-28 2016-04-13 云南电网有限责任公司电力科学研究院 Metering accuracy simulation test system of digital electric energy meter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
智能电能表自助误差校准装置设计;陈俊等;《电测与仪表》;20140925;第51卷(第18期);摘要、第108页第2栏第2段-第110页第2栏第3段 *

Also Published As

Publication number Publication date
CN106054113A (en) 2016-10-26

Similar Documents

Publication Publication Date Title
CN202066918U (en) Charger characteristic testing device
CN101592719B (en) Method and system for testing current transformer
CN101988943B (en) Power conversion efficiency measurement system and method thereof
CN203502580U (en) Checking system for online insulation monitoring device
CN201955405U (en) Frequency converter load testing system
CN103149386A (en) Electronic load module of power supply aging test and power supply aging test system
CN203870219U (en) Motor testbed measurement and control system
CN203054094U (en) Cable tester
CN201828657U (en) Device for detecting wiring simulation of power transformer
CN102435894B (en) Digital leakage protector tester and test method thereof
Kabir et al. Automated power factor correction and energy monitoring system
CN206020619U (en) A kind of portable relay tester
CN101634689A (en) System and method for testing power supply properties
CN204575726U (en) A kind of LED drive power detection system and equipment
CN100501440C (en) Insulated on-line monitoring system checker of high-voltage electric equipment
CN101950011A (en) Electricity transformer verification connection analog system and connection judging method thereof
CN101825686A (en) Low-uncertainty stray loss test system of motor
CN203720282U (en) Transformer comprehensive parameter testing device
CN201166700Y (en) Apparatus for measuring voltage mutual inductor error base on parameter measurement
CN204495970U (en) Energy-saving of motor system test platform
Bucci et al. Embedded power and energy measurement system based on an analog multiplier
WO2012109509A2 (en) Apparatus and method for generating a metering voltage output for a voltage regulator using a microprocessor
CN103983942A (en) Intelligent ammeter calibrating device with switchable virtual and true loads and method thereof
CN103513223B (en) A kind of electric energy meter communication interface load capacity test system
CN104914395B (en) A kind of detection quality verification method for single-phase intelligent electric energy meter automatic calibration system

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant