CN202583449U - Whole detection device of intelligent transformer station electric energy metering device - Google Patents

Whole detection device of intelligent transformer station electric energy metering device Download PDF

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Publication number
CN202583449U
CN202583449U CN 201220251854 CN201220251854U CN202583449U CN 202583449 U CN202583449 U CN 202583449U CN 201220251854 CN201220251854 CN 201220251854 CN 201220251854 U CN201220251854 U CN 201220251854U CN 202583449 U CN202583449 U CN 202583449U
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CN
China
Prior art keywords
standard
phase
transformer
electric energy
current
Prior art date
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CN 201220251854
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Chinese (zh)
Inventor
靳绍平
李东江
黄洋界
刘见
刘经昊
郑振洲
罗晓玉
梅国民
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江西省电力科学研究院
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Priority to CN 201220251854 priority Critical patent/CN202583449U/en
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Abstract

A whole detection device of an intelligent transformer station electric energy metering device is provided. The device comprises a single-phase sub-component whole detection device and a three-phase sub-component whole detection device, and is composed of a standard voltage transformer, a standard current transformer, a voltage booster, a current booster, a photoelectric sampler, a standard meter provided with a single-phase current and voltage program control switch power amplifier, and a controller. In the device, the traditional standard voltage and current transformers and a standard electric energy meter are adopted to realize whole detection of the intelligent transformer station electric energy metering device, and single-phase and three-phase electric energy metering devices are measured through adopting single-phase equipment according to a digital transformer station digital electric energy metering device structure. By adopting the device, automation of the state detection process of the intelligent transformer station electric energy metering device is realized. The device is concise in method, economical, scientific, practical and strong in operationality. The device is suitable for the intelligent transformer station electric energy metering device accuracy measuring technology field.

Description

Intelligent substation electric power meter whole detection device

Technical field

The utility model relates to a kind of intelligent substation electric power meter whole detection device, belongs to electric power electric power meter detection technique field.

Background technology

Electric power meter is made up of following two kinds of modes in the digital transformer substation of the prior art: (1) electronic mutual inductor is a digital signal frame by IEC61850-9-1/2 stipulations output form; Digital electricity meter receives this digital signal frame, and directly performing mathematical calculations draws electric energy; (2) the electronic mutual inductor output form is a small signal simulation voltage, and electric energy meter is converted into digital quantity with the small signal simulation voltage, calculates electric energy.

Because the change of essence has all taken place in electronic mutual inductor and digital electricity meter principle and interface mode; Have following problem on the detection technique to above-mentioned WT-MSR at present: (1) traditional calibration equipment can't carry out verification to it at all; This is because each electronic mutual inductor manufacturer causes understanding differently of IEC61850-9-1/2 stipulations; Produced electronic mutual inductor each have their own " language "; Mutual inductor manufacturer synchronous development of electronic formula transducer check device, but be only applicable to the product that oneself manufactures a product, also there is not a checking electronic type transformers device that is applicable to calibration authority up till now.Can only examine and determine with the equipment that mutual inductor manufacturer provides during calibration authority on-site proving electronic mutual inductor; (2) principle and the interface mode of digital electric energy meter and simulation small-signal formula electric energy meter change that essence has all taken place is not just reserved the interface of field-checking from present product, can't carry out field-checking to it at all.The existence of the problems referred to above has proposed new requirement for the verification of checking electronic type transformers and digital electricity meter.

Summary of the invention

The purpose of the utility model is; For solve the digital electric power meter inspection technology of present domestic shortage means, each electronic mutual inductor manufacturer causes understanding differently of IEC61850-9-1/2 stipulations; The interface that produced electronic mutual inductor " language " is inconsistent, digital electric energy meter is not reserved field-checking can't carry out problems such as field-checking to it, and the utility model provides a kind of intelligent substation electric power meter whole detection device.

The technical scheme of the utility model is that the utility model intelligent substation electric power meter whole detection device comprises single-phase subelement whole detection device and three-phase subelement whole detection device, by standard potential transformer TV 0, standard current transformer TA 0, stepup transformer, current lifting device, photoelectric sampler is formed with standard scale and controller with single-phase current, voltage-programmed switch power amplifier.

Said single-phase subelement whole detection device, standard potential transformer TV 0A winding parallelly connected with a winding of electronic single-phase voltage transformer (VT) electronics TV and stepup transformer, standard potential transformer TV 0Secondary Winding be connected to the U of standard scale and controller InTerminal; The power input terminal of stepup transformer is connected to the power amplifier that boosts; A winding of standard current transformer and a windings in series of electronic single-phase current transformer and current lifting device, the Secondary Winding of standard current transformer is connected to the I of standard scale and controller InTerminal; The power input terminal of current lifting device is connected to the up-flow power amplifier; Photoelectric sampler is installed in and aims at electric flux pulse output LED luminotron on the digital electric energy meter; Its pulse output is connected to the sub-(see figure 1) of pulse input end of standard scale and controller, forms the single-phase whole detection wiring of intelligent substation electric power meter as shown in Figure 1.

Said three-phase subelement whole detection device, standard potential transformer TV 0A winding parallelly connected with a winding of three-phase electronic voltage mutual inductor electronics TV and stepup transformer, standard potential transformer TV 0Secondary Winding be connected to the U of standard scale and controller InTerminal; The power input terminal of stepup transformer is connected to the power amplifier that boosts; Standard current transformer TA 0Winding and a windings in series of three-phase electronic current transformer and current lifting device, the Secondary Winding of standard current transformer is connected to the I of standard scale and controller InTerminal; The power input terminal of current lifting device is connected to the up-flow power amplifier; Photoelectric sampler is installed in and aims at electric flux pulse output LED luminotron on the digital electric energy meter; Its pulse output is connected to the sub-(see figure 2) of pulse input end of standard scale and controller, forms intelligent substation electric power meter three-phase whole detection wiring (see figure 2).

The beneficial effect of the utility model and prior art comparison is; Adopt traditional standard voltage, current transformer, standard electric energy meter that the intelligent substation electric power meter is carried out whole detection; And, adopt single-phase equipment to realize measurement to list, three-phase electric energy metering device according to digital transformer substation numeral electric power meter structure; Efficiently solve the digital electric power meter inspection technology of present domestic shortage means, each electronic mutual inductor manufacturer causes understanding differently of IEC61850-9-1/2 stipulations, the interface that produced electronic mutual inductor " language " is inconsistent, digital electric energy meter is not reserved field-checking can't carry out problems such as field-checking to it; The utility model has been realized the robotization of intelligent substation electric power meter state-detection process.Have that method is succinct, economy, science, practicality, advantage such as workable.

The utility model is applicable to intelligent substation electric power meter accuracy field of measuring technique.

Description of drawings

Fig. 1 is single-phase subelement whole detection wiring diagram;

Fig. 2 is a three-phase subelement whole detection wiring diagram;

Symbol among the figure:

TA 0It is standard current transformer; TV 0It is standard potential transformer; Electronics TV is an electronic type voltage transformer; Electronics TA is an electronic current mutual inductor; U 1It is primary voltage; U 2It is secondary voltage; I 1It is primary current; I 2It is secondary current; U INIt is standard electric energy meter voltage input end; I INIt is standard electric energy meter current input terminal; ● be current transformer polar end sign.

Embodiment

Below in conjunction with accompanying drawing the utility model is elaborated.

The major equipment that the utility model embodiment intelligent substation electric power meter whole detection device adopts has: the accurate voltage transformer (VT) of a station symbol (0.02 grade), the accurate current transformer of a station symbol (0.02 grade), stepup transformer, current lifting device, standard scale with single-phase current, voltage-programmed switch power amplifier and controller, a photoelectricity adopt device.

Single-phase subelement whole detection:

Single-phase subelement whole detection wiring diagram, as shown in Figure 1.

With standard potential transformer TV 0A winding parallelly connected with a winding of electronic single-phase voltage transformer (VT) electronics TV and stepup transformer, standard potential transformer TV 0Secondary Winding be connected to the U of standard scale and controller InTerminal; The power input terminal of stepup transformer is connected to the power amplifier that boosts; A winding of standard current transformer and a windings in series of electronic single-phase current transformer and current lifting device, the Secondary Winding of standard current transformer is connected to the I of standard scale and controller InTerminal; The power input terminal of current lifting device is connected to the up-flow power amplifier; Photoelectric sampler is installed in aims at electric flux pulse output LED luminotron on the digital electric energy meter, its pulse output is connected to pulse input end of standard scale and controller, forms the single-phase whole detection wiring of intelligent substation electric power meter as shown in Figure 1.

Single-phase subelement whole detection step:

(1) carries out wiring by the mode of connection shown in Figure 1;

(2) to standard electric energy meter and controller input digit formula electric energy meter pulse constant and multiplying power;

(3) control the power amplifier that boosts voltage is risen to rated voltage;

(4) control cos φ=1.0 and up-flow power amplifier rise to 1%I with electric current b, at this moment, the electric flux pulse output LED luminotron on the digital electric energy meter should have light and dark light pulse output;

(5) suitably adjust photoelectric sampler, aim at electric flux pulse output LED luminotron, make the LED luminotron on the photoelectric sampler consistent with the flicker frequency of digital electric energy pulse output LED luminotron;

(6) the single-phase subelement global error of beginning detects, and on standard electric energy meter and controller, can read this phase WT-MSR cos φ=1.0,1%I bThe global error value;

(7) under above-mentioned condition invariant state, electric current is risen to 5%I b, (20%I b, 100%I b, 120%I b) the single-phase subelement global error detection of beginning, on standard electric energy meter and controller, can read this phase WT-MSR cos φ=1.0,5%I bThe global error value;

Three-phase subelement whole detection:

Three-phase subelement whole detection wiring diagram, as shown in Figure 2;

With standard potential transformer TV 0A winding parallelly connected with a winding of three-phase electronic voltage mutual inductor electronics TV and stepup transformer, standard potential transformer TV 0Secondary Winding be connected to the U of standard scale and controller InTerminal; The power input terminal of stepup transformer is connected to the power amplifier that boosts; With a windings in series of winding and the three-phase electronic current transformer and the current lifting device of standard current transformer, the Secondary Winding of standard current transformer is connected to the I of standard scale and controller InTerminal; The power input terminal of current lifting device is connected to the up-flow power amplifier; Photoelectric sampler is installed in aims at electric flux pulse output LED luminotron on the digital electric energy meter, its pulse output is connected to pulse input end of standard scale and controller, forms intelligent substation electric power meter three-phase whole detection wiring as shown in Figure 2.

Three-phase subelement whole detection step:

(1) carries out wiring by the mode of connection shown in Figure 2;

(2) to standard electric energy meter and controller input digit formula electric energy meter pulse constant and multiplying power;

(3) control the power amplifier that boosts voltage is risen to rated voltage;

(4) control cos φ=1.0 and up-flow power amplifier rise to 1%I with electric current b, at this moment, the electric flux pulse output LED luminotron on the digital electric energy meter should have light and dark light pulse output;

(5) suitably adjust photoelectric sampler, aim at electric flux pulse output LED luminotron, make the LED luminotron on the photoelectric sampler consistent with the flicker frequency of digital electric energy pulse output LED luminotron;

(6) beginning three-phase subelement global error detects, and on standard electric energy meter and controller, can read this phase WT-MSR cos φ=1.0,1%I bThe global error value;

(7) under above-mentioned condition invariant state, electric current is risen to 5%I b, (20%I b, 100%I b, 120%I b) detection of beginning three-phase subelement global error, on standard electric energy meter and controller, can read this phase WT-MSR cos φ=1.0,5%I bThe global error value.

Claims (1)

1. an intelligent substation electric power meter whole detection device is characterized in that, said device comprises single-phase subelement whole detection device and three-phase subelement whole detection device, by standard potential transformer TV 0, standard current transformer TA 0, stepup transformer, current lifting device, photoelectric sampler is formed with standard scale and controller with single-phase current, voltage-programmed switch power amplifier;
Said single-phase subelement whole detection device, standard potential transformer TV 0A winding parallelly connected with a winding of electronic single-phase voltage transformer (VT) electronics TV and stepup transformer, standard potential transformer TV 0Secondary Winding be connected to the U of standard scale and controller InTerminal; The power input terminal of stepup transformer is connected to the power amplifier that boosts; A winding of standard current transformer and a windings in series of electronic single-phase current transformer and current lifting device, the Secondary Winding of standard current transformer is connected to the I of standard scale and controller InTerminal; The power input terminal of current lifting device is connected to the up-flow power amplifier; Photoelectric sampler is installed in aims at electric flux pulse output LED luminotron on the digital electric energy meter, its pulse output is connected to pulse input end of standard scale and controller;
Said three-phase subelement whole detection device, standard potential transformer TV 0A winding parallelly connected with a winding of three-phase electronic voltage mutual inductor electronics TV and stepup transformer, standard potential transformer TV 0Secondary Winding be connected to the U of standard scale and controller InTerminal; The power input terminal of stepup transformer is connected to the power amplifier that boosts; Standard current transformer TA 0Winding and a windings in series of three-phase electronic current transformer and current lifting device, the Secondary Winding of standard current transformer is connected to the I of standard scale and controller InTerminal; The power input terminal of current lifting device is connected to the up-flow power amplifier; Photoelectric sampler is installed in aims at electric flux pulse output LED luminotron on the digital electric energy meter, its pulse output is connected to pulse input end of standard scale and controller.
CN 201220251854 2012-05-31 2012-05-31 Whole detection device of intelligent transformer station electric energy metering device CN202583449U (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102854488A (en) * 2012-08-26 2013-01-02 江西省电力科学研究院 Integral detection method of intelligent substation electric energy metering device
CN103149547A (en) * 2012-12-23 2013-06-12 北京智网创能科技有限公司 Transformer substation measurement return circuit online monitoring system and state maintenance method
CN103439679A (en) * 2013-08-28 2013-12-11 国家电网公司 Absolute time delay detection device and method of intelligent substation mutual inductor data collection system
CN104267369A (en) * 2014-08-01 2015-01-07 云南电力试验研究院(集团)有限公司电力研究院 Separation achieving method for single-phase-three-phase electric energy meter compatible calibration voltage system
CN104330618A (en) * 2014-10-28 2015-02-04 哈尔滨电工仪表研究所 Household power distribution monitor
CN104698418A (en) * 2015-03-24 2015-06-10 东营市双益电气有限责任公司 Overall calibration method of measuring system of transformer test station
CN105116364A (en) * 2015-07-06 2015-12-02 浙江涵普电力科技有限公司 Standard measurement unit and method used for electric energy metering remote on-line monitoring system
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
CN105301553A (en) * 2015-12-01 2016-02-03 国家电网公司 Multipurpose single/three-phase electric energy meter detector
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
CN105510869A (en) * 2016-02-19 2016-04-20 云南电网有限责任公司电力科学研究院 Whole station testing system and method of digital electric energy metering balance of intelligent transformer substation
CN106526526A (en) * 2016-12-08 2017-03-22 国网四川省电力公司电力科学研究院 Test device for digital metering system

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102854488A (en) * 2012-08-26 2013-01-02 江西省电力科学研究院 Integral detection method of intelligent substation electric energy metering device
CN103149547B (en) * 2012-12-23 2016-04-27 北京智网创能科技有限公司 Transformer substation measurement return circuit on-line monitoring system and state maintenance method
CN103149547A (en) * 2012-12-23 2013-06-12 北京智网创能科技有限公司 Transformer substation measurement return circuit online monitoring system and state maintenance method
CN103439679A (en) * 2013-08-28 2013-12-11 国家电网公司 Absolute time delay detection device and method of intelligent substation mutual inductor data collection system
CN103439679B (en) * 2013-08-28 2015-08-19 国家电网公司 Intelligent substation mutual inductor data collection system absolute time delay detection device and method
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
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
CN104267369B (en) * 2014-08-01 2017-01-18 云南电力试验研究院(集团)有限公司电力研究院 Separation achieving method for single-phase-three-phase electric energy meter compatible calibration voltage system
CN104267369A (en) * 2014-08-01 2015-01-07 云南电力试验研究院(集团)有限公司电力研究院 Separation achieving method for single-phase-three-phase electric energy meter compatible calibration voltage system
CN104330618A (en) * 2014-10-28 2015-02-04 哈尔滨电工仪表研究所 Household power distribution monitor
CN104698418A (en) * 2015-03-24 2015-06-10 东营市双益电气有限责任公司 Overall calibration method of measuring system of transformer test station
CN105116364A (en) * 2015-07-06 2015-12-02 浙江涵普电力科技有限公司 Standard measurement unit and method used for electric energy metering remote on-line monitoring system
CN105116364B (en) * 2015-07-06 2019-02-05 浙江涵普电力科技有限公司 Canonical measure unit and its method for electrical energy measurement remote online monitoring system
CN105301553A (en) * 2015-12-01 2016-02-03 国家电网公司 Multipurpose single/three-phase electric energy meter detector
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
CN105510869A (en) * 2016-02-19 2016-04-20 云南电网有限责任公司电力科学研究院 Whole station testing system and method of digital electric energy metering balance of intelligent transformer substation
CN105510869B (en) * 2016-02-19 2018-03-27 云南电网有限责任公司电力科学研究院 A kind of whole test system and method for standing of intelligent substation digitalized electric energy metering balance
CN106526526A (en) * 2016-12-08 2017-03-22 国网四川省电力公司电力科学研究院 Test device for digital metering system

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C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: STATE GRID CORPORATION OF CHINA

Effective date: 20121212

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20121212

Address after: 330009 No. 88 min Qiang Road, private science and Technology Park, Jiangxi, Nanchang

Patentee after: Jiangxi Electric Power Science Academy

Patentee after: State Grid Corporation of China

Address before: 330009 No. 88 min Qiang Road, private science and Technology Park, Jiangxi, Nanchang

Patentee before: Jiangxi Electric Power Science Academy