CN202535161U - Intelligent high-voltage distribution switch with anti-power stealing high-voltage measurement - Google Patents

Intelligent high-voltage distribution switch with anti-power stealing high-voltage measurement Download PDF

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Publication number
CN202535161U
CN202535161U CN2012201276161U CN201220127616U CN202535161U CN 202535161 U CN202535161 U CN 202535161U CN 2012201276161 U CN2012201276161 U CN 2012201276161U CN 201220127616 U CN201220127616 U CN 201220127616U CN 202535161 U CN202535161 U CN 202535161U
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CN
China
Prior art keywords
voltage
distribution switch
transformer
controller
phase
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
CN2012201276161U
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Chinese (zh)
Inventor
吕强
陈菊明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shuimu Yuanhua Electric Co ltd
Beijing Semeureka Electric Co Ltd
Original Assignee
Beijing Semeureka Electric Co Ltd
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
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Priority to CN2012201276161U priority Critical patent/CN202535161U/en
Application granted granted Critical
Publication of CN202535161U publication Critical patent/CN202535161U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an intelligent high-voltage distribution switch with anti-power stealing high-voltage measurement. The distribution switch comprises a high-voltage distribution switch body, an electronic combined current and voltage transformer and a controller. The high-voltage distribution switch body that is connected to a power distribution line is used for connection or disconnection; the electronic combined current and voltage transformer is arranged inside the high-voltage distribution switch and is coupled to a high-voltage loop to carry out measurement on phase current signals and phase voltage signals and send the signals to the controller; and the controller includes a measurement unit that is electrically connected with the electronic combined current and voltage transformer arranged inside the high-voltage distribution switch to read the measurement signals and carry out power measurement. According to the utility model, the provided switch can be applied to a system with a 10-KV voltage class and above; because the transformer is arranged inside the high-voltage distribution switch, a user can not steal power by short-circuiting the transformer; meanwhile, the controller has an intrusion detection function, so that whether there is a power stealing phenomenon can be found by comparison of high voltage and lower voltage measurement data.

Description

Intelligent high-pressure panel switches with anti-electricity-theft formula high pressure measurement
Technical field
The utility model relates to a kind of high voltage power distribution switch, particularly relates to a kind of intelligent high-pressure panel switches with anti-electricity-theft formula high pressure measurement.
Background technology
The high voltage power distribution switch also is called primary cut-out, is mounted on the distribution line to be used for the power equipment of control circuit deciliter.General built-in current of high voltage power distribution switch or voltage transformer, electric current, voltage signal with measurement circuitry offer secondary devices such as protection, metering.
At present big power customer is most to adopt high-voltage electric-energy meter, and electric power meter to be power supply enterprise be used to a measure steelyard that supplies power consumption, it whether accurately operation, can prevent stealing effectively, be directly connected to the economic benefit of power supply enterprise.Through analysis, can find out that all stealing electricity methods nearly all will directly contact and change the purpose that electric power meter just can reach stealing to the stealing mode.So how can reduce the chance of its stealing from approach, it can not be juggled things on signals collecting and metering device could effectively realize anti-electricity-theftly, and prior art can't realize.
The utility model content
To being prone to by stealing defective and problem of existing high voltage power distribution switch and metering method existence, the purpose of the utility model is to propose a kind of intelligent high-pressure panel switches with anti-electricity-theft formula high pressure measurement.
In order to achieve the above object, the embodiment of the utility model provides a kind of intelligent high-pressure panel switches with anti-electricity-theft formula high pressure measurement, comprises high voltage power distribution switch, electronic current voltage transformer, controller; Said high voltage power distribution switch inserts distribution line, is used for line disconnection; Said electronic current voltage transformer is built in the high voltage power distribution switch, and is coupled in the high tension loop to give controller to phase current, phase voltage signal measure and transmit; Said controller comprises metering units, and said metering units is electrically connected the electronic current voltage transformer of high voltage power distribution switch to read measuring-signal and to carry out electric energy metrical.
Preferred as technique scheme, said electronic current voltage transformer comprises that three-phase electronic current transformer and electronic type voltage transformer are to measure three-phase current and three-phase voltage signal respectively.
Preferred as technique scheme, said electronic current voltage transformer comprises the current transformer and the voltage transformer of integral type.
Preferred as technique scheme, said controller is arranged in the sealed cabinet.
Preferred as technique scheme, the door of said sealed cabinet have and are used for the detection door switch to realize invading the transducer that detects.
The beneficial effect of the utility model is: the utility model can be used in the system of 10kV and above electric pressure; Because instrument transformer places the high voltage power distribution switch inner; The user can't carry out stealing through the mode of short circuit instrument transformer; Controller has " invade and detect " function simultaneously, therefore can be through contrast high pressure and low-temperature measurement data, and whether discovery in time has stealing electricity phenomenon.The utility model can prevent that through the secondary measurement to the high pressure electricity consumption user side from carrying out stealing through the mode of short circuit instrument transformer.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the modular structure sketch map of the utility model embodiment;
Fig. 2 is the circuit structure diagram of the utility model embodiment;
Fig. 3 is the structural representation of existing instrument transformer;
Fig. 4 is the electrical block diagram of electronic current voltage transformer.
Embodiment
The accompanying drawing that will combine the utility model below carries out clear, intactly description to the technical scheme of the utility model, and obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The intelligent high-pressure panel switches with anti-electricity-theft formula high pressure measurement of the embodiment of the invention, its structure is as depicted in figs. 1 and 2, comprises high voltage power distribution switch 10, control end 20; Said high voltage power distribution switch 10 comprises the vacuum circuit-breaker 3 as switch, and said vacuum circuit-breaker 3 is connected in the distribution line to connect/to cut off said distribution line; Also comprise electronic current voltage transformer 101, said electronic current voltage transformer 101 is built in the high voltage power distribution switch, and is coupled in the high tension loop to give controller to phase current, phase voltage signal measure and transmit.Simultaneously said electronic current voltage transformer 101 is electrically connected said vacuum circuit-breaker 3, for said vacuum circuit-breaker provides input current.Said control end 20 comprises metering units 201, and the electronic current voltage transformer 101 that said metering units 201 is electrically connected said high voltage power distribution switch 10 is to read signal.Wherein control end 20 can be supplied power through supply line.
In order to improve fail safe, the metering units 201 of said control end 20 all is arranged in the sealed cabinet.Simultaneously, the door of sealed cabinet has and is used for the transducer of detection door switch realize to invade to detect.So just make controller have " invade and detect " function, therefore can be through contrast high pressure and low-temperature measurement data, whether discovery in time has stealing electricity phenomenon.
Further, the utility model has also been made improvement for the high voltage power distribution switch.Traditional high voltage power distribution switch is general as shown in Figure 3, comprises voltage transformer 101, current transformer 102, switch 103.(as shown in Figure 1 for the three-phase electricity distribution line; Have A, B, C three-phase electricity); Traditional high voltage power distribution switch generally only disposes A, C phase current mutual inductor and single-phase potential transformer and comes electric current on the measurement circuitry, voltage signal, then with the voltage of the voltage signal that measures as each phase.Simultaneously, traditional instrument transformer all is an electromagnetic transformer, as iron core, has problems such as volume is big, energy consumption is big, failure rate is high, easy electromagnetism is saturated with the lamination silicon steel sheet.
The structure of the high voltage power distribution switch of the utility model embodiment such as Fig. 2 and shown in Figure 4 comprise schematically showing vacuum circuit-breaker 3 and electronic current voltage transformer 101.Said vacuum circuit-breaker 3 is connected in the distribution line to connect/to cut off said distribution line; Said electronic current voltage transformer 101 is built in the high voltage power distribution switch, and is coupled in the high tension loop so that phase current, phase voltage signal are measured.Said electronic current voltage transformer 101 also is electrically connected said vacuum circuit-breaker 3 and thinks that said vacuum circuit-breaker 3 provides input current.Like Fig. 2 and shown in Figure 4, said electronic current voltage transformer comprises voltage transformer 1 summation current transformer 2, and said current transformer 2 is led respectively to measure each voltage signal mutually in the three-phase electricity respectively with three-phase electricity.
Wherein, said high voltage power distribution switch also comprises: measuring and controlling instrument (not shown), said measuring and controlling instrument are electrically connected the signal of said electronic current voltage transformer to accept to collect; Said measuring and controlling instrument also is electrically connected said vacuum circuit-breaker with according to the said vacuum circuit-breaker On/Off of said signal controlling.
Wherein, This vacuum circuit-breaker not only can cut off or the closed high circuit in no-load current and load current; And the effect through relay protection when system breaks down, cutting off overload electric current and short circuit current, it has quite perfect arc extinguishing structure and enough cutout abilities.This vaccum circuit device body can be universal high voltage power distribution switch, like ZW32, ZW20 type switch.
Through setting up some functional modules; This preferred embodiment can also be realized following function; Less earthing capacitance current when for example measuring single phase ground fault in the distribution network had both guaranteed the certainty of measurement of normal duty and short circuit current, the accuracy of the small current measurement in the time of satisfying earth fault again; Also can carry out the adjustment of instrument transformer precision as requested, be used to satisfy different application scenarios.
The above; Be merely the embodiment of the utility model; But the protection range of the utility model is not limited thereto; Any technical staff who is familiar with the present technique field can expect changing or replacement in the technical scope that the utility model discloses easily, all should be encompassed within the protection range of the utility model.Therefore, the protection range of the utility model should be as the criterion by said protection range with claim.

Claims (5)

1. the intelligent high-pressure panel switches with anti-electricity-theft formula high pressure measurement is characterized in that, comprise high voltage power distribution switch, electronic current voltage transformer, controller; Said high voltage power distribution switch inserts distribution line, is used for line disconnection; Said electronic current voltage transformer is built in the high voltage power distribution switch, and is coupled in the high tension loop to give controller to phase current, phase voltage signal measure and transmit; Said controller comprises metering units, and said metering units is electrically connected the electronic current voltage transformer of high voltage power distribution switch to read measuring-signal and to carry out electric energy metrical.
2. the intelligent high-pressure panel switches with anti-electricity-theft formula high pressure measurement according to claim 1; It is characterized in that said electronic current voltage transformer comprises that three-phase electronic current transformer and electronic type voltage transformer are to measure three-phase current and three-phase voltage signal respectively.
3. the intelligent high-pressure panel switches with anti-electricity-theft formula high pressure measurement according to claim 2 is characterized in that said electronic current voltage transformer comprises the current transformer and the voltage transformer of integral type.
4. the intelligent high-pressure panel switches with anti-electricity-theft formula high pressure measurement according to claim 1 is characterized in that said controller is arranged in the sealed cabinet.
5. the intelligent high-pressure panel switches with anti-electricity-theft formula high pressure measurement according to claim 4 is characterized in that, the door of said sealed cabinet has and is used for the transducer of detection door switch realize to invade to detect.
CN2012201276161U 2012-03-28 2012-03-28 Intelligent high-voltage distribution switch with anti-power stealing high-voltage measurement Expired - Lifetime CN202535161U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201276161U CN202535161U (en) 2012-03-28 2012-03-28 Intelligent high-voltage distribution switch with anti-power stealing high-voltage measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201276161U CN202535161U (en) 2012-03-28 2012-03-28 Intelligent high-voltage distribution switch with anti-power stealing high-voltage measurement

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CN202535161U true CN202535161U (en) 2012-11-14

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106054116A (en) * 2016-08-12 2016-10-26 国网冀北电力有限公司承德供电公司 Intelligent-type high-voltage metering device
CN112083208A (en) * 2020-09-23 2020-12-15 国网山东省电力公司潍坊供电公司 Mutual inductor type three-phase electric energy meter capable of preventing electricity stealing by short-circuit current

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106054116A (en) * 2016-08-12 2016-10-26 国网冀北电力有限公司承德供电公司 Intelligent-type high-voltage metering device
CN112083208A (en) * 2020-09-23 2020-12-15 国网山东省电力公司潍坊供电公司 Mutual inductor type three-phase electric energy meter capable of preventing electricity stealing by short-circuit current

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: BEIJING SEMEUREKA ELECTRIC CO., LTD.

Free format text: FORMER NAME: BEIJING SHUIMU YUANHUA ELECTRIC CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 100083 Beijing City, Yongfeng industrial base, Yongfeng Road, No. 5, No. 1, Lou Yongfeng science and technology enterprises to speed up the district (district two) Room 301

Patentee after: BEIJING SEMEUREKA ELECTRICS Co.,Ltd.

Address before: 100083 Beijing City, Yongfeng industrial base, Yongfeng Road, No. 5, No. 1, Lou Yongfeng science and technology enterprises to speed up the district (district two) Room 301

Patentee before: BEIJING SHUIMU YUANHUA ELECTRIC Co.,Ltd.

CP01 Change in the name or title of a patent holder

Address after: 100083 Building No. 1, No. 5, Yongfeng Road, Haidian District, Beijing 301

Patentee after: SHUIMU YUANHUA ELECTRIC Co.,Ltd.

Address before: 100083 Building No. 1, No. 5, Yongfeng Road, Haidian District, Beijing 301

Patentee before: BEIJING SHUIMU YUANHUA ELECTRIC Co.,Ltd.

CP01 Change in the name or title of a patent holder
CP03 Change of name, title or address

Address after: 100083 Building No. 1, No. 5, Yongfeng Road, Haidian District, Beijing 301

Patentee after: BEIJING SHUIMU YUANHUA ELECTRIC Co.,Ltd.

Address before: 100083 Beijing Haidian District Yongfeng industrial base No. 5 Yongfeng Road 5, Lou Yongfeng science and technology enterprise acceleration zone (two district) 301 room.

Patentee before: BEIJING SEMEUREKA ELECTRICS Co.,Ltd.

CP03 Change of name, title or address
CX01 Expiry of patent term

Granted publication date: 20121114

CX01 Expiry of patent term