CN202534938U - High-voltage distribution switch with built-in three-phase combined electronic current and voltage mutual inductor - Google Patents

High-voltage distribution switch with built-in three-phase combined electronic current and voltage mutual inductor Download PDF

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Publication number
CN202534938U
CN202534938U CN2012201276725U CN201220127672U CN202534938U CN 202534938 U CN202534938 U CN 202534938U CN 2012201276725 U CN2012201276725 U CN 2012201276725U CN 201220127672 U CN201220127672 U CN 201220127672U CN 202534938 U CN202534938 U CN 202534938U
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CN
China
Prior art keywords
electronic current
voltage
phase
distribution switch
voltage transformer
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
CN2012201276725U
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Chinese (zh)
Inventor
吕强
陈菊明
杨海
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.)
Guiyang Power Supply Bureau
Beijing Semeureka Electric Co Ltd
Original Assignee
Guiyang Power Supply Bureau
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
Application filed by Guiyang Power Supply Bureau, Beijing Semeureka Electric Co Ltd filed Critical Guiyang Power Supply Bureau
Priority to CN2012201276725U priority Critical patent/CN202534938U/en
Application granted granted Critical
Publication of CN202534938U publication Critical patent/CN202534938U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

Disclosed in the utility model is a high-voltage distribution switch with a built-in three-phase combined electronic current and voltage mutual inductor, wherein the high-voltage distribution switch comprises a three-phase vacuum circuit breaker and a controller. Each phase of the three-phase vacuum circuit breaker includes an upper outgoing terminal, a vacuum extinction chamber, an operating mechanism and a lower outgoing terminal. Combined electronic current and voltage mutual inductors are arranged outside each phase of vacuum circuit breaker and at one side of each of the outgoing terminals; and the combined electronic current and voltage mutual inductors is connected with the controller. According to the high-voltage distribution switch provided by the utility model, because electromagnetic transformers arranged inside the existing high-voltage distribution switch are changed into the combined electronic current and voltage mutual inductors and each phase of vacuum circuit breaker is provided with the combined electronic current and voltage mutual inductor, measurement of current and voltage signals of three phases A, B and C can be realized and a reliable and stable determination base is provided for secondary equipment, thereby substantially improving the reliability of the whole high-voltage distribution switch.

Description

The high voltage power distribution switch of built-in three-phase electronic current-voltage transformer
Technical field
The utility model relates to a kind of high voltage power distribution switch, relates in particular to a kind of high voltage power distribution switch that disposes current-voltage transformer.
Background technology
The high voltage power distribution switch is mounted on the distribution line, is used for the power equipment of line disconnection electric current.The high voltage power distribution switch generally needs built-in current or voltage transformer, is used to provide secondary singal to controller, carries out data acquisition, energy is provided also can for simultaneously the operating mechanism of switch, when breaking down, splits to close and carries out sub-switching operation.Traditional high voltage power distribution switch generally only disposes A, C phase current mutual inductor and single-phase voltage transformer, comes current and voltage signals on the measurement circuitry, and the measured voltage signal is shared as three-phase.Traditional instrument transformer all is an electromagnetic type, 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 utility model content
The purpose of the utility model is to provide a kind of high voltage power distribution switch of built-in three-phase electronic current-voltage transformer, and this switch has the A of measurement, B, C three-phase current, voltage function.
For realizing above-mentioned purpose, the utility model provides following technical scheme:
The high voltage power distribution switch of a kind of built-in three-phase electronic current-voltage transformer that the utility model provides; Comprise three-phase vacuum breaker and controller; Each of said three-phase vacuum breaker comprises outlet terminal, vacuum interrupter, operating mechanism and lower wire end mutually; Said each phase vacuum circuit-breaker is outer, the sub-side of lower wire end is provided with the electronic current voltage transformer, and this electronic current voltage transformer is connected with said controller.
Further, said electronic current voltage transformer is fixed on the following outlet board between said lower wire end and the said vacuum circuit-breaker.
Wherein, said electronic current voltage transformer is coated with insulating barrier.
Further, said electronic current voltage transformer is an electronic current voltage integral type instrument transformer.
Said electronic current voltage transformer comprises electronic current mutual inductor and electronic type voltage transformer.
The high voltage power distribution switch that the utility model provides; Electromagnetic transformer through having now in the high voltage power distribution switch becomes the electronic current voltage transformer; And the electronic current voltage transformer all is set at each phase vacuum circuit-breaker; Realize the measurement of high-tension line three-phase current, voltage signal, and exported to secondary devices such as corresponding measuring instrument and protection control device.Because the electronic current voltage transformer is taked the principle of resistance or capacitance partial pressure, does not have silicon sheet core, directly measurement circuitry is to the voltage between the earth; And electronic current mutual inductor is a raw material with amorphous alloy and air core coil, has that volume is little, energy consumption is low, safe a, advantage such as measuring range is wide; Therefore problems such as the electromagnetic transformer volume is big, energy consumption is big, failure rate height have been overcome.In addition, the electronic current voltage transformer is built in the high-voltage switch gear, has effectively improved the intensity of external insulation.
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 sketch map of the high voltage power distribution switch of the built-in three-phase electronic current-voltage transformer of the utility model;
Fig. 2 is the left view of Fig. 1.
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.
Below in conjunction with accompanying drawing and embodiment the utility model is explained further details.
Like Fig. 1, shown in Figure 2; The high voltage power distribution switch of the built-in three-phase electronic current-voltage transformer that the utility model provides; Comprise three-phase vacuum breaker 10 and controller (not shown); Each of said three-phase vacuum breaker 10 comprises outlet terminal 11, vacuum interrupter 12, operating mechanism 13 and lower wire end 14 mutually; Said each phase vacuum circuit-breaker is 10 outer, sub 14 sides of lower wire end are provided with the electronic current voltage transformer 20 that is coated with insulating barrier; This electronic current voltage transformer 20 is fixed on the following outlet board 15 between lower wire end 14 and the vacuum circuit-breaker 10, and electronic current voltage transformer 20 is connected with said controller.Said electronic current voltage transformer 20 is measured distribution line three-phase currents, voltage signal, exports to controller, controller control three-phase vacuum breaker 10 deciliter.
Said electronic current voltage transformer 20 both can adopt electronic current voltage integral type instrument transformer, also can be the electronic current mutual inductor and the electronic type voltage transformer of separate type.
The high voltage power distribution switch that the utility model provides; Electromagnetic transformer through having now in the high voltage power distribution switch becomes the electronic current voltage transformer; And the electronic current voltage transformer all is set at each phase vacuum circuit-breaker; Realized the measurement of high-tension line A, B, C three-phase current, voltage signal,, significantly improved the reliability of whole high voltage power distribution switch for secondary device provides more reliable more stable basis for estimation.Because the electronic current voltage transformer is taked the principle of resistance or capacitance partial pressure, does not have silicon sheet core, directly measurement circuitry is to the voltage between the earth; And electronic current mutual inductor is a raw material with amorphous alloy and air core coil, has that volume is little, energy consumption is low, safe a, advantage such as measuring range is wide, therefore, has overcome problems such as the electromagnetic transformer volume is big, energy consumption is big, failure rate height.In addition, the electronic current voltage transformer is built in the high voltage power distribution switch, has effectively improved the intensity of external insulation.
The utility model both can be used in the solid insulation switch, also can in the gas isolated switch of SF6, realize typical application such as ZW32, ZW20 type switch.
The utility model is through setting up some functional modules; Can also realize 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 high voltage power distribution switch of a built-in three-phase electronic current-voltage transformer; Comprise three-phase vacuum breaker and controller; Each of said three-phase vacuum breaker comprises outlet terminal, vacuum interrupter, operating mechanism and lower wire end mutually; It is characterized in that said each phase vacuum circuit-breaker is outer, the sub-side of lower wire end is provided with the electronic current voltage transformer, this electronic current voltage transformer is connected with said controller.
2. according to the high voltage power distribution switch of the said built-in three-phase electronic current-voltage transformer of claim 1, it is characterized in that said electronic current voltage transformer is coated with insulating barrier.
3. according to the high voltage power distribution switch of the said built-in three-phase electronic current-voltage transformer of claim 1, it is characterized in that said electronic current voltage transformer is fixed on the following outlet board between said lower wire end and the said vacuum circuit-breaker.
4. according to the high voltage power distribution switch of the said built-in three-phase electronic current-voltage transformer of claim 1, it is characterized in that said electronic current voltage transformer is an electronic current voltage integral type instrument transformer.
5. according to the high voltage power distribution switch of the said built-in three-phase electronic current-voltage transformer of claim 1, it is characterized in that said electronic current voltage transformer comprises electronic current mutual inductor and electronic type voltage transformer.
CN2012201276725U 2012-03-28 2012-03-28 High-voltage distribution switch with built-in three-phase combined electronic current and voltage mutual inductor Expired - Lifetime CN202534938U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201276725U CN202534938U (en) 2012-03-28 2012-03-28 High-voltage distribution switch with built-in three-phase combined electronic current and voltage mutual inductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201276725U CN202534938U (en) 2012-03-28 2012-03-28 High-voltage distribution switch with built-in three-phase combined electronic current and voltage mutual inductor

Publications (1)

Publication Number Publication Date
CN202534938U true CN202534938U (en) 2012-11-14

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Family Applications (1)

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Country Status (1)

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CN (1) CN202534938U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105719896A (en) * 2016-03-28 2016-06-29 苏刚印 Side-mounting type high-voltage vacuum circuit breaker
CN105742109A (en) * 2016-03-28 2016-07-06 苏刚印 Side-mounting type high-voltage vacuum circuit breaker
CN105762007A (en) * 2016-03-28 2016-07-13 苏刚印 Side-installed high-voltage vacuum circuit breaker
CN108550493A (en) * 2018-03-30 2018-09-18 武汉市武昌电控设备有限公司 Electronic type voltage transformer is pressed in a kind of switch integrated

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105719896A (en) * 2016-03-28 2016-06-29 苏刚印 Side-mounting type high-voltage vacuum circuit breaker
CN105742109A (en) * 2016-03-28 2016-07-06 苏刚印 Side-mounting type high-voltage vacuum circuit breaker
CN105762007A (en) * 2016-03-28 2016-07-13 苏刚印 Side-installed high-voltage vacuum circuit breaker
CN108550493A (en) * 2018-03-30 2018-09-18 武汉市武昌电控设备有限公司 Electronic type voltage transformer is pressed in a kind of switch integrated

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C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20121114

DD01 Delivery of document by public notice
DD01 Delivery of document by public notice

Addressee: Yang Hai

Document name: Notice of expiration and termination of patent right