CN202996642U - Intermediate high-voltage cabinet circuit breaker electric protection interlocking device - Google Patents

Intermediate high-voltage cabinet circuit breaker electric protection interlocking device Download PDF

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Publication number
CN202996642U
CN202996642U CN 201320042344 CN201320042344U CN202996642U CN 202996642 U CN202996642 U CN 202996642U CN 201320042344 CN201320042344 CN 201320042344 CN 201320042344 U CN201320042344 U CN 201320042344U CN 202996642 U CN202996642 U CN 202996642U
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CN
China
Prior art keywords
circuit breaker
switch
fuse
closing
voltage cabinet
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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 - Fee Related
Application number
CN 201320042344
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Chinese (zh)
Inventor
郝明
佟磊
Original Assignee
郝明
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Filing date
Publication date
Application filed by 郝明 filed Critical 郝明
Priority to CN 201320042344 priority Critical patent/CN202996642U/en
Application granted granted Critical
Publication of CN202996642U publication Critical patent/CN202996642U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to an intermediate high-voltage cabinet circuit breaker electric protection interlocking device. The intermediate high-voltage cabinet circuit breaker electric protection interlocking device comprises a fuse 1RD, a closing switch SA, a microcomputer integrated protection device FJ, a circuit breaker working position switch QW, a circuit breaker test position switch QS, a grounding knife switch limit switch SW, a circuit breaker auxiliary contact QL, a circuit breaker auxiliary switch QF, a closing coil LQ, and a fuse 2RD, wherein the circuit breaker working position switch QW is connected with the circuit breaker test position switch QS in parallel, and then connected with the fuse 1RD, the closing switch SA, the microcomputer integrated protection device FJ, the grounding knife switch limit switch SW, the circuit breaker auxiliary contact QL, the circuit breaker auxiliary switch QF, the closing coil LQ and the fuse 2RD in series and then mounted between a direct current power supply +WC and a direct current power supply -WC in the loop. The 'anti-five' function of an intermediate high-voltage cabinet is more perfect, and in the actual operation, even though the mechanical interlocking protection of the high-voltage cabinet is in failure, the occurrence of malignant accidents with closing of the grounding knife is effectively avoided.

Description

The electric protective interlocking of a kind of central high-voltage cabinet circuit breaker
One, technical field:
The utility model relates to the electic protection interlock, what be specifically related to is the electric protective interlocking of a kind of central high-voltage cabinet circuit breaker.
Two, background technology:
as shown in Figure 1, the central high-voltage cabinet closing circuit of circuit breaker is by fuse 1RD at present, closing switch SA, computer integrated protection devices FJ, circuit breaker service position switch QW, circuit-breaker testing position switch QS, circuit breaker auxiliary contact QL, closing coil LQ, fuse 2RD consists of, after circuit breaker service position switch QW and circuit-breaker testing position switch QS in parallel, again with fuse 1RD, closing switch SA, computer integrated protection devices FJ, circuit breaker auxiliary contact QL, auxiliary switch for circuit breaker QF, closing coil LQ, DC power supply+WC that fuse 2RD is installed in series in this loop, between-WC.
" five is anti-" defectiveness of this central high-voltage cabinet design, the operation of circuit breaker and earthing only has the mechanical interlocking protection, and therefore, the serious accident that in use easily occurs closing a floodgate with earthing occurs.
Three, summary of the invention:
The purpose of this utility model is to provide the electric protective interlocking of a kind of central high-voltage cabinet circuit breaker, and the electric protective interlocking of this central high-voltage cabinet circuit breaker can prevent effectively that the serious accident of closing a floodgate with earthing from occuring.
the technical scheme that its technical problem that solves the utility model adopts is: the electric protective interlocking of this central high-voltage cabinet circuit breaker is by fuse 1RD, closing switch SA, computer integrated protection devices FJ, circuit breaker service position switch QW, circuit-breaker testing position switch QS, grounding switch limit switch SW, circuit breaker auxiliary contact QL, auxiliary switch for circuit breaker QF, closing coil LQ, fuse 2RD consists of, after circuit breaker service position switch QW and circuit-breaker testing position switch QS in parallel, again with fuse 1RD, closing switch SA, computer integrated protection devices FJ, grounding switch limit switch SW, circuit breaker auxiliary contact QL, auxiliary switch for circuit breaker QF, closing coil LQ, DC power supply+WC that fuse 2RD is installed in series in this loop, between-WC.
Beneficial effect:
The utility model is on the basis of former central high-voltage cabinet mechanical interlocking protection, has increased the electrical interlock protection, makes " five is anti-" function of central high-voltage cabinet have more perfect.In practical operation, even if the protection of the mechanical interlocking of high-voltage board was lost efficacy, the electrical interlock protection of increase can prevent effectively that the serious accident of closing a floodgate with earthing from occuring.
Four, description of drawings:
Fig. 1 is the structural representation of existing central high-voltage cabinet closing circuit of circuit breaker;
Fig. 2 is structural representation of the present utility model.
Five, embodiment:
Below in conjunction with accompanying drawing, the utility model is described further:
as shown in Figure 2, the electric protective interlocking of this central high-voltage cabinet circuit breaker is by fuse 1RD, closing switch SA, computer integrated protection devices FJ, circuit breaker service position switch QW, circuit-breaker testing position switch QS, grounding switch limit switch SW, circuit breaker auxiliary contact QL, auxiliary switch for circuit breaker QF, closing coil LQ, fuse 2RD consists of, after circuit breaker service position switch QW and circuit-breaker testing position switch QS in parallel, again with fuse 1RD, closing switch SA, computer integrated protection devices FJ, grounding switch limit switch SW, circuit breaker auxiliary contact QL, auxiliary switch for circuit breaker QF, closing coil LQ, DC power supply+WC that fuse 2RD is installed in series in this loop, between-WC.
During in run location or test position, carry out closing operation when circuit breaker cart, the closing switch SA that closes, if grounding switch at closing position, grounding switch limit switch SW normally-closed contact disconnects, circuit breaker can't close.Only have the disconnection grounding switch, grounding switch limit switch SW normally-closed contact is closed, and circuit breaker all can close a floodgate in test position and run location.

Claims (1)

1. electric protective interlocking of central high-voltage cabinet circuit breaker, it is characterized in that: the electric protective interlocking of this central high-voltage cabinet circuit breaker is by fuse 1RD, closing switch SA, computer integrated protection devices FJ, circuit breaker service position switch QW, circuit-breaker testing position switch QS, grounding switch limit switch SW, circuit breaker auxiliary contact QL, auxiliary switch for circuit breaker QF, closing coil LQ, fuse 2RD consists of, after circuit breaker service position switch QW and circuit-breaker testing position switch QS in parallel, again with fuse 1RD, closing switch SA, computer integrated protection devices FJ, grounding switch limit switch SW, circuit breaker auxiliary contact QL, auxiliary switch for circuit breaker QF, closing coil LQ, DC power supply+WC that fuse 2RD is installed in series in this loop, between-WC.
CN 201320042344 2013-01-12 2013-01-12 Intermediate high-voltage cabinet circuit breaker electric protection interlocking device Expired - Fee Related CN202996642U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320042344 CN202996642U (en) 2013-01-12 2013-01-12 Intermediate high-voltage cabinet circuit breaker electric protection interlocking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320042344 CN202996642U (en) 2013-01-12 2013-01-12 Intermediate high-voltage cabinet circuit breaker electric protection interlocking device

Publications (1)

Publication Number Publication Date
CN202996642U true CN202996642U (en) 2013-06-12

Family

ID=48567785

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320042344 Expired - Fee Related CN202996642U (en) 2013-01-12 2013-01-12 Intermediate high-voltage cabinet circuit breaker electric protection interlocking device

Country Status (1)

Country Link
CN (1) CN202996642U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114336771A (en) * 2022-03-07 2022-04-12 澄瑞电力科技(上海)有限公司 Self-adaptive control shipborne shore power rapid parallel operation system and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114336771A (en) * 2022-03-07 2022-04-12 澄瑞电力科技(上海)有限公司 Self-adaptive control shipborne shore power rapid parallel operation system and method
CN114336771B (en) * 2022-03-07 2022-07-26 澄瑞电力科技(上海)有限公司 Self-adaptive control shipborne shore power rapid parallel operation system and method

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130612

Termination date: 20140112