CN204905103U - One closes two disconnected electrical interlockss - Google Patents

One closes two disconnected electrical interlockss Download PDF

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Publication number
CN204905103U
CN204905103U CN201520230694.8U CN201520230694U CN204905103U CN 204905103 U CN204905103 U CN 204905103U CN 201520230694 U CN201520230694 U CN 201520230694U CN 204905103 U CN204905103 U CN 204905103U
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CN
China
Prior art keywords
circuit
breaker
circuit breakers
normally
electrical
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 - Fee Related
Application number
CN201520230694.8U
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Chinese (zh)
Inventor
郑斌
Original Assignee
徐云峰
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 徐云峰 filed Critical 徐云峰
Priority to CN201520230694.8U priority Critical patent/CN204905103U/en
Application granted granted Critical
Publication of CN204905103U publication Critical patent/CN204905103U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an one closes two disconnected electrical interlockss, including the electrical interlocks that 3 circuit breakers are constituteed, under voltage release and circuit breaker auxiliary contact normally closed contact's connected mode, the beneficial effects of the utility model are that: utilize under voltage release that circuit breaker itself has and auxiliary contact's electrical interlocks, can be not only simple but also solve the not enough of current electrical interlocks and the chain existence of machinery reliably, practiced thrift switch board body space, greatly reduced the manufacturing cost of the low -voltage distribution cabinet body.

Description

One closes two disconnected electrical interlockss
Technical field
The utility model relates to power supply unit and improves field, particularly one closes two disconnected electrical interlockss.
Background technology
Along with the raising of national life level, increasing and the continuous increase of power load of power consumption equipment, reliability and the security requirement of electricity consumption are also more and more higher.Single transformer or circuit power supply power mode can not meet instructions for use in the past, and the power supply generally having now two groups or more is powered, and carried out with continuing of ensureing to power.In power supply process, two groups of power requirements must be separated operation, in order to prevent unexpected parallel connection, need to arrange electrical interlocks between any two at each mains side service entrance switch and bus connection switch.At present, a lot of electrical interlocks is controlled by PLC or Single Chip Microcomputer (SCM) program, and connecting line is loaded down with trivial details and complicated, reliability is reduced and cost raising; Or just install mechanical lock on-board the circuit breaker, its mechanical chain installs the restriction by distance and orientation, and cost is high, it is inconvenient to install.
Circuit breaker, as the main switch of the electric control system power supplys such as switch cubicle and protection component, plays the part of very important role in electric control system.In existing electric control system, majority employs multiple stage circuit breaker conversion and control, to ensure uninterrupted power supply.In order to ensure that each road current supply circuit is separated, preventing side by side unexpected, interlock must be used to prevent unexpected generation.
In existing electric control system, existing multiple electrical interlocking device, but it is loaded down with trivial details all to there is design, controls the defects such as unreliable; And mechanical chain installs inconvenient and cost is higher.And the utility model utilize circuit breaker itself with device for under-voltage releasing equipment and the electrical interlocking device of auxiliary contact, can be not only simple but also reliably solve the deficiency that existing electrical interlocks and mechanical chain exist.
Utility model content
The purpose of this utility model is to solve the problem, and devises and realizes deficient electrical interlocks with the combination of 3 circuit breakers.
Of the present utility model one closes two disconnected electrical interlockss, and the electrical interlocks comprising 3 circuit breakers realizes one normally closed two and often opens, and under-voltage release and another two auxiliary contact of breaker normally-closed contacts of any one form series circuit; 3 its normally-closed contact is in closure state when being all in gate-dividing state, make the under-voltage release of D1, D2, D3 all electric and adhesive, now any circuit breaker all can close a floodgate; When after the breaker closing of 1 in 3 circuit breakers, now 2 circuit breaker under-voltage releases being in gate-dividing state discharge because of power-off, and its push rod unshakable in one's determination withstands the dropout semiaxis of breaker mechanism, and 2 circuit breakers all cannot be closed a floodgate; When only having 3 circuit breakers to be all in separating brake, the normally-closed contact of its auxiliary contact closes, and any circuit breaker now in other 2 circuit breakers can carry out closing operation.
Compared with prior art the beneficial effects of the utility model are: utilize the electrical interlocks that the technical solution of the utility model makes, and realize one normally closed two and often open, not only simple but also reliably solve the deficiency that existing electrical interlocks and mechanical chain exist.
Accompanying drawing explanation
Fig. 1 is electrical interlocks principle described in the utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
As shown in the figure, of the present utility model one closes two disconnected electrical interlockss, and the electrical interlocks comprising 3 circuit breakers realizes one normally closed two and often opens, and under-voltage release and another two auxiliary contact of breaker normally-closed contacts of any one form series circuit; 3 its normally-closed contact is in closure state when being all in gate-dividing state, make the under-voltage release of D1, D2, D3 all electric and adhesive, now any circuit breaker all can close a floodgate; When after the breaker closing of 1 in 3 circuit breakers, now 2 circuit breaker under-voltage releases being in gate-dividing state discharge because of power-off, and its push rod unshakable in one's determination withstands the dropout semiaxis of breaker mechanism, and 2 circuit breakers all cannot be closed a floodgate; When only having 3 circuit breakers to be all in separating brake, the normally-closed contact of its auxiliary contact closes, and any circuit breaker now in other 2 circuit breakers can carry out closing operation; Utilize the electrical interlocks that the technical solution of the utility model makes, realize one normally closed two and often open, not only simple but also reliably solve the deficiency that existing electrical interlocks and mechanical chain exist.
Technique scheme only embodies the optimal technical scheme of technical solutions of the utility model; those skilled in the art all embody principle of the present utility model to some variations that wherein some part may be made, and belong within protection range of the present utility model.

Claims (1)

1. one close two disconnected electrical interlockss, it is characterized in that, the electrical interlocks comprising 3 circuit breakers realizes one normally closed two and often opens, and under-voltage release and another two auxiliary contact of breaker normally-closed contacts of any one form series circuit; 3 its normally-closed contact is in closure state when being all in gate-dividing state, make the under-voltage release of D1, D2, D3 all electric and adhesive, now any circuit breaker all can close a floodgate; When after the breaker closing of 1 in 3 circuit breakers, now 2 circuit breaker under-voltage releases being in gate-dividing state discharge because of power-off, and its push rod unshakable in one's determination withstands the dropout semiaxis of breaker mechanism, and 2 circuit breakers all cannot be closed a floodgate; When only having 3 circuit breakers to be all in separating brake, the normally-closed contact of its auxiliary contact closes, and any circuit breaker now in other 2 circuit breakers can carry out closing operation.
CN201520230694.8U 2015-04-17 2015-04-17 One closes two disconnected electrical interlockss Expired - Fee Related CN204905103U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520230694.8U CN204905103U (en) 2015-04-17 2015-04-17 One closes two disconnected electrical interlockss

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520230694.8U CN204905103U (en) 2015-04-17 2015-04-17 One closes two disconnected electrical interlockss

Publications (1)

Publication Number Publication Date
CN204905103U true CN204905103U (en) 2015-12-23

Family

ID=54927262

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520230694.8U Expired - Fee Related CN204905103U (en) 2015-04-17 2015-04-17 One closes two disconnected electrical interlockss

Country Status (1)

Country Link
CN (1) CN204905103U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110534368A (en) * 2019-09-06 2019-12-03 贵州泰永长征技术股份有限公司 With the interlock circuit of long distance safety interlock function between a kind of breaker for multiple power supplies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110534368A (en) * 2019-09-06 2019-12-03 贵州泰永长征技术股份有限公司 With the interlock circuit of long distance safety interlock function between a kind of breaker for multiple power supplies

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151223

Termination date: 20170417