CN204792535U - Disconnected electrical interlocks of an unification - Google Patents

Disconnected electrical interlocks of an unification Download PDF

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Publication number
CN204792535U
CN204792535U CN201520230426.6U CN201520230426U CN204792535U CN 204792535 U CN204792535 U CN 204792535U CN 201520230426 U CN201520230426 U CN 201520230426U CN 204792535 U CN204792535 U CN 204792535U
Authority
CN
China
Prior art keywords
electrical interlocks
circuit breaker
breaker
normally
closed
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
CN201520230426.6U
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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 CN201520230426.6U priority Critical patent/CN204792535U/en
Application granted granted Critical
Publication of CN204792535U publication Critical patent/CN204792535U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a disconnected electrical interlocks of an unification, in the electrical interlocks that 2 circuit breakers are constituteed, under voltage release and circuit breaker auxiliary contact normally closed contact's series system, 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

The disconnected electrical interlocks of one unification
Technical field
The utility model relates to power supply unit and improves field, particularly the disconnected electrical interlocks of a unification.
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.
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 electrical interlocks with the combination of 2 circuit breakers.
Principle of the present utility model is by the efficient combination to under-voltage release and auxiliary contact, realizes electrical interlocks function.
The disconnected electrical interlocks of a unification of the present utility model, comprises 2 circuit breakers one and often opens a normally closed electrical interlocks; In the electrical interlocks of 2 circuit breakers composition, under-voltage release Q1, Q2 and the auxiliary contact of another circuit breaker normally closed go out some C2, a C1 connect; When 2 circuit breakers are all in gate-dividing state, the normally-closed contact of auxiliary contact is in closure state, can make the under-voltage release of two circuit breakers all electric and adhesive, now, any circuit breaker all can carry out closing operation; But when after a wherein breaker closing, normally-closed contact disconnects, the under-voltage release of another circuit breaker of normally-closed contact series connection therewith discharges because of power-off, and its intimate middle push rod withstands the dropout semiaxis of breaker mechanism, thus this circuit breaker cannot be closed a floodgate; Only have when after another breaker open operation, the normally closed point of auxiliary contact closes, and after making under-voltage release adhesive, this circuit breaker can carry out closing operation.
Utilize the electrical interlocks that the technical solution of the utility model makes, only have when after another breaker open operation, the normally-closed contact of auxiliary contact closes, after making under-voltage release adhesive, this circuit breaker can carry out closing operation, thus ensure that the separation of two circuit breakers runs, prevent from surprisingly occurring simultaneously.
Accompanying drawing explanation
Fig. 1 is electrical interlocks principle described in the utility model.
Embodiment
Be specifically described the utility model below in conjunction with accompanying drawing, Fig. 1 is the schematic diagram of under-voltage release electrical interlocks described in the utility model.As shown in the figure, in the electrical interlocks of 2 circuit breakers D1, D2 composition, under-voltage release Q1, Q2 and the auxiliary contact of another circuit breaker normally closed go out some C2, a C1 connect.When 2 circuit breakers are all in gate-dividing state, the normally-closed contact of auxiliary contact is in closure state, can make the under-voltage release of two circuit breakers all electric and adhesive, now, any circuit breaker all can carry out closing operation.But when after a wherein breaker closing, normally-closed contact disconnects, the under-voltage release of another circuit breaker of normally-closed contact series connection therewith discharges because of power-off, and in its iron core, push rod withstands the dropout semiaxis of breaker mechanism, thus this circuit breaker cannot be closed a floodgate.Only have when after another breaker open operation, the normally closed point of auxiliary contact closes, and after making under-voltage release adhesive, this circuit breaker can carry out closing operation.
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. the disconnected electrical interlocks of a unification, is characterized in that, comprise 2 circuit breakers one and often open a normally closed electrical interlocks; In the electrical interlocks of 2 circuit breakers composition, under-voltage release Q1, Q2 and the auxiliary contact of another circuit breaker normally closed go out some C2, a C1 connect; When 2 circuit breakers are all in gate-dividing state, the normally-closed contact of auxiliary contact is in closure state, can make the under-voltage release of two circuit breakers all electric and adhesive, now, any circuit breaker all can carry out closing operation; But when after a wherein breaker closing, normally-closed contact disconnects, the under-voltage release of another circuit breaker of normally-closed contact series connection therewith discharges because of power-off, and its intimate middle push rod withstands the dropout semiaxis of breaker mechanism, thus this circuit breaker cannot be closed a floodgate; Only have when after another breaker open operation, the normally closed point of auxiliary contact closes, and after making under-voltage release adhesive, this circuit breaker can carry out closing operation.
CN201520230426.6U 2015-04-17 2015-04-17 Disconnected electrical interlocks of an unification Expired - Fee Related CN204792535U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520230426.6U CN204792535U (en) 2015-04-17 2015-04-17 Disconnected electrical interlocks of an unification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520230426.6U CN204792535U (en) 2015-04-17 2015-04-17 Disconnected electrical interlocks of an unification

Publications (1)

Publication Number Publication Date
CN204792535U true CN204792535U (en) 2015-11-18

Family

ID=54532534

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520230426.6U Expired - Fee Related CN204792535U (en) 2015-04-17 2015-04-17 Disconnected electrical interlocks of an unification

Country Status (1)

Country Link
CN (1) CN204792535U (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: 20151118

Termination date: 20170417