CN202502955U - Circuit breaker device - Google Patents

Circuit breaker device Download PDF

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Publication number
CN202502955U
CN202502955U CN2012201221563U CN201220122156U CN202502955U CN 202502955 U CN202502955 U CN 202502955U CN 2012201221563 U CN2012201221563 U CN 2012201221563U CN 201220122156 U CN201220122156 U CN 201220122156U CN 202502955 U CN202502955 U CN 202502955U
Authority
CN
China
Prior art keywords
circuit breaker
terminal
electrically
casing
leading
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
CN2012201221563U
Other languages
Chinese (zh)
Inventor
凌斯
陈添
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.)
ZHEJIANG LINGAO ELECTRICAL INDUSTRIAL Co Ltd
Original Assignee
ZHEJIANG LINGAO ELECTRICAL INDUSTRIAL 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 ZHEJIANG LINGAO ELECTRICAL INDUSTRIAL Co Ltd filed Critical ZHEJIANG LINGAO ELECTRICAL INDUSTRIAL Co Ltd
Priority to CN2012201221563U priority Critical patent/CN202502955U/en
Application granted granted Critical
Publication of CN202502955U publication Critical patent/CN202502955U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

Disclosed is a circuit breaker device which comprises a box body, a circuit breaker and a disconnecting switch. The box body is fixed on a telegraph pole bracket and is provided with an incoming terminal wiring board and an outgoing terminal wiring board; the circuit breaker is arranged on the box body and is provided with a circuit breaker incoming terminal and a circuit breaker outgoing terminal; and the disconnecting switch is electrically connected with the circuit breaker. In addition, an incoming terminal of the disconnecting switch is electrically connected with the incoming terminal wiring board, an outgoing terminal of the disconnecting switch is electrically connected with the circuit breaker incoming terminal, and the circuit breaker outgoing terminal is electrically connected with the outgoing terminal wiring board. The circuit breaker device provided by the utility model has the advantages of long service life and convenient maintenance.

Description

A kind of release unit
Technical field
The utility model relates to the power transmission and distribution switchgear, particularly a kind of release unit.
Background technology
Primary cut-out (or claim high-voltage switch gear) it not only can cut off or the closed high circuit in no-load current and load current; And the effect through protective relaying device when system breaks down; Cut off overload electric current and short circuit current, it has quite perfect arc extinguishing structure and enough cutout abilities.Breaker structure is comparatively complicated, and cost is higher, therefore, needs that in practical application extra device is installed circuit breaker is protected, and avoids economic loss.
The disconnecting link isolating switch is as a kind of breaker protection device, and its operation principle and structure are all fairly simple, and can not have realization branch under the situation of load current, close circuit, and cheap for manufacturing cost.The supporting isolating switch of a kind of pole vacuum circuit breaker is disclosed like Chinese patent document CN2598120Y; With the shared underframe of vacuum circuit-breaker summation current transformer on be installed with on insulated leg and operating axis, the operating axis and be fixed with two connecting rods; One of which and insulated tension pole bottom are hinged, and another connecting rod is hinged with the centering spring device that is hinged on underframe; Hinged one isolates knife plate on the insulated leg; The contact of the current transformer that the isolation knife plate other end links to each other with vacuum circuit-breaker is electrically connected; The insulated tension pole top is hinged with the stage casing that isolates knife plate; Be fixedly connected a motion arm in the outer end of operating axis; In the underframe outside one interlock plate is arranged, this junction panel links to each other with the drive stay of vacuum circuit-breaker.
Yet not enough below above-mentioned isolating switch exists: 1. isolate knife plate and be electrically connected with outlet contact on the current transformer that vacuum circuit-breaker links to each other, no matter circuit breaker is in separating brake or "on" position with the isolation knife plate; The end of incoming cables of circuit breaker is charged all the time; Be unfavorable for the maintenance and the maintenance of circuit breaker, simultaneously, circuit breaker is in electriferous state for a long time; Be unfavorable for protective circuit breaker, influence the useful life of circuit breaker; 2. the position that isolates knife plate and current transformer is adjacent, understands the installation connection and the regular maintenance of disturbance current instrument transformer, has increased the maintenance difficulty of current transformer.
The utility model content
The utility model technical problem to be solved is long and maintenance inconvenience of circuit breaker life-span of the prior art, and provides a kind of life-span long and overhaul release unit easily.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is following:
A kind of release unit comprises:
Casing is fixed with the electric pole support, and said casing is provided with end of incoming cables terminal block and leading-out terminal terminal block;
Circuit breaker is arranged on the said casing, and said circuit breaker has circuit breaker end of incoming cables and circuit breaker leading-out terminal;
Isolating switch is connected with said circuit breaker electric;
The end of incoming cables of said isolating switch is electrically connected with said end of incoming cables terminal block, and the leading-out terminal of said isolating switch is electrically connected with said circuit breaker end of incoming cables, and said circuit breaker leading-out terminal is electrically connected with said leading-out terminal terminal block.
In the above-mentioned release unit, be connected with current transformer between said circuit breaker leading-out terminal and the said leading-out terminal terminal block.
In the above-mentioned release unit, said isolating switch comprises:
Switch, the one of which end is electrically connected with said circuit breaker end of incoming cables, but the other end is electrically connected with the terminal block disjunction of said end of incoming cables.
In the above-mentioned release unit, said isolating switch also comprises:
Support is fixed on the said casing;
First operating grip is rotatably mounted on the said support;
Insulated tension pole, its two ends are hinged on respectively on said support and the said switch.
In the above-mentioned release unit, said casing is provided with second operating grip that is used to realize the manual divide-shut brake of said circuit breaker.
In the above-mentioned release unit, said casing is provided with the energy storage handle.
In the above-mentioned release unit, said casing is provided with a deciliter indication piece.
The technique scheme of the utility model is compared prior art and is had the following advantages:
1. the release unit of the utility model, the end of incoming cables of isolating switch is electrically connected with the end of incoming cables terminal block, and the leading-out terminal of isolating switch is electrically connected with the circuit breaker end of incoming cables, and the circuit breaker leading-out terminal is electrically connected with the leading-out terminal terminal block.When isolating switch was in gate-dividing state, circuit breaker integral body was in electronegative potential, helped circuit breaker is protected, and improved the useful life of circuit breaker; And, when circuit breaker and isolating switch are in gate-dividing state simultaneously, formed a tangible isolation fracture between circuit breaker and the isolating switch, can install, safeguard and overhaul circuit breaker relievedly, reduce the maintenance difficulty of circuit breaker this moment.
2. the release unit of the utility model is connected with current transformer between circuit breaker leading-out terminal and the leading-out terminal terminal block.Isolating switch and current transformer are installed in the inlet wire and the outlet two ends of circuit breaker respectively, when maintenance, can not influence each other, and are convenient to the maintenance of current transformer and isolating switch.
3. the release unit of the utility model, isolating switch comprises switch, an end of switch is electrically connected with the circuit breaker end of incoming cables, but the other end is electrically connected with end of incoming cables terminal block disjunction.Switch is simple to operate and with low cost, is used in the structure that can simplify release unit on the isolating switch, practices thrift cost.
4. the release unit of the utility model, casing is provided with second operating grip.When the automatic divide-shut brake system of circuit breaker breaks down, utilize second operating grip can realize the manual divide-shut brake of circuit breaker, increased the reliability of release unit.
5. the release unit of the utility model, casing is provided with the energy storage handle.The energy storage handle can manually carry out energy storage, thereby promotes the speed that circuit breaker closes the tripping operation process, thereby reduces the duration of electric arc.
6. the release unit of the utility model, casing is provided with a deciliter indication piece.Such design makes the technical staff under the situation that does not rely on monitoring tool, monitor deciliter state of circuit breaker at any time.
Description of drawings
For the content that makes the utility model is more clearly understood,, the utility model is done further detailed explanation, wherein below according to the specific embodiment of the utility model and combine accompanying drawing
Fig. 1 is the structural representation of the utility model release unit embodiment;
Fig. 2 is the left view of Fig. 1.
Reference numeral is expressed as among the figure: 1-end of incoming cables terminal block, 2-leading-out terminal terminal block, 3-current transformer, 4-control cabinet, 5-second operating grip; 6-energy storage handle, 7-deciliter indication piece, 8-casing, 10-circuit breaker; 11-circuit breaker end of incoming cables, 12-circuit breaker leading-out terminal, 20-isolating switch, 21-support; 22-first operating grip, 23-insulated tension pole, 24-post insulator, 25-switch.
Embodiment
Shown in Fig. 1-2, be the preferred embodiment of the said release unit of the utility model.Said release unit comprises: casing 8 and be arranged on circuit breaker 10, isolating switch 20 summation current transformers 3 on the said casing 8.In the present embodiment, said circuit breaker 10 is a kind of outdoor high-voltage vacuum breaker.
Said casing 8 is fixed with the electric pole support, and said casing 8 is provided with end of incoming cables terminal block 1 and leading-out terminal terminal block 2.In the present embodiment, form four bolts hole on the said casing 8, said casing 8 is fixed through bolt and electric pole support.Said casing 8 is provided with second operating grip 5, energy storage handle 6, deciliter indication piece 7 and control cabinet 4.Said second operating grip 5 can be used for realizing the manual divide-shut brake of said circuit breaker 10; Said energy storage handle 6 can be used for manual energy storage, thereby promotes the speed that circuit breaker closes the tripping operation process, thereby reduces the duration of electric arc; Said deciliter indication piece 7 can make the technical staff under the situation that does not rely on monitoring tool, monitors deciliter state of circuit breaker at any time; The various instrument that is used to monitor working state of circuit breaker is installed in the said control cabinet 4, monitors the detailed operation state of said release unit for the technical staff.
Said circuit breaker 10 has circuit breaker end of incoming cables 11 and circuit breaker leading-out terminal 12, and said isolating switch 20 is electrically connected with said circuit breaker 10.The end of incoming cables of said isolating switch 20 is electrically connected with said end of incoming cables terminal block 1, and the leading-out terminal of said isolating switch 20 is electrically connected with said circuit breaker end of incoming cables 11, and said circuit breaker leading-out terminal 12 is electrically connected with said leading-out terminal terminal block 2.In the present embodiment, be connected with current transformer 3 between said circuit breaker leading-out terminal 12 and the said leading-out terminal terminal block 2.
Said isolating switch 20 comprises: switch 25, support 21, first operating grip 22, insulated tension pole 23 and post insulator 24.
One end of said switch 25 is electrically connected with said circuit breaker end of incoming cables 11, but the other end is electrically connected with terminal block 1 disjunction of said end of incoming cables; Said support 21 is fixed on the said casing 8; Said first operating grip 22 is rotatably mounted on the said support 21; The two ends of said insulated tension pole 23 are hinged on respectively on said support 21 and the said switch 25; The two ends of said post insulator 24 are fixed with the end of incoming cables of said support 21 and said isolating switch 20 respectively.
In the present embodiment, be provided with five anti-interlocks between said circuit breaker 10 and the said isolating switch 20, this device can guarantee that when said circuit breaker 10 was in closing position, the technical staff cannot operate said isolating switch 20.
In other embodiments, said circuit breaker 10 can also be air type circuit breaker or SF 6Other types such as circuit breaker can realize the purpose of the utility model equally.
In other embodiments, can six or eight bolts hole of moulding on the said casing 8, can realize the purpose of the utility model equally.
In other embodiments, on the said casing 8 said control cabinet 4 can be set, various instrument can be directly installed on the operating desk of said casing 8 outsides.
In other embodiments; Said release unit can comprise two said current transformers 3; Said current transformer 3 is separately positioned between said circuit breaker leading-out terminal 12 and the said leading-out terminal terminal block 2; And between the end of incoming cables of said isolating switch 20 and the said end of incoming cables terminal block 1,, improved protection effect to said circuit breaker 10 though increased the cost of said release unit.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to execution mode.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And conspicuous variation of being extended out thus or change still are among the protection range of the utility model creation.

Claims (7)

1. release unit comprises:
Casing (8) is fixed with the electric pole support, and said casing (8) is provided with end of incoming cables terminal block (1) and leading-out terminal terminal block (2);
Circuit breaker (10) is arranged on the said casing (8), and said circuit breaker (10) has circuit breaker end of incoming cables (11) and circuit breaker leading-out terminal (12);
Isolating switch (20) is electrically connected with said circuit breaker (10);
It is characterized in that: the end of incoming cables of said isolating switch (20) is electrically connected with said end of incoming cables terminal block (1); The leading-out terminal of said isolating switch (20) is electrically connected with said circuit breaker end of incoming cables (11), and said circuit breaker leading-out terminal (12) is electrically connected with said leading-out terminal terminal block (2).
2. release unit according to claim 1 is characterized in that: be connected with current transformer (3) between said circuit breaker leading-out terminal (12) and the said leading-out terminal terminal block (2).
3. release unit according to claim 2 is characterized in that: said isolating switch (20) comprises,
Switch (25), the one of which end is electrically connected with said circuit breaker end of incoming cables (11), the other end with said end of incoming cables terminal block (1) but disjunction be electrically connected.
4. release unit according to claim 3 is characterized in that: said isolating switch (20) also comprises,
Support (21) is fixed on the said casing (8);
First operating grip (22) is rotatably mounted on the said support (21);
Insulated tension pole (23), its two ends are hinged on respectively on said support (21) and the said switch (25).
5. according to the arbitrary described release unit of claim 1-4, it is characterized in that: said casing (8) is provided with and is used to realize manually second operating grip (5) of divide-shut brake of said circuit breaker (10).
6. release unit according to claim 5 is characterized in that: said casing (8) is provided with energy storage handle (6).
7. release unit according to claim 6 is characterized in that: said casing (8) is provided with a deciliter indication piece (7).
CN2012201221563U 2012-03-28 2012-03-28 Circuit breaker device Expired - Fee Related CN202502955U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201221563U CN202502955U (en) 2012-03-28 2012-03-28 Circuit breaker device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201221563U CN202502955U (en) 2012-03-28 2012-03-28 Circuit breaker device

Publications (1)

Publication Number Publication Date
CN202502955U true CN202502955U (en) 2012-10-24

Family

ID=47039563

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012201221563U Expired - Fee Related CN202502955U (en) 2012-03-28 2012-03-28 Circuit breaker device

Country Status (1)

Country Link
CN (1) CN202502955U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105845477A (en) * 2016-06-06 2016-08-10 柳州市海格电气有限公司 Method for manufacturing 500kV isolation switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105845477A (en) * 2016-06-06 2016-08-10 柳州市海格电气有限公司 Method for manufacturing 500kV isolation switch

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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: 20121024

Termination date: 20170328