CN203553028U - Under-voltage and no-voltage protection device for vacuum circuit breaker - Google Patents

Under-voltage and no-voltage protection device for vacuum circuit breaker Download PDF

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Publication number
CN203553028U
CN203553028U CN201320329333.XU CN201320329333U CN203553028U CN 203553028 U CN203553028 U CN 203553028U CN 201320329333 U CN201320329333 U CN 201320329333U CN 203553028 U CN203553028 U CN 203553028U
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CN
China
Prior art keywords
voltage
under
decompression
breaker
protection
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
CN201320329333.XU
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Chinese (zh)
Inventor
殷长风
吴夕球
盛琴琴
陈蒋红
何源
胡东旭
史晓光
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Anhui Xinlong Electrical Co Ltd
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Anhui Xinlong Electrical 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 Anhui Xinlong Electrical Co Ltd filed Critical Anhui Xinlong Electrical Co Ltd
Priority to CN201320329333.XU priority Critical patent/CN203553028U/en
Application granted granted Critical
Publication of CN203553028U publication Critical patent/CN203553028U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a under-voltage and no-voltage protection device for vacuum circuit breaker. The protection device comprises a multi-channel separator plate (1), a horizontal connecting shaft (2) to pass the multi-channel separator plate (1) and a sub-gate half-shaft (3) mounted on the connecting shaft (2), and the protection device also comprises an under-voltage and no-voltage release (5) in a conductive state through being energized. The bottom of the under-voltage and no-voltage release (5) is connected with one-channel separator plate (1), the top of the under-voltage and no-voltage release (5) bears against a top plate (7) which is connected with the connecting shaft (2), and the under-voltage and no-voltage release (5) of the protection device is connected with a circuit of electrical equipment. The novel under-voltage and no-voltage protection device of the utility model has advantages of simple structure, the convenient installation, convenient operation and less maintenance. When the phenomenon of under-voltage or no-voltage occurs, the protection device can be ensured that a vacuum circuit breaker is automatically separated brake and a power is cut off, the reliability of the separated brake is high under the under-voltage and no-voltage, thus ensuring the safety of a power control apparatus and the production safety.

Description

The under-voltage no-voltage protection device of a kind of vacuum circuit-breaker
Technical field
The utility model belongs to middle pressure vacuum circuit-breaker field, more particularly, relates to the under-voltage no-voltage protection device of a kind of vacuum circuit-breaker.
Background technology
Due to reasons such as short troubles, can there is significantly reducing the phenomenon even disappearing in line voltage distribution at short notice.It can bring damage to circuit and electric equipment.For example: make that motor tiredly falls, stall, thereby produce the overcurrent that is several times as much as rated current, burn out motor; When voltage recovers, the self-starting of a large amount of motor can make again the voltage of motor significantly decline, and works the mischief.This just requires, when there is under-voltage, decompression phenomenon, can effectively cut off the electricity supply, and prevents the generation of harm.Middle pressure vacuum circuit-breaker is the main electric control appliance of power plant, electric substation, has arc quenching characteristic, and when system is normally moved, it can cut off and connect zero load and the load current of circuit and various electric equipments; When system breaks down, energy is disengagement failure electric current rapidly, to prevent expansion accident scope.But vacuum circuit-breaker of the prior art, can not effectively guarantee vacuum circuit-breaker meeting automatic brake separating when there is under-voltage decompression phenomenon, cuts off the electricity supply.
Utility model content
Technical problem to be solved in the utility model is: for the deficiencies in the prior art; provide a kind of can vacuum circuit-breaker when there is under-voltage decompression phenomenon vacuum circuit-breaker automatic brake separating; cut off the electricity supply, thereby guarantee the under-voltage no-voltage protection device of vacuum circuit-breaker of electric control appliance safety and production safety.
Solve above-described technical problem, the technical scheme that the utility model is taked is:
The utility model is the under-voltage no-voltage protection device of a kind of vacuum circuit-breaker; described protective device comprises multiple tracks dividing plate; horizontally disposed connecting axle is through multiple tracks dividing plate; separating brake semiaxis is arranged on connecting axle; described protective device also comprises the under-voltage decompression mistake button device that can obtain electric adhesive; under-voltage decompression is lost button device bottom dividing plate together with wherein and is connected; described under-voltage decompression is lost button device top and is resisted against on the top board being connected with connecting axle, and the under-voltage decompression of described protective device is lost button device and is connected with electric equipment circuit.
Preferably, when the actual voltage value of the circuit of described electric equipment be greater than rated voltage 85% time, described under-voltage decompression is lost button device and is obtained electric adhesive, under-voltage decompression is lost the structure that button device top is set to unclamp top board, when the actual voltage value of the circuit of described electric equipment be less than rated voltage 85% time, described under-voltage decompression is lost button device and is failure to actuate, and under-voltage decompression is lost button device top and held out against on top board.
Preferably, between described multiple tracks dividing plate, be set to the structure of arranging by gap, multiple tracks dividing plate is all set to vertically arranged structure, between described connecting axle and multiple tracks dividing plate, is flexibly connected, top board is flexibly connected with connecting axle, and separating brake semiaxis is fixedly connected with connecting axle.
Preferably, described protective device also comprises bent plate, and described bent plate comprises bent plate body and kink, between kink and dividing plate, is bolted, and bent plate body is horizontal arrangement, and under-voltage decompression is lost button device and is fixedly mounted on bent plate body.
Adopt the technical solution of the utility model, can obtain following beneficial effect:
The under-voltage no-voltage protection device of vacuum circuit-breaker of the present utility model; simple in structure; protective device is easy for installation, and operation is convenient, while there is under-voltage decompression phenomenon; when the actual voltage value of the circuit of electric equipment be greater than rated voltage 85% time; under-voltage decompression lose button device 5 electric adhesive, under-voltage decompression is lost button device 5 tops and is unclamped top board, when the actual voltage value of the circuit of electric equipment be less than rated voltage 85% time; under-voltage decompression is lost button device 5 and is failure to actuate, and under-voltage decompression is lost button device 5 tops and held out against on top board 7.By such structure, arrange, protective device of the present utility model can be guaranteed vacuum circuit-breaker automatic brake separating, cuts off the electricity supply, and under under-voltage decompression, separating brake reliability is high, few maintenance, thus guarantee electric control appliance safety and production safety.
Accompanying drawing explanation
The expressed content of each accompanying drawing of this specification and the mark in figure are made to brief description below:
Fig. 1 is the structural representation of under-voltage no-voltage protection device for vacuum circuit-breaker described in the utility model;
The sectional structure schematic diagram of Fig. 2 A-A face when under-voltage decompression state (vacuum circuit-breaker energising or voltage are less than 70% rated voltage) that is vacuum circuit-breaker described in Fig. 1 with under-voltage no-voltage protection device;
The sectional structure schematic diagram of Fig. 3 A-A face when normal operating conditions (vacuum circuit-breaker energising or voltage are more than or equal to 85% rated voltage) that is vacuum circuit-breaker described in Fig. 1 with under-voltage no-voltage protection device;
Mark in accompanying drawing: 1, dividing plate; 2, connecting axle; 3, separating brake semiaxis; 4, bolt; 5, under-voltage decompression is lost button device; 6, bent plate; 7, top board; 8, bent plate body; 9, kink.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, embodiment of the present utility model is described in further detail as the effect of the mutual alignment between the shape of each related member, structure, each several part and annexation, each several part and operation principle etc.:
As shown in accompanying drawing 1-accompanying drawing 3, the utility model is the under-voltage no-voltage protection device of a kind of vacuum circuit-breaker, described protective device comprises multiple tracks dividing plate 1, horizontally disposed connecting axle 2 is through multiple tracks dividing plate 1, separating brake semiaxis 3 is arranged on connecting axle 2, described protective device also comprises the under-voltage decompression mistake button device 5 that can obtain electric adhesive, under-voltage decompression is lost button device 5 bottoms dividing plate 1 together with wherein and is connected, described under-voltage decompression is lost button device 5 tops and is resisted against on the top board 7 being connected with connecting axle 2, the under-voltage decompression of described protective device is lost button device 5 and is connected with electric equipment circuit.
Preferably, between described multiple tracks dividing plate 1, be set to the structure of arranging by gap, multiple tracks dividing plate 1 is all set to vertically arranged structure, between described connecting axle 2 and multiple tracks dividing plate 1, is flexibly connected, top board 7 is flexibly connected with connecting axle 2, and separating brake semiaxis 3 is fixedly connected with connecting axle 2.
Preferably, when the actual voltage value of the circuit of described electric equipment be greater than rated voltage 85% time, described under-voltage decompression is lost button device 5 and is obtained electric adhesive, under-voltage decompression is lost the structure that button device 5 tops are set to unclamp top board, when the actual voltage value of the circuit of described electric equipment be less than rated voltage 85% time, described under-voltage decompression is lost button device 5 and is failure to actuate, and under-voltage decompression is lost button device 5 tops and held out against on top board 7.
Preferably, described protective device also comprises bent plate 6, and described bent plate 6 comprises bent plate body 8 and kink 9, between kink 9 and dividing plate 1, by bolt 4, is connected, and bent plate body 8 is horizontal arrangement, and under-voltage decompression is lost button device 5 and is fixedly mounted on bent plate body 8.
Vacuum circuit-breaker described in the utility model is that a kind of terminal voltage at electric equipment is while being down to a certain prescribed limit with under-voltage no-voltage protection device; a kind of protective device that makes circuit breaker have time delay or disconnect without time delay; when supply voltage declines (even slow decreasing) in 70% to 35% scope of rated operational voltage; belong to under-voltage; when supply voltage drops to 35% when following of rated operational voltage, belong to decompression.When supply voltage is equal to or greater than the rated operational voltage of 85% under-voltage no-voltage release, under hot condition, device of the present utility model can guarantee that circuit breaker is reliably closed.When in under-voltage decompression state, the action of under-voltage no-voltage release, cuts off the electricity supply vacuum circuit-breaker separating brake, the damage that makes this load appliance below circuit breaker or electric equipment avoid under-voltage decompression.During use, under-voltage no-voltage release is contained in breaker mechanism, and after under-voltage no-voltage release energising, circuit breaker could close a floodgate, otherwise circuit breaker closes not brake application.
The sectional structure schematic diagram of Fig. 2 A-A face when under-voltage decompression state (vacuum circuit-breaker energising or voltage are less than 70% rated voltage) that is vacuum circuit-breaker described in Fig. 1 with under-voltage no-voltage protection device; When vacuum circuit-breaker power-off decompression or when under-voltage, under-voltage decompression is lost button device 5 and is failure to actuate to withstand on top board 7 and makes separating brake semiaxis 3 always in open position by connecting axle 2, and circuit breaker does not close lock.
The sectional structure schematic diagram of Fig. 3 A-A face when normal operating conditions (vacuum circuit-breaker energising or voltage are more than or equal to 85% rated voltage) that is vacuum circuit-breaker described in Fig. 1 with under-voltage no-voltage protection device; Mechanism's state diagram when vacuum circuit-breaker obtains electric or voltage and is more than or equal to 85% rated voltage: when vacuum breaker electrifying or voltage are more than or equal to 85% rated voltage, under-voltage decompression is lost button device 5 and is obtained electric adhesive, make separating brake semiaxis 3 recover position, vacuum circuit-breaker can normally close a floodgate.
The under-voltage no-voltage protection device of vacuum circuit-breaker of the present utility model; simple in structure; protective device is easy for installation; operation is convenient; while there is under-voltage decompression phenomenon; when the actual voltage value of the circuit of electric equipment be greater than rated voltage 85% time; under-voltage decompression is lost button device 5 and is obtained electric adhesive; under-voltage decompression is lost button device 5 tops and is unclamped top board; when the actual voltage value of the circuit of electric equipment be less than rated voltage 85% time; under-voltage decompression is lost button device 5 and is failure to actuate, and under-voltage decompression is lost button device 5 tops and held out against on top board 7.By such structure, arrange, protective device of the present utility model can be guaranteed vacuum circuit-breaker automatic brake separating, cuts off the electricity supply, and under under-voltage decompression, separating brake reliability is high, few maintenance, thus guarantee electric control appliance safety and production safety.
By reference to the accompanying drawings the utility model has been carried out to exemplary description above; obviously the concrete realization of the utility model is not subject to the restrictions described above; as long as the various improvement that adopted method design of the present utility model and technical scheme to carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasions, all in protection range of the present utility model.

Claims (4)

1. the under-voltage no-voltage protection device of vacuum circuit-breaker, described protective device comprises multiple tracks dividing plate (1), horizontally disposed connecting axle (2) is through multiple tracks dividing plate (1), separating brake semiaxis (3) is arranged on connecting axle (2), it is characterized in that: described protective device also comprises the under-voltage decompression mistake button device (5) that can obtain electric adhesive, under-voltage decompression is lost button device (5) bottom dividing plate (1) together with wherein and is connected, described under-voltage decompression is lost button device (5) top and is resisted against on the top board (7) being connected with connecting axle (2), the under-voltage decompression of described protective device is lost button device (5) and is connected with electric equipment circuit.
2. the under-voltage no-voltage protection device of vacuum circuit-breaker according to claim 1; it is characterized in that: when the actual voltage value of the circuit of described electric equipment be greater than rated voltage 85% time; described under-voltage decompression is lost button device (5) and is obtained electric adhesive; under-voltage decompression is lost the structure that button device (5) top is set to unclamp top board; when the actual voltage value of the circuit of described electric equipment be less than rated voltage 85% time; described under-voltage decompression is lost button device (5) and is failure to actuate, and under-voltage decompression is lost button device (5) top and held out against on top board (7).
3. the under-voltage no-voltage protection device of vacuum circuit-breaker according to claim 2; it is characterized in that: between described multiple tracks dividing plate (1), be set to by the structure of gap layout; multiple tracks dividing plate (1) is all set to vertically arranged structure; between described connecting axle (2) and multiple tracks dividing plate (1), be flexibly connected; top board (7) is flexibly connected with connecting axle (2), and separating brake semiaxis (3) is fixedly connected with connecting axle (2).
4. according to the under-voltage no-voltage protection device of the vacuum circuit-breaker described in claim 2 or 3; it is characterized in that: described protective device also comprises bent plate (6); described bent plate (6) comprises bent plate body (8) and kink (9); between kink (9) and dividing plate (1), by bolt (4), be connected; bent plate body (8) is horizontal arrangement, and under-voltage decompression is lost button device (5) and is fixedly mounted on bent plate body (8).
CN201320329333.XU 2013-06-07 2013-06-07 Under-voltage and no-voltage protection device for vacuum circuit breaker Expired - Fee Related CN203553028U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320329333.XU CN203553028U (en) 2013-06-07 2013-06-07 Under-voltage and no-voltage protection device for vacuum circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320329333.XU CN203553028U (en) 2013-06-07 2013-06-07 Under-voltage and no-voltage protection device for vacuum circuit breaker

Publications (1)

Publication Number Publication Date
CN203553028U true CN203553028U (en) 2014-04-16

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ID=50471109

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320329333.XU Expired - Fee Related CN203553028U (en) 2013-06-07 2013-06-07 Under-voltage and no-voltage protection device for vacuum circuit breaker

Country Status (1)

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CN (1) CN203553028U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106571266A (en) * 2016-11-08 2017-04-19 北京杰远电气有限公司 Pole-mounted vacuum circuit breaker and control method of voltage tripper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106571266A (en) * 2016-11-08 2017-04-19 北京杰远电气有限公司 Pole-mounted vacuum circuit breaker and control method of voltage tripper
CN106571266B (en) * 2016-11-08 2020-08-04 北京杰远电气有限公司 Control method of vacuum circuit breaker on column and voltage type release

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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: 20140416

Termination date: 20160607