CN201868276U - Misoperation-preventing interlocking device of low-voltage cabinet - Google Patents
Misoperation-preventing interlocking device of low-voltage cabinet Download PDFInfo
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- CN201868276U CN201868276U CN2010206464153U CN201020646415U CN201868276U CN 201868276 U CN201868276 U CN 201868276U CN 2010206464153 U CN2010206464153 U CN 2010206464153U CN 201020646415 U CN201020646415 U CN 201020646415U CN 201868276 U CN201868276 U CN 201868276U
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- circuit breaker
- low
- switch
- voltage
- micro switch
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Abstract
本实用新型涉及一种防误操作装置，特别涉及一种低压柜防误操作连锁装置。此装置是在低压开关柜的屏后安装一微动开关,对于带有分闸线圈FQ的断路器DW，可以将微动开关的常开触点与控制短路器的分闸按钮TA并联，对于带有失压脱扣线圈QQ的断路器将微动开关的常闭断触点与断路器失压脱扣线圈QQ串联接到供电电源上。这样，只要刀开关动作，在刀开关动、静触头接触或断开的瞬间，微动开关都处于动作状态，确保了DW断路器处于分闸位置，从根本上消除了带负荷拉、合刀开关的可能，杜绝了事故的发生。
The utility model relates to an anti-misoperation device, in particular to a low-voltage cabinet anti-misoperation interlocking device. This device is to install a micro switch behind the screen of the low-voltage switchgear. For the circuit breaker DW with opening coil FQ, the normally open contact of the micro switch can be connected in parallel with the opening button TA of the control circuit breaker. For For a circuit breaker with a voltage-loss tripping coil QQ, the normally closed open contact of the micro switch and the circuit breaker voltage-loss tripping coil QQ are connected in series to the power supply. In this way, as long as the knife switch operates, the micro switch is in the action state at the moment when the moving and static contacts of the knife switch are contacted or disconnected, which ensures that the DW circuit breaker is in the opening position, and fundamentally eliminates the problem of pulling and closing with load. The possibility of knife switch prevents accidents.
Description
Technical field
The utility model relates to a kind of anti-misoperation apparatus, particularly a kind of low-tension switch cabinet anti-misoperation interlock.
Background technology
At present, the major loop of low-voltage distribution cabinet great majority adopt HD series knife switch and DW Series Circuit Breakers to be used, and for the DW Series Circuit Breakers that has switching winding, its switching winding is connected with the control opening button and inserted in the power circuit of circuit breaker; For the DW Series Circuit Breakers that has the no-voltage trip coil, its no-voltage trip coil directly is connected in the power circuit of circuit breaker.And owing to do not have interlock between knife switch and the circuit breaker, the serious accident that on-load drew, closed knife switch very easily takes place, cause and seriously influence for people's production, life.
The utility model content
The purpose of this utility model provides the high low-tension switch cabinet anti-misoperation interlock of a kind of security performance.
A kind of low-tension switch cabinet anti-misoperation interlock is equipped with sensitive switch behind the screen of low-tension switch cabinet, the moving contact of sensitive switch is received in the circuit of circuit breaker.
The opening button of control circuit breaker is connected with the switching winding of circuit breaker and is received on the power supply, and the normally opened contact of sensitive switch is connected in parallel on the two ends of the opening button of control circuit breaker.
The normally-closed contact of sensitive switch is connected with circuit breaker no-voltage trip coil and is received on the power supply.
Can reach following technique effect according to above technical scheme:
Because the contact of sensitive switch has been inserted in the circuit of circuit breaker, as long as knife switch action, in the moment of dynamic and static contact contact of knife switch or disconnection, sensitive switch all is in operate condition, guaranteed that circuit breaker is in the separating brake position, fundamentally eliminate the possibility that on-load drew, closed knife switch, stopped the generation of accident.
Description of drawings
Fig. 1 is the circuit theory diagrams of a kind of embodiment of the utility model;
Fig. 2 is the circuit theory diagrams of the another kind of embodiment of the utility model.
Embodiment
Low-tension switch cabinet anti-misoperation interlock comprises HD series knife switch, DW Series Circuit Breakers, sensitive switch, after sensitive switch is contained in the screen of low-tension switch cabinet, the operating handle that makes knife switch is in 45 °～150 ° scopes, and assurance sensitive switch action message under the effect of knife switch connecting rod.To having the DW Series Circuit Breakers of switching winding FQ, as shown in Figure 1, the normally opened contact XK1 of sensitive switch is parallel to the two ends of the opening button TA of control circuit breaker, during the circuit operate as normal, if want opening button TA can be directly pressed in the circuit disconnection, make the switching winding FQ energising of circuit breaker, breaker open operation cuts off circuit.When the circuit operate as normal touched knife switch artificially, knife switch drove the sensitive switch action, made the normally opened contact XK1 closure of sensitive switch, made the switching winding FQ energising of circuit breaker, made breaker open operation, and the accident of avoiding on-load drawing lock takes place takes place.
To having the DW Series Circuit Breakers of no-voltage trip coil QQ, as shown in Figure 2, the normally closed break contact XK2 of sensitive switch connected with the no-voltage trip coil QQ of DW Series Circuit Breakers receive on the power circuit of circuit breaker, circuit breaker can not move during operate as normal.When knife switch is drawn back or is closed, drive the sensitive switch action, make the normally opened contact XK2 closure of sensitive switch, make no-voltage trip coil QQ dead electricity, make circuit breaker decompression separating brake, make the circuit outage, the generation of having stopped accident.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206464153U CN201868276U (en) | 2010-12-08 | 2010-12-08 | Misoperation-preventing interlocking device of low-voltage cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206464153U CN201868276U (en) | 2010-12-08 | 2010-12-08 | Misoperation-preventing interlocking device of low-voltage cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201868276U true CN201868276U (en) | 2011-06-15 |
Family
ID=44139425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206464153U Expired - Fee Related CN201868276U (en) | 2010-12-08 | 2010-12-08 | Misoperation-preventing interlocking device of low-voltage cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201868276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947253A (en) * | 2017-09-13 | 2018-04-20 | 浙江时通电气制造有限公司 | A kind of battery pack interlock in parallel and serial |
-
2010
- 2010-12-08 CN CN2010206464153U patent/CN201868276U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947253A (en) * | 2017-09-13 | 2018-04-20 | 浙江时通电气制造有限公司 | A kind of battery pack interlock in parallel and serial |
| CN107947253B (en) * | 2017-09-13 | 2020-04-14 | 浙江时通电气制造有限公司 | A battery pack parallel and series interlocking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131203 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Xuchang Power Supply Company, State Grid Hunan Electric Power Company Address before: No. 288 Xuchang City, Henan province 461000 City Road Patentee before: Xuchang Power Supply Company of Henan Electric Power Company |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20181208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |