CN202564092U - Interlocking device between breaker and disconnector - Google Patents
Interlocking device between breaker and disconnector Download PDFInfo
- Publication number
- CN202564092U CN202564092U CN2011205012647U CN201120501264U CN202564092U CN 202564092 U CN202564092 U CN 202564092U CN 2011205012647 U CN2011205012647 U CN 2011205012647U CN 201120501264 U CN201120501264 U CN 201120501264U CN 202564092 U CN202564092 U CN 202564092U
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- CN
- China
- Prior art keywords
- lockweight
- circuit breaker
- trundle
- interlock
- isolating switch
- 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
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Abstract
The utility model provides an interlocking device between a breaker and a disconnector. The interlocking device comprises a drive pin (2), a connecting rod (6), a locking pin (7) and a connecting rod support (5). The drive pin (2), the connecting rod (6) and the locking pin (7) are connected to form a linkage. The connecting rod (6) can rotate around the connecting rod support (5) so as to push the locking pin (7) to lock the disconnector when the breaker is closed. The interlocking device also comprises a return spring (8) which is used for driving the locking pin (7) to reset when the breaker is in an opening position.
Description
Technical field
The utility model belongs to the power product technical field, is specifically related to a kind of interlock that is applied on the switchgear, to allow and to forbid the breaking-closing operating to isolating switch, circuit breaker.
Background technology
On the conventional high voltage switchgear, need carry out better controlled in proper order, cause danger and infringement to avoid operating improperly to the divide-shut brake of circuit breaker and isolating switch.When circuit breaker is in closing position, do not allow isolating switch is carried out the operation of separating brake, combined floodgate.Simultaneously, the state of isolating switch does not influence the free operant of circuit breaker.
Outdoor vacuum circuit breaker PVB is a product on sale at present, to the present a isolating switch that is integrated on the PVB circuit breaker, does not still have the interlock between circuit breaker and the isolating switch.
Therefore, need an interlock, with the divide-shut brake that guarantees circuit breaker and isolating switch in proper order, cause danger and infringement to avoid operating improperly.
The utility model content
The purpose of the utility model is to provide a kind of reliable mechanical interlock; Can reliably control circuit breaker and isolating switch breaking-closing operating; And guarantee under lock-out state, the isolating switch of quiescing can't be operated, when needs are operated isolating switch; Change the state of interlock, can realize its operation.
The circuit breaker of the utility model and the interlock of isolating switch comprise trundle, connecting rod, lockweight and link supports; Trundle, connecting rod and lockweight are connected to become a linkage, and connecting rod can rotate around link supports.
The interlock of the utility model also comprises compression reseting spring, is used for driving lockweight and resetting when circuit breaker during in the separating brake position.
According to the most preferred embodiment of the utility model, when circuit breaker at closing position, isolating switch is also when closing position, the circuit breaker main shaft promotes trundle, and its drive link is rotated around supporting, thereby lockweight is stretched out and limit the control lever rotation.
When circuit breaker at closing position, isolating switch is when the separating brake position, the circuit breaker main shaft promotes trundle, and its drive link is rotated around supporting, thereby lockweight is stretched out and limit the control lever rotation.
When circuit breaker was in the separating brake position, compression reseting spring made the lockweight return, thereby removed spacing to control lever, and the isolating switch main shaft is free to rotate.
According to the embodiment of the utility model, interlock also comprises the trundle sleeve pipe, and trundle is moved along the direction of trundle sleeve pipe in the trundle sleeve pipe.
According to the embodiment of the utility model, interlock also comprises the lockweight sleeve pipe, and lockweight is moved along the direction of lockweight sleeve pipe in the lockweight sleeve pipe.
According to the embodiment of the utility model, interlock also comprises spring stop piece, is used for when breaker closing, and the restriction back-moving spring also makes its compression.
Description of drawings
Figure 1A-1B is the structural representation of the interlock of the utility model, and wherein Figure 1A is a perspective view, and Figure 1B is a front view;
Fig. 2 A-2B is in closing position when circuit breaker, and when isolating switch was in closing position, isolating switch did not allow to carry out the sub-switching operation sketch map, and wherein, Fig. 2 A is a stereogram, and Fig. 2 B is a front view;
Fig. 3 is in closing position when circuit breaker, and when isolating switch was in the separating brake position, isolating switch did not allow to carry out the three-dimensional diagrammatic sketch of closing operation.
Embodiment
Below in conjunction with the accompanying drawing of the utility model, the most preferred embodiment of the utility model is described in more detail.
Figure 1A-1B is the structural representation of the interlock of the utility model, and wherein Figure 1A is a perspective view, and Figure 1B is a front view.As shown in the figure, each component identification is respectively: 1-circuit breaker main shaft, 2-trundle, 3-trundle sleeve pipe; 4-shell (panel near the lockweight side only is shown), 5-link supports, 6-connecting rod, 7-lockweight; The 8-back-moving spring, 9-control lever, 10-isolating switch main shaft; 11-lockweight sleeve pipe, 12-spring stop piece, 13-locking nut.
Shown in Figure 1A and Figure 1B, the interlock of the utility model comprises trundle 2 and connecting rod 6 and lockweight 7, and they form a linkage; Can rotate around link supports 5; When breaker closing, circuit breaker main shaft 1 promotes linkage and rotates, and makes lockweight remain on locked position of coupler.
The interlock of the utility model also comprises compression reseting spring 8, and when breaker open operation, the energy drives lockweight of back-moving spring resets, and drivening rod mechanism resets.
Locking device is independently parts; Its trundle 2 and lockweight 7 and circuit breaker and isolating switch all do not have the relation that is fixedly connected, and locking device shell 4 (panel near the lockweight side only is shown among the figure) is fixed together through clamping screw 13 and Shell of circuit breaker.Embody the advantage of modularized design, detachable.
Below in conjunction with accompanying drawing, specify the operation principle of the interlock of the utility model at each state.
When circuit breaker was in closing position, isolating switch did not allow to close/minute operation.
Shown in Fig. 2 A and Fig. 2 B, when circuit breaker is in closing position, when isolating switch was in closing position, isolating switch did not allow to carry out sub-switching operation.
In the time of breaker closing; Circuit breaker main shaft 1 promotes trundle 2; Trundle 2 moves along trundle sleeve pipe 3, and drive link 6 supports 5 around it and rotates, and makes lockweight 7 stretch out and rest on control lever 9 belows along lockweight sleeve pipe 11; Thereby control lever 9 is played spacing effect, it can't be moved downwards; Because control lever 9 is fixed together with isolating switch main shaft 10, therefore, control lever 9 has limited the rotation of isolating switch main shaft 10, realizes blocking function, and can't carry out breaking-closing operating this moment to isolating switch.
At this moment, back-moving spring 8 receives the extruding of shell 4 and spring stop piece 12, makes back-moving spring be compressed, and when this is breaker open operation, removes the interlocking restriction return energy is provided.
As shown in Figure 3, when circuit breaker is in closing position, when isolating switch was in the separating brake position, isolating switch did not allow closing operation.
When isolating switch was in the separating brake position, control lever 9 was in another position, at this moment; If breaker closing, under the driving of circuit breaker main shaft 1, trundle 2 moves along trundle sleeve pipe 3; Drive link 6 supports 5 around it and rotates, and makes lockweight 7 stretch out and rest on the top of control lever 9 along lockweight sleeve pipe 11, thereby limits control lever motion toward the top; Because control lever 9 is fixed together with isolating switch main shaft 10, therefore, control lever 9 has limited the rotation of isolating switch main shaft 10; Realize blocking function, can't carry out breaking-closing operating this moment to isolating switch, and back-moving spring 8 is compressed.
The profile of control lever 9 and the design of position are wanted accurately, guarantee no matter isolating switch is in combined floodgate or gate-dividing state, as long as breaker closing, lockweight 7 can both put in place, realizes blocking function.
When circuit breaker was in the separating brake position, isolating switch can free operant.
When the breaker closing position, under the driving of circuit breaker main shaft 1, connecting rod 6 drives lockweight 7 and stretches out, simultaneously compression reseting spring 8.When breaker open operation, circuit breaker main shaft return, compressed back-moving spring 8 drives lockweight 7 returns before this moment, and drivening rod 6 rotations, trundle 2 is resetted, for next closing locking is prepared.
Shown in Figure 1A and 1B, when circuit breaker was in the separating brake position, the back-moving spring 8 that is in compressive state promoted spring stop piece 12 motions, makes lockweight 7 returns.Have certain clearance between lockweight 7 and the control lever 9 this moment, and this gap makes 7 pairs of control levers 9 of lockweight lose position-limiting action, and isolating switch main shaft 10 can freely rotate, and isolating switch can close a floodgate or sub-switching operation.
As stated, the energy source of locking device is circuit breaker main shaft 1, and isolating switch does not have the energy input to it.The action of locking device is under the driving of circuit breaker main shaft, to accomplish.Be not fixedly connected between locking device and the isolating switch.No matter isolating switch is in is closed a floodgate or the separating brake position, and the branch that closes that can not influence circuit breaker is operated.
The energy of back-moving spring must be appropriate, and when breaker open operation, the back-moving spring energy is wanted to guarantee to make lockweight and the reliable return of linkage, for next closing locking is prepared on the one hand; On the other hand, the energy of back-moving spring can not be excessive, otherwise during breaker closing, the excessive resistance to compression pression of back-moving spring can hinder the motion of circuit breaker main shaft 1, causes the closing speed of circuit breaker main shaft low excessively, influences the mechanical property of circuit breaker.
The utility model provides a kind of reliable mechanical interlock; Can reliably control circuit breaker and isolating switch breaking-closing operating; And guarantee under lock-out state, the isolating switch of quiescing can't be operated, when needs are operated isolating switch; Change the state of interlock, can realize its operation.Be that its concrete function is following:
1) when circuit breaker is in closing position, isolating switch does not allow to close/minute operation;
2) when circuit breaker is in the separating brake position, isolating switch is essential can free operant;
What 3) state of isolating switch did not influence circuit breaker closes branch operation.
The locking device of the utility model has been realized modularized design, is independently parts, detachable.
Although disclose the preferred embodiment and the accompanying drawing of the utility model for the purpose of illustration, the personnel of skilled in the spirit and scope that do not break away from the utility model and appended claim, can do various replacements, variation and retouching.Therefore, the utility model should not be limited to preferred embodiment and the disclosed content of accompanying drawing, and the protection range of the utility model is as the criterion with the scope that appending claims was defined.
Claims (8)
1. the interlock of circuit breaker and isolating switch comprises trundle (2) and connecting rod (6), it is characterized in that: also comprise lockweight (7) and link supports (5); Trundle (2), connecting rod (6) and lockweight (7) are connected to become a linkage, and connecting rod (6) can rotate around link supports (5).
2. interlock according to claim 1 is characterized in that: comprise back-moving spring (8), be used for driving lockweight (7) and resetting when circuit breaker during in the separating brake position.
3. interlock according to claim 1 and 2; It is characterized in that: when circuit breaker at closing position; Isolating switch is also when closing position; Circuit breaker main shaft (1) promotes trundle (2), and its drive link (6) is rotated around supporting (5), thereby lockweight (7) is stretched out and limit control lever (9) rotation.
4. interlock according to claim 1 and 2; It is characterized in that: when circuit breaker at closing position; Isolating switch is when the separating brake position; Circuit breaker main shaft (1) promotes trundle (2), and its drive link (6) is rotated around supporting (5), thereby lockweight (7) is stretched out and limit control lever (9) rotation.
5. interlock according to claim 1 and 2 is characterized in that: when circuit breaker was in the separating brake position, back-moving spring (8) made lockweight (7) return, thereby removed spacing to control lever (9), and isolating switch main shaft (10) is free to rotate.
6. interlock according to claim 1 and 2 is characterized in that: interlock also comprises trundle sleeve pipe (3), makes trundle (2) direction motion along trundle sleeve pipe (3) in trundle sleeve pipe (3).
7. interlock according to claim 1 and 2 is characterized in that: interlock also comprises lockweight sleeve pipe (11), makes lockweight (7) direction motion along lockweight sleeve pipe (11) in lockweight sleeve pipe (11).
8. interlock according to claim 1 and 2 is characterized in that: interlock also comprises spring stop piece (12), is used for when breaker closing, and restriction back-moving spring (8) also makes its compression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205012647U CN202564092U (en) | 2011-11-30 | 2011-11-30 | Interlocking device between breaker and disconnector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205012647U CN202564092U (en) | 2011-11-30 | 2011-11-30 | Interlocking device between breaker and disconnector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202564092U true CN202564092U (en) | 2012-11-28 |
Family
ID=47213720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205012647U Expired - Fee Related CN202564092U (en) | 2011-11-30 | 2011-11-30 | Interlocking device between breaker and disconnector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202564092U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108630474A (en) * | 2018-07-02 | 2018-10-09 | 河南华盛隆源电气有限公司 | The interlocking mechanism of breaker and disconnecting switch |
| CN108735535A (en) * | 2017-04-14 | 2018-11-02 | 陈锡瑜 | Interlock between electric switch |
-
2011
- 2011-11-30 CN CN2011205012647U patent/CN202564092U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735535A (en) * | 2017-04-14 | 2018-11-02 | 陈锡瑜 | Interlock between electric switch |
| CN108630474A (en) * | 2018-07-02 | 2018-10-09 | 河南华盛隆源电气有限公司 | The interlocking mechanism of breaker and disconnecting switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180529 Address after: Baden, Switzerland Patentee after: ABB TECHNOLOGY LTD. Address before: Zurich Patentee before: ABB T & D Technology Ltd. |
|
| 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: 20121128 Termination date: 20191130 |