CN202502954U - Circuit breaker device provided with disconnecting switch - Google Patents
Circuit breaker device provided with disconnecting switch Download PDFInfo
- Publication number
- CN202502954U CN202502954U CN201220122153XU CN201220122153U CN202502954U CN 202502954 U CN202502954 U CN 202502954U CN 201220122153X U CN201220122153X U CN 201220122153XU CN 201220122153 U CN201220122153 U CN 201220122153U CN 202502954 U CN202502954 U CN 202502954U
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- China
- Prior art keywords
- circuit breaker
- incoming cables
- leading
- isolating switch
- out terminal
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Abstract
Disclosed is a circuit breaker device provided with a disconnecting switch, comprising 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. Incoming and outgoing terminals of the disconnecting switch are on the same level. The circuit breaker device provided with the disconnecting switch in the utility model has the advantages of high reliability and convenient operation.
Description
Technical field
The utility model relates to the power transmission and distribution switchgear, particularly a kind of release unit with isolating switch.
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 operation principle of disconnecting link isolating switch 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, be suitable for protective device as circuit breaker.High-pressure vacuum breaker on a kind of outdoor post of configuration isolation switch is disclosed like Chinese patent document CN201570430U; The lower surface of two footing of high-pressure vacuum breaker links to each other with bolt on one end both sides upper surface of base and the outdoor post; The installing hole that lock passes high-pressure vacuum breaker one side footing middle part on the outdoor post links to each other with nut with base; Both sides, the middle part inwall of base links to each other with bolt with two bearing spiders respectively, and three supporting insulator bottom surfaces of the other end inclined-plane of base and three-phase link to each other with bolt.
Yet the above-mentioned vacuum circuit-breaker that is used for exists following not enough: 1. isolate plug-in strip and link to each other with bearing pin with touch base, and pass through spring compression; Because the thrust of spring changes with the elastic deformation of spring at any time; The size of the uncontrollable thrust of operating personnel, and spring uses back deformation to be difficult to recover fully for a long time, and reliability reduces; Even the generation plastic deformation, influence the reliability of isolating switch; 2. the two ends that isolate plug-in strip contact with touch base with fixed contact respectively; Fixed contact and touch base are on the different horizontal line; Isolate plug-in strip and when closing a floodgate, be in heeling condition, need operating personnel to apply the action of opening a sluice gate that bigger external force just can realize isolating plug-in strip, operation inconvenience like this.
The utility model content
The utility model technical problem to be solved is the not high and operation inconvenience of vacuum circuit-breaker reliability in the prior art, and provides a kind of reliability higher and easy to operate release unit.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is following:
A kind of release unit with isolating switch 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 and leading-out terminal are in same horizontal line.
In the above-mentioned release unit, 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, 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 end of incoming cables terminal block is provided with the holddown groove that is connected said switch with the position that said switch is electrically connected.
In the above-mentioned release unit, said isolating switch also comprises:
Support is fixed on the said casing;
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 isolating switch also comprises:
Post insulator, its two ends are fixed with the end of incoming cables of said support and said isolating switch respectively.
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.
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 comprises casing, circuit breaker and isolating switch, and wherein the end of incoming cables of isolating switch and leading-out terminal are in same horizontal line.Such design, the contact friction force when helping reducing the isolating switch combined floodgate, reducing operating personnel needs externally applied forces when closing a floodgate; When being closed a floodgate, isolating switch is more prone to; Promoted the operability of release unit, and cancelled spring members, reliability is higher.
2. 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.Such connected mode, 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.
3. 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.Current transformer can be converting the less secondary current of numerical value through the bigger primary current of the numerical value of circuit breaker into through certain proportion; Thereby under the certain situation of output current; Reduction is through the current strength of release unit; Release unit is protected, promoted the reliability of release unit.
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.
Reference numeral is expressed as among the figure: 1-casing, 2-leading-out terminal terminal block, 3-current transformer, 4-circuit breaker leading-out terminal; The 5-circuit breaker, 6-circuit breaker end of incoming cables, 7-switch, 8-support; The 9-holddown groove, 10-end of incoming cables terminal block, 11-post insulator; The 12-insulated tension pole, 13-operating grip, 14-isolating switch.
Embodiment
As shown in Figure 1, be a kind of preferred embodiment of the utility model with release unit of isolating switch.Said release unit comprises: casing 1, circuit breaker 5, isolating switch 14 summation current transformers 3.
Said casing 1 is fixed with the electric pole support, and said casing 1 is provided with end of incoming cables terminal block 10 and leading-out terminal terminal block 2.In the present embodiment, form four bolts hole on the said casing 1, said casing 1 is fixed through bolt and electric pole support.
Said circuit breaker 5 is arranged on the said casing 1, and said circuit breaker 5 has circuit breaker end of incoming cables 6 and circuit breaker leading-out terminal 4; In the present embodiment, said circuit breaker 5 is a kind of outdoor high-voltage vacuum breaker.
In the present embodiment, the end of incoming cables of said isolating switch 14 is electrically connected with said end of incoming cables terminal block 10, and the leading-out terminal of said isolating switch 14 is electrically connected with said circuit breaker end of incoming cables 6, and said circuit breaker leading-out terminal 4 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 4 and the said leading-out terminal terminal block 2.
Said isolating switch 14 is electrically connected with said circuit breaker 5, and the end of incoming cables of said isolating switch 14 and leading-out terminal are in same horizontal line.Said isolating switch 14 comprises: switch 7, support 8, operating grip 13, insulated tension pole 12 and post insulator 11.
One end of said switch 7 is electrically connected with said circuit breaker end of incoming cables 6, but the other end is electrically connected with terminal block 10 disjunctions of said end of incoming cables.In the present embodiment, said end of incoming cables terminal block 10 is provided with the holddown groove 9 that is used to be connected said switch 7 with the position that said switch 7 is electrically connected.
Said support 8 is fixed on the said casing 1.
Said operating grip 13 is rotatably mounted on the said support 8.
The two ends of said insulated tension pole 12 are hinged on respectively on said support 8 and the said switch 7.
The two ends of said post insulator 11 are fixed with the end of incoming cables of said support 8 and said isolating switch 14 respectively.
In the present embodiment, be provided with five anti-interlocks between said circuit breaker 5 and the said isolating switch 14, this device can guarantee that when said circuit breaker 5 is in closing position operating personnel cannot operate said isolating switch 14.
In other embodiments, can six or eight bolts hole of moulding on the said casing 1, can realize the purpose of the utility model equally.
In other embodiments, said circuit breaker 5 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; Said release unit can comprise two said current transformers 3; Said current transformer 3 is separately positioned between said circuit breaker leading-out terminal 4 and the said leading-out terminal terminal block 2; And between the end of incoming cables of said isolating switch 14 and the said end of incoming cables terminal block 10,, improved protection effect to said circuit breaker 5 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 with isolating switch comprises:
Casing (1) is fixed with the electric pole support, and said casing (1) is provided with end of incoming cables terminal block (10) and leading-out terminal terminal block (2);
Circuit breaker (5) is arranged on the said casing (1), and said circuit breaker (5) has circuit breaker end of incoming cables (6) and circuit breaker leading-out terminal (4);
Isolating switch (14) is electrically connected with said circuit breaker (5);
It is characterized in that: the end of incoming cables of said isolating switch (14) and leading-out terminal are in same horizontal line.
2. release unit according to claim 1; It is characterized in that: the end of incoming cables of said isolating switch (14) is electrically connected with said end of incoming cables terminal block (10); The leading-out terminal of said isolating switch (14) is electrically connected with said circuit breaker end of incoming cables (6), and said circuit breaker leading-out terminal (4) is electrically connected with said leading-out terminal terminal block (2).
3. release unit according to claim 2 is characterized in that: said isolating switch (14) comprises,
Switch (7), the one of which end is electrically connected with said circuit breaker end of incoming cables (6), the other end with said end of incoming cables terminal block (10) but disjunction be electrically connected.
4. release unit according to claim 3 is characterized in that: said end of incoming cables terminal block (10) is provided with the holddown groove (9) that is connected said switch (7) with the position that said switch (7) is electrically connected.
5. release unit according to claim 4 is characterized in that: said isolating switch (14) also comprises,
Support (8) is fixed on the said casing (1);
Operating grip (13) is rotatably mounted on the said support (8);
Insulated tension pole (12), its two ends are hinged on respectively on said support (8) and the said switch (7).
6. release unit according to claim 5 is characterized in that: said isolating switch (14) also comprises,
Post insulator (11), its two ends are fixed with the end of incoming cables of said support (8) and said isolating switch (14) respectively.
7. according to the arbitrary described release unit of claim 2-6, it is characterized in that: be connected with current transformer (3) between said circuit breaker leading-out terminal (4) and the said leading-out terminal terminal block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220122153XU CN202502954U (en) | 2012-03-28 | 2012-03-28 | Circuit breaker device provided with disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220122153XU CN202502954U (en) | 2012-03-28 | 2012-03-28 | Circuit breaker device provided with disconnecting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202502954U true CN202502954U (en) | 2012-10-24 |
Family
ID=47039562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220122153XU Expired - Fee Related CN202502954U (en) | 2012-03-28 | 2012-03-28 | Circuit breaker device provided with disconnecting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202502954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957744A (en) * | 2016-06-06 | 2016-09-21 | 柳州市海格电气有限公司 | Manufacturing method of 110kV disconnecting switch |
-
2012
- 2012-03-28 CN CN201220122153XU patent/CN202502954U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957744A (en) * | 2016-06-06 | 2016-09-21 | 柳州市海格电气有限公司 | Manufacturing method of 110kV disconnecting switch |
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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: 20121024 Termination date: 20170328 |