CN201994643U - Microcomputer protection recloser and circuit breaker matching mechanism - Google Patents
Microcomputer protection recloser and circuit breaker matching mechanism Download PDFInfo
- Publication number
- CN201994643U CN201994643U CN 201120106197 CN201120106197U CN201994643U CN 201994643 U CN201994643 U CN 201994643U CN 201120106197 CN201120106197 CN 201120106197 CN 201120106197 U CN201120106197 U CN 201120106197U CN 201994643 U CN201994643 U CN 201994643U
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- circuit breaker
- circuit
- breaker
- closing
- microcomputer
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Abstract
The utility model relates to a microcomputer protection recloser and circuit breaker matching mechanism. A closing circuit of the matching mechanism comprises a power supply positive contactor KM, an air switch SM40, a local/remote change-over switch QK, a closing/opening change-over switch KK, a microcomputer protector 1n, a switch cabinet interlocked joint 2QF, a circuit breaker closing coil MC, a second air switch SM40 and a power supply negative contactor KM. The microcomputer protector 1n is a microcomputer protection PAS2911D digital circuit protection monitoring and controlling device produced by the Nanjing Anen Electric Control Equipment Co., Ltd., the circuit beaker is a VD4 vacuum circuit breaker produced by the ABB (Asea Brown Boveri) company, the VD4 vacuum circuit breaker is added with a circuit breaker normally closed auxiliary joint, and a fourteenth joint and a seventh joint of the VD4 vacuum circuit breaker are in short circuit through the circuit breaker normally closed auxiliary joint. Accordingly, the technical problem that closing coils in existing mechanisms are closed all the time and cannot be cut off after closing commands are sent out is solved, and the coils are not easy to be burnt off after the closing coils of the circuit breaker are powered on for a long time.
Description
Technical field
The utility model relates to transformer outlet cabinet microcomputer protecting device, particularly a kind of Microcomputer Protection reclosing and circuit breaker matching mechanism.
Background technology
Along with The development in society and economy, power reguirements is also more and more higher, Microcomputer Protection popularizing progressively, and Microcomputer Protection can go wrong with cooperating also of circuit breaker.
Be a kind of existing Microcomputer Protection reclosing and circuit breaker matching mechanism as shown in Figure 1.Wherein, microcomputer protecting device 1n is the how digital route protection measure and control device of Microcomputer Protection PAS2911D of electrical control equipment Co., Ltd of Nanjing, and circuit breaker then is adopted as the VD4 vacuum circuit-breaker of ABB AB.
In debug process; following problem appears in the debugging digital route protection measure and control device of Microcomputer Protection PAS2911D (being the incoming line cabinet microcomputer protecting device): after sending the order of closing a floodgate; breaker closing; and the adhesive always of breaker closing coil; can't disconnect closing coil, if coil is burnt in the long-time energising of breaker closing coil easily.After sending the separating brake order, separating brake is normal.The operation principle of closing circuit in this structure: from the positive KM of power supply through air switch SM40, on the spot/distant place change over switch QK, close/separating brake change over switch KK, microcomputer protecting device 1n, switch cubicle interlocking contact 2QF, breaker closing coil MC, air switch SM40; to power-KM, finish the breaker closing process then.
By analysis, the adhesive always of breaker closing coil can't disconnect closing coil and show, has electric current, voltage to export from the digital route protection measure and control device of Microcomputer Protection PAS2911D 1n contact 4X12 certainly.Because the digital route protection measure and control device of Microcomputer Protection PAS2911D is provided with three-phase single shot reclosing function, contact is 4X8 and 4X9.The circuit breaker normally closed contact and VD4 breaker closing coil is not connected.Be that microcomputer protecting device has the output of electric current, electric current directly through the breaker closing coil, make breaker coil adhesive always.
The utility model content
The purpose of this utility model is to provide a kind of Microcomputer Protection reclosing and circuit breaker matching mechanism; mainly solve existing the use in the Microcomputer Protection reclosing and circuit breaker matching mechanism of debugging the digital route protection measure and control device of Microcomputer Protection PAS2911D; after sending the order of closing a floodgate; the adhesive always of breaker closing coil; can't disconnect the technical problem of closing coil, avoid the long-time energising of circuit breaker closing coil to burn coil easily.
For achieving the above object, the utility model is to realize like this.
A kind of Microcomputer Protection reclosing and circuit breaker matching mechanism, its closing circuit comprise successively the positive KM of power supply, air switch SM40, on the spot/distant place change over switch QK, close/separating brake change over switch KK, microcomputer protecting device 1n, switch cubicle interlocking contact 2QF, breaker closing coil MC, the second air switch SM40 and power-KM, described microcomputer protecting device 1n is the how digital route protection measure and control device of Microcomputer Protection PAS2911D of electrical control equipment Co., Ltd of Nanjing, and circuit breaker then is the VD4 vacuum circuit-breaker of ABB AB; It is characterized in that: increase on the described VD4 vacuum circuit-breaker that the normally closed auxiliary contact of circuit breaker, the normally closed auxiliary contact of this circuit breaker are arranged is with the 14th contact of VD4 vacuum circuit-breaker and the 7th contact short circuit.
The utility model is created compared with prior art, has following advantage and good effect: in the closing circuit of the present utility model with the 14th contact and the 17th contact short circuit of VD4 vacuum circuit-breaker.During use, can finish the breaker closing process smoothly, and the situation of having avoided the long-time energising of circuit breaker closing coil to burn coil easily.
Description of drawings
Fig. 1 is the structural representation of existing Microcomputer Protection reclosing and circuit breaker matching mechanism.
Fig. 2 is a structural representation of the present utility model.
Embodiment:
See also Fig. 2, it is a kind of Microcomputer Protection reclosing of the utility model and circuit breaker matching mechanism.As shown in the figure: its closing circuit comprise successively the positive KM of power supply, air switch SM40, on the spot/distant place change over switch QK, close/separating brake change over switch KK, microcomputer protecting device 1n, switch cubicle interlocking contact 2QF, breaker closing coil MC, the second air switch SM40 and power-KM, described microcomputer protecting device 1n is the how digital route protection measure and control device of Microcomputer Protection PAS2911D of electrical control equipment Co., Ltd of Nanjing, and circuit breaker then is the VD4 vacuum circuit-breaker of ABB AB; It is characterized in that: increase on the described VD4 vacuum circuit-breaker that the normally closed auxiliary contact of circuit breaker, the normally closed auxiliary contact of this circuit breaker are arranged is with the 14th contact of VD4 vacuum circuit-breaker and the 7th contact short circuit.
During use; the positive KM of power supply through air switch SM40, on the spot/distant place change over switch QK, close/separating brake change over switch KK, microcomputer protecting device 1n, switch cubicle interlocking contact 2QF, breaker closing coil MC, the normally closed auxiliary contact of circuit breaker, air switch SM40; then to power-KM; finish the breaker closing process, and the situation of having avoided the long-time energising of circuit breaker closing coil to burn coil easily.
The above is preferred embodiment of the present utility model only, is not to be used for limiting practical range of the present utility model, and promptly all equivalences of doing according to the content of the utility model claim change and modify, and all should be technology category of the present utility model.
Claims (1)
1. Microcomputer Protection reclosing and circuit breaker matching mechanism, its closing circuit comprise successively the positive KM of power supply, air switch SM40, on the spot/distant place change over switch QK, close/separating brake change over switch KK, microcomputer protecting device 1n, switch cubicle interlocking contact 2QF, breaker closing coil MC, the second air switch SM40 and power-KM, described microcomputer protecting device 1n is the how digital route protection measure and control device of Microcomputer Protection PAS2911D of electrical control equipment Co., Ltd of Nanjing, and circuit breaker then is the VD4 vacuum circuit-breaker of ABB AB; It is characterized in that: increase on the described VD4 vacuum circuit-breaker that the normally closed auxiliary contact of circuit breaker, the normally closed auxiliary contact of this circuit breaker are arranged is with the 14th contact of VD4 vacuum circuit-breaker and the 7th contact short circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120106197 CN201994643U (en) | 2011-04-13 | 2011-04-13 | Microcomputer protection recloser and circuit breaker matching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120106197 CN201994643U (en) | 2011-04-13 | 2011-04-13 | Microcomputer protection recloser and circuit breaker matching mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201994643U true CN201994643U (en) | 2011-09-28 |
Family
ID=44671120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120106197 Expired - Fee Related CN201994643U (en) | 2011-04-13 | 2011-04-13 | Microcomputer protection recloser and circuit breaker matching mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201994643U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311921A (en) * | 2013-05-16 | 2013-09-18 | 安徽电力铜陵县供电有限责任公司 | Double-power-supply incoming line switch and bus coupler switch interlocking wiring circuit |
| CN110336314A (en) * | 2019-05-29 | 2019-10-15 | 湖北中科能能源技术有限公司 | A kind of photovoltaic power generation 10kv grid-connection cabinet system |
-
2011
- 2011-04-13 CN CN 201120106197 patent/CN201994643U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311921A (en) * | 2013-05-16 | 2013-09-18 | 安徽电力铜陵县供电有限责任公司 | Double-power-supply incoming line switch and bus coupler switch interlocking wiring circuit |
| CN103311921B (en) * | 2013-05-16 | 2015-11-25 | 安徽电力铜陵县供电有限责任公司 | A kind of power supply entering line switch and bus connection switch interlock connection circuit |
| CN110336314A (en) * | 2019-05-29 | 2019-10-15 | 湖北中科能能源技术有限公司 | A kind of photovoltaic power generation 10kv grid-connection cabinet system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20140702 Granted publication date: 20110928 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20150102 Granted publication date: 20110928 |
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| RINS | Preservation of patent right or utility model and its discharge | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20140413 |
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| EXPY | Termination of patent right or utility model |