CN201323443Y - Miss trip protector - Google Patents
Miss trip protector Download PDFInfo
- Publication number
- CN201323443Y CN201323443Y CNU2008201699244U CN200820169924U CN201323443Y CN 201323443 Y CN201323443 Y CN 201323443Y CN U2008201699244 U CNU2008201699244 U CN U2008201699244U CN 200820169924 U CN200820169924 U CN 200820169924U CN 201323443 Y CN201323443 Y CN 201323443Y
- Authority
- CN
- China
- Prior art keywords
- miss
- trip
- circuit breaker
- tripping
- protector
- 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 discloses a miss trip protector, which is characterized by comprising a time relay, a middle relay and a circuit breaker auxiliary contact. The time relay is respectively connected with the middle relay and the circuit breaker auxiliary contact, a first terminal and a second terminal are connected with a power positive pole and a power negative pole, a third terminal is connected to a circuit breaker breaking node, and a miss trip signal output end is connected to a previous standby circuit breaker to output a miss trip signal. The miss trip protector is further equipped with a connecting sheet, and the connecting sheet is connected between a normally close contact of the middle relate and the miss trip signal output end for users to select whether the miss trip protector functions or not. Compared with the prior art, the utility model has the advantages that the miss trip protector can overall treats signals of electric fault breaking and technique breaking, and improves miss trip protection functions.
Description
Technical field:
The utility model relates to a kind of tripping protector.
Background technology:
Tripping refers to because of circuit or circuit breaker failure, and trip signal sent in the regular hour of back, the circuit breaker action of not tripping.After this situation occurring, controller or relay protector beard and hair go out the tripping signal and act on tripping operation for the upper level back-up breaker, prevent that fault from further enlarging.The tripping defencive function that present relay protector causes electric fault has been done very completely, but powerless to electric extraneous trip signal (as the chain parking of technological requirement).The incomplete reason of above-mentioned tripping defencive function occurring is: just start the tripping function in case the tripping principle of work and power of relay protector is based on the fault tripping signal that occurs on electric; still be in "on" position if detect circuit breaker after time-delay a period of time; just send the tripping signal, the starting that is to say the tripping function must rely on electricly breaks down and sends trip signal.But when the trip signal that has chain requirement to send on the technology, electric be in shape under, can not send out trip signal, can't start the tripping function.This moment is if fault such as circuit breaker occurs, can't cascading trip, will cause unnecessary loss to process equipment.
Summary of the invention:
Technical problem to be solved in the utility model is to overcome existing above-mentioned deficiency in the prior art; and a kind of mechanism according to tripping protection is provided; its function is further enlarged, technologic tripping function is also included, form complete tripping protector.
The technical scheme in the invention for solving the above technical problem is: this tripping protector; it is characterized in that being provided with the time relay, auxiliary relay, circuit breaker auxiliary contact; the time relay is connected with auxiliary relay, circuit breaker auxiliary contact respectively; the first terminal, second terminal connect positive source and power cathode; the 3rd terminal connects the circuit breaker trip node; the tripping signal output part is received higher level's back-up breaker, output tripping signal.
The utility model also is provided with brace, and brace is connected between the normally-closed contact and tripping signal output part of auxiliary relay.
The utility model compared with prior art has the following advantages and effect: can overall treatment electric fault tripping operation and technology trip signal, perfect tripping defencive function.
Description of drawings:
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment:
Referring to Fig. 1, present embodiment tripping protector comprises time relay T, auxiliary relay K, circuit breaker auxiliary contact DL and brace L, time relay T is connected with auxiliary relay K, circuit breaker auxiliary contact DL respectively, and the first terminal 1, second terminal 2 meet positive source+V and power cathode-V; The 3rd terminal 3 connects the circuit breaker trip node; Tripping signal output part (comprising the 4th terminal 4, five terminal 5) is received higher level's back-up breaker, and output tripping signal, brace L are connected between the normally-closed contact and tripping signal output part of auxiliary relay K (the 4th terminal 4 or five terminal 5).No matter be the electric fault trip signal that relay protector J comes; still other places technology relay K of coming ' the process concatenation trip signal; so long as be sent to trip signal one appearance of circuit breaker trip coil TQ; time relay T just moves; and maintenance self-locking; truly trip until circuit breaker, auxiliary contact DL disconnects, and time relay T recovers power failure state.If circuit breaker is tripping operation not, time relay T conduction is to the disconnecting point action of delaying time, auxiliary relay K dead electricity; the normally-closed contact closure of auxiliary relay K; send the tripping signal to higher level's back-up breaker from the tripping signal output part, tripping operation higher level circuit breaker reaches the protection purpose.
Brace L can select the whether generation effect of tripping protector for the user, and is user-friendly.
This circuit also has following function: 1, because of time relay T band self protective function, can not cause that breaking coil TQ can not reliably trip because of the time that electric fault trips or the technology trip signal continues is too short.2, this circuit also can shield to the operating power dead electricity.
Claims (2)
1, a kind of tripping protector; it is characterized in that: be provided with the time relay, auxiliary relay, circuit breaker auxiliary contact; the time relay is connected with auxiliary relay, circuit breaker auxiliary contact respectively; the first terminal, second terminal connect positive source and power cathode; the 3rd terminal connects the circuit breaker trip node; the tripping signal output part is received higher level's back-up breaker, output tripping signal.
2, tripping protector according to claim 1 is characterized in that: also be provided with brace, brace is connected between the normally-closed contact and tripping signal output part of auxiliary relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201699244U CN201323443Y (en) | 2008-12-08 | 2008-12-08 | Miss trip protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201699244U CN201323443Y (en) | 2008-12-08 | 2008-12-08 | Miss trip protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201323443Y true CN201323443Y (en) | 2009-10-07 |
Family
ID=41160815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201699244U Expired - Fee Related CN201323443Y (en) | 2008-12-08 | 2008-12-08 | Miss trip protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201323443Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826719A (en) * | 2010-05-29 | 2010-09-08 | 珠海欧力配电自动化系统有限公司 | Trip-proof lockout microcomputer protection system |
-
2008
- 2008-12-08 CN CNU2008201699244U patent/CN201323443Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826719A (en) * | 2010-05-29 | 2010-09-08 | 珠海欧力配电自动化系统有限公司 | Trip-proof lockout microcomputer protection system |
| CN101826719B (en) * | 2010-05-29 | 2012-07-18 | 珠海欧力配电自动化系统有限公司 | Trip-proof lockout microcomputer protection system |
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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 |
Granted publication date: 20091007 Termination date: 20161208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |