CN2739783Y - Voltage-clamping shunt direct-off circuit breaker using diode - Google Patents
Voltage-clamping shunt direct-off circuit breaker using diode Download PDFInfo
- Publication number
- CN2739783Y CN2739783Y CN 200420110243 CN200420110243U CN2739783Y CN 2739783 Y CN2739783 Y CN 2739783Y CN 200420110243 CN200420110243 CN 200420110243 CN 200420110243 U CN200420110243 U CN 200420110243U CN 2739783 Y CN2739783 Y CN 2739783Y
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- Prior art keywords
- diode
- circuit breaker
- relay
- voltage
- direct
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- Expired - Fee Related
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Abstract
The utility model relates to a direct-breaking circuit breaker which utilizes a diode for clamping voltage and splitting currents in a comprehensive protecting device of a microcomputer type relay. The direct-breaking circuit breaker which utilizes a diode for clamping voltage and splitting currents comprises an array that is composed of a plurality of diodes. The direct-breaking circuit breaker is characterized in that a plurality of diode branch circuits which are connected in series are connected in parallel then so as to form an array group which is composed of the diodes and is connected in parallel with an operating coil of an under-voltage relay. The utility model has the advantages that various circuit breakers can be broken by a relay protecting device within a larger range of wide operating currents, a secondary return circuit of a relay protecting system is simplified, equipment is saved, and cost is reduced.
Description
Technical field
The utility model relates to the circuit breaker in the microcomputer type automation control area, and particularly the diode pincers that utilize in the PC relay comprehensive protector are pressed, shunted and directly cut-off circuit breaker.
Background technology
At present; that numerous PC relay comprehensive protectors has been realized substantially is multi-functional, structure is small and exquisite, the self-sustaining relay protection of control outlet; but there is the compact conformation volume little; so small-sized power relay of the general use of exit relay for control loop; make that like this outlet contact rating of control loop is less; can not in wide operating current scope, cut-off all types of circuit breakers, must outside protective device, connect the operation that equipment such as auxiliary relay, control box are finished circuit breaker in addition.
Summary of the invention
The purpose of this utility model is that the outlet contact rating of PC relay control loop in the solution prior art is less; can not in wide operating current scope, cut-off all types of circuit breakers; must outside protective device, connect the existing problem of operation that equipment such as auxiliary relay, control box are finished circuit breaker in addition, provide a kind of need not outside protective device, to connect in addition auxiliary relay, control box etc. utilize that the diode pincers are pressed, circuit breaker is directly cut-off in shunting.The utility model design utilizes the diode pincers to press, shunt and directly cut-off circuit breaker, comprise the array of forming by a plurality of diodes, it is characterized in that: a plurality of diode in series branch roads again and be unified into diode and form array group, and are in parallel with the under-voltage replay actuation coil.The utility model has the advantages that relay equipment can cut-off various types of circuit breakers in bigger wide operating current scope, simplified the secondary circuit of the insurance system that continues, saved equipment, also reduced cost.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is the circuit theory diagrams that the utility model is realized.
Embodiment
Comprise the array of being made up of a plurality of diodes 12 among the figure, it is characterized in that: a plurality of diode in series branch roads 3 again and be unified into diode and form array group 2, and are in parallel with under-voltage replay 4 actuation coils.
The utility model mainly is to utilize diode 1 to form about 0.7 volt voltage when conducting; using a plurality of diodes 1 to form array 2 is connected in parallel on the actuation coil of under-voltage replay 4; make array 2 when current lead-through, form enough forward drops and start under-voltage replay 4 actions; relay 4 actions also keep outlet; up to circuit breaker action and cut-off loop; and the outlet electric current that circuit breaker when action forms almost all passes through from the array 2 of diode 1 composition; under-voltage replay 4 actuation coils have been protected; make whole outlet loop can adapt to the breaker operator loop of less electric current; the breaker operator loop that can adapt to big electric current again realizes that relay equipment can cut-off various types of circuit breaker functions in bigger wide operating current scope.In the drawings, D1, D2 are the array 2 that a plurality of diodes 1 are formed, and TZ, HZ are small-sized low-voltage power relay 4.In the figure illustrated embodiment, TZ, HZ are the small-sized low-voltage power relay that small-sized low-voltage power relay 4 is selected 1.5 volt of 240 milliwatt for use, and D1, D2 select the diode array 2 of 3 amperes of 2*2 for use.(circuit breaker is being jumped the position when closing circuit 5 auxiliary contacts 6 (DL) are closed; allow to close a floodgate); protective device sends the order of closing a floodgate; closed (H) contact 7; contact 7 (H); diode array 2 (D2); combined floodgate pressing plate 8; closing circuit auxiliary contact 6 (DL); closing coil 9 forms the loop; electric current is by diode array 2 (D2); form about 1.4 volts of voltage starting under-voltage replays 4 (the about 1.5*80%=1.2V of starting resistor); under-voltage replay 4 circuit-closing contacts 11 (HZ); the outlet that keeps closing a floodgate is finished up to the breaker closing action, and closing circuit auxiliary contact 6 (DL) disconnects.Sub-gate circuit operating principle and closing circuit are identical.
Claims (1)
1. utilize that diode pincers are pressed, circuit breaker is directly cut-off in shunting, comprise the array of being made up of a plurality of diodes, it is characterized in that: a plurality of diode in series branch roads again and be unified into diode composition array group, and are in parallel with the under-voltage replay actuation coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110243 CN2739783Y (en) | 2004-11-24 | 2004-11-24 | Voltage-clamping shunt direct-off circuit breaker using diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110243 CN2739783Y (en) | 2004-11-24 | 2004-11-24 | Voltage-clamping shunt direct-off circuit breaker using diode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2739783Y true CN2739783Y (en) | 2005-11-09 |
Family
ID=35354846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420110243 Expired - Fee Related CN2739783Y (en) | 2004-11-24 | 2004-11-24 | Voltage-clamping shunt direct-off circuit breaker using diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2739783Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842956A (en) * | 2012-09-28 | 2012-12-26 | 山东电力集团公司枣庄供电公司 | Loop security automatic controlling system capable of resisting 30-degree angle error |
| CN104577998A (en) * | 2014-12-15 | 2015-04-29 | 国网冀北电力有限公司秦皇岛供电公司 | Trip and closing current circuit of adaptive circuit breaker |
-
2004
- 2004-11-24 CN CN 200420110243 patent/CN2739783Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842956A (en) * | 2012-09-28 | 2012-12-26 | 山东电力集团公司枣庄供电公司 | Loop security automatic controlling system capable of resisting 30-degree angle error |
| CN104577998A (en) * | 2014-12-15 | 2015-04-29 | 国网冀北电力有限公司秦皇岛供电公司 | Trip and closing current circuit of adaptive circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |