Circuit breaker series connection type electrical trip prevention circuit
A technology of anti-jump circuit and circuit breaker, which is applied in the electrical field, can solve the problems of too many anti-jump circuit relays and complex structure, and achieve the effect of clear and intuitive electrical control logic relationship, reduced complexity, and convenient use and maintenance
Inactive Publication Date: 2015-10-28
ANYANG INST OF TECH
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the problems of too many relays and complex structures in the existing anti-jump circuit, and provide a circuit breaker series electrical anti-jump circuit
Method used
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[0007] The present invention will be further described below with reference to the accompanying drawings and examples, and the embodiments of the present invention include but not limited to the following examples.
[0008] Such as figure 1 As shown, a circuit breaker series electrical anti-jump circuit, including trip control circuit, closing control circuit and anti-jump control circuit, mainly consists of trip holding relay TBJ, closing holding relay HBJ, anti-jump relay FTJ, circuit breaker auxiliary Contact DL, tripping coil TQ, closing coil HQ, tripping switch TZK, closing switch HZK constitutes. One end of the trip control circuit of the circuit breaker series electrical anti-trip circuit is connected to the negative control bus (-KM), and the other end is connected to the trip coil TQ, the circuit breaker normally open auxiliary contact DL1, the trip holding relay TBJ, and the trip switch TZK in turn. It is connected in series with the parallel circuit of the first no...
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The invention discloses a circuit breaker series connection type electrical trip prevention circuit, and belongs to the electrical field. The trip prevention circuit is composed of a trip control circuit, a closing control circuit and a trip prevention control circuit, wherein one end of the trip control circuit is connected with a negative electrode control bus, and the other end of the trip control circuit is connected with a trip coil, a circuit breaker, a trip holding relay and a parallel circuit of a trip switch and the trip holding relay in series and then connected with a positive electrode control bus; one end of the closing control circuit is connected with the negative electrode control bus, and the other end of the closing control circuit is connected with a closing coil, a circuit breaker, a trip prevention relay, a closing holding relay and a parallel circuit of a closing switch and the closing holding relay in series and then connected with the positive electrode control bus; and one end of the trip prevention control circuit is connected with the negative electrode control bus, and the other end of the trip prevention control circuit is sequentially connected with a parallel circuit of the trip prevention relay and the trip holding relay, the trip prevention relay, and a parallel circuit of the closing switch and the closing holding relay in series and then connected with the positive electrode control bus.
Description
technical field [0001] The invention relates to an electrical anti-jump circuit of a circuit breaker, in particular to a circuit breaker series electrical anti-jump circuit, which belongs to the electrical field. Background technique [0002] The so-called jumping of the circuit breaker means that the closing output terminal always has the closing voltage due to reasons such as manual closing of the closing circuit or adhesion of remote closing contacts. After the switch trips due to a fault, it will be closed again immediately, and the protective action switch will trip again, because the closing voltage is always added, and the switch will be closed again. Therefore, this phenomenon is commonly known as "switch jumping". Once the switch jumps, it will cause damage to the switch, and even cause the switch to explode if it is serious. Therefore, the anti-jump function is an indispensable part of the operation circuit. The anti-jump circuit has a parallel type and a series t...
Claims
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IPC IPC(8): H02H7/22
Inventor 张天鹏翟亚芳张修太李正斌卢春华王頔石峰于江涛程万里
Owner ANYANG INST OF TECH