Pole-mounted circuit breaker switch structure

Abstract

A pole-mounted circuit breaker switch structure is disclosed in the invention, and comprises a connecting sleeve and a connecting column, a first binding post and a second binding post are arranged on the connecting sleeve and the connecting column respectively, the connecting column is connected into the connecting sleeve in a sliding mode and is in clearance fit with the connecting sleeve, the connecting sleeve is a cylinder with one end open, an isolation spring is arranged at the bottom of the connecting sleeve, one end of the connecting column is extruded to the isolation spring, the other end of the connecting column extends out of the connecting sleeve, and the second binding post can extrude the isolation spring along with the connecting column to be communicated with the first binding post; a second positioning hole is formed in one side of the connecting column, and a release is inserted into the second positioning hole to position the connecting column; and at least the connecting column is made of a ceramic material. According to the device, the generation space of the arc can be greatly reduced, the generation time of the arc is greatly shortened, and the arc extinguishing effect and reliability are improved.

Description

technical field [0001] The invention relates to the field of high-voltage power transmission, and more particularly relates to a pole-mounted circuit breaker switch structure. Background technique [0002] The circuit breaker on the pole refers to the circuit breaker installed and operated on the pole. During the use, the switch of the high-voltage circuit will generate arc sparks. In order to prevent the arc from causing damage to the surrounding components, and to prevent the spark from generating heat when the switch is closed Melting or burning black switch contacts requires arc extinguishing treatment for high voltage circuit switches. [0003] In order to achieve the effect of arc extinguishing, the existing pole-mounted circuit breakers usually use a vacuum interrupter for arc extinguishing during switching. However, the reliability of the vacuum interrupter is poor and production is difficult. If the vacuum degree of the arc chamber becomes poor, severe arc discharg...

AI Technical Summary

Problems solved by technology

[0003] In order to achieve the effect of arc extinguishing, the existing pole-mounted circuit breakers usually use a vacuum interrupter for arc extinguishing during switching. However, the reliability of the vacuum interrupter is poor and production is difficult. If the vacuum degree of the arc chamber becomes poor, severe arc discharge will occur when it is turned off or on, which will not only cause equipment damage, but may also cause casualties

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