Circuit breaker capable of filtering and eliminating hydraulic oil gas

Abstract

The invention relates to the field of circuit breakers, in particular to a circuit breaker capable of filtering and eliminating hydraulic oil gas. A main oil pipe comprises an oil inlet and an oil outlet. A side oil pipe is arranged on one side of the main oil pipe and communicates with the main oil pipe through a communication port. The side oil pipe communicates with an air outlet pipe, and a filter membrane is arranged between the air outlet pipe and the side oil pipe. The air outlet pipe is provided with two long-strip-shaped holes. An air adjusting belt is arranged in the long-strip-shaped holes and comprises a belt body, and the belt body is provided with a plurality of arrayed low-pressure films. According to the circuit breaker, hydraulic oil gas is conveniently eliminated in time;and meanwhile, through the arrangement of the filter membrane, the quality of hydraulic oil is improved, the service cycle of the hydraulic oil is prolonged, and safe and efficient running of the circuit breaker is achieved.

Description

technical field [0001] The invention relates to the field of circuit breakers, in particular to a circuit breaker capable of filtering and removing hydraulic oil and gas. Background technique [0002] The high-voltage circuit breaker is also called a high-voltage switch, which plays a control role in the high-voltage circuit. It cuts off or closes the no-load current and load current in the high-voltage circuit during normal operation, and quickly disconnects the circuit under the action of the relay protection device in case of a fault. . The working state of the circuit breaker, that is, its opening or closing action is controlled by its action mechanism. Therefore, from the type of circuit breaker action mechanism, it can be divided into: hydraulic operating mechanism, electromagnetic operating mechanism, spring energy storage operating mechanism, etc. During the operation of the circuit breaker of the existing hydraulic operating mechanism, with the work of the pump bo...

AI Technical Summary

Problems solved by technology

Due to the existence of gas, the oil pump cannot effectively input the hydraulic oil from the low-pressure part to the high-pressure part, resulting in the continuous operation of the oil pump, but the pressure cannot be increased, which may endanger the safety of the cut-off work of the circuit breaker in severe cases

[0003] In addition, the hydraulic oil in the circuit breaker will produce certain impurities during use. The existing method is usually to replace it regularly, which will increase maintenance time, labor and operating costs.

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