Insulation strength testing device applicable to breaker vacuum arc-extinguishing chambers

Abstract

The invention discloses an insulation strength testing device applicable to breaker vacuum arc-extinguishing chambers. The device comprises a voltage regulation control part and a test product carrying part, wherein the voltage regulation control part is connected with the test product carrying part; a plurality of tested breaker vacuum arc-extinguishing chambers are respectively arranged in the test product carrying part; the voltage regulation control part comprises a remote control voltage regulation module, a power supply conversion module, a voltage regulation module and a voltage increasing module; the power supply conversion module, the voltage regulation module and the voltage increasing module are connected with the remote control voltage regulation module; the power supply conversion module is connected with an external power supply; the voltage regulation module is connected with the voltage increasing module; the voltage increasing module is connected with the test product carrying part. Through the design of the device, the insulation strength test for a plurality of vacuum arc-extinguishing chambers can be carried out at the same time, thereby improving the test efficiency; the device comprises the remote control voltage regulation module, so that testers can set test voltage and test time and the like out of a safe distance; meanwhile, possible personal safety accidents in the testing process can be effectively avoided.

Description

technical field [0001] The invention relates to power control testing equipment, in particular to a dielectric strength testing device for a vacuum interrupter of a circuit breaker. Background technique [0002] The vacuum interrupter is through the good insulation of the vacuum inside, so that the medium and high voltage circuit can quickly extinguish the arc and suppress the current after the power supply is cut off, so as to avoid accidents and accidents. Vacuum interrupters for circuit breakers are mainly used in substations and power grid facilities in power systems. They have the characteristics of energy saving, material saving, small size, low maintenance costs, reliable operation and no pollution. The degree of vacuum of the vacuum interrupter is very important, and the degree of sealing of the vacuum interrupter during operation can determine whether the circuit breaker is successfully disconnected or not. [0003] However, the method of measuring the dielectric s...

AI Technical Summary

Problems solved by technology

[0003] However, the method of measuring the insulation strength of the vacuum interrupter at this stage is limited to the withstand voltage test after the vacuum interrupter is connected to the circuit breaker operating mechanism. For individual spare parts, the gap insulation strength cannot be determined.

Once a sudden failure occurs, it is necessary to carry out emergency repairs, which will increase the workload of repairs

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