Vacuum Circuit Breaker VCB Vacuum Degree Tester Delivered

Vacuum circuit breaker is a common method for judging whether the vacuum degree of the vacuum tube has deteriorated is the power frequency withstand voltage method. This method is only an arc extinguishing chamber that can judge the serious deterioration of the vacuum degree. When the vacuum degree deteriorates to 10-2----10-1 Pa, although the breakdown voltage does not decrease, the arc extinguishing chamber has already failed. EP-4000 vacuum switch vacuum degree tester adopts a new excitation coil, and uses the magnetron discharge method to test the vacuum degree of the arc extinguishing chamber without disassembling the arc extinguishing chamber. At the same time, the microcomputer is used for synchronous control and data acquisition and processing, so that the field test sensitivity of the vacuum degree of the arc extinguishing chamber reaches 10-5Pa. The most prominent feature of this instrument is the use of a new excitation coil and data processing method to achieve the measurement of vacuum without disassembly. This instrument has the advantages of convenient use, simple operation, no disassembly measurement and high test accuracy. It is a practical testing instrument widely used in power, steel, petrochemical, textile, coal, railway and other departments that use vacuum switches.