Analysis of Low Temperature Failure of High Voltage DC Contactors
High voltage DC contactors are an automatic control component widely used in measurement,transmission,and control systems in aerospace,as well as distribution systems in civil electric vehicles,charging stations,and photovoltaic power generation.In the operating environment of high-voltage DC contactors,some low temperature environments require a temperature of-55℃.At this temperature,many contactors may ex-perience power failure.This article conducts fault recurrence,product shell disassembly analysis,experimental comparison,and theoretical analysis for this failure mode,exploring the mechanism of product failure and provi-ding solutions.It is hoped that this has reference significance for relevant practitioners.
High-voltage DC contactorLow-temperature failureFailure analysis
NETL
NSTL
万方数据
维普
