摘要
文章介绍了三相异步电动机电源的相序接反,断相,三相电压不平衡的故障监测保护电路的电路结构及工作原理。
The article makes examples of protection for phase missing, breaking and three phase voltage unbalancing, and makes introduction to the circuit structure and working principle of break-down monitoring and protection circuit.
关键词
三相异步电动机
保护电路
电路设计
绕组
移相电路
电压比较
Phase sequence
phase displacement circuit
rectifying and wave-filtering
voltage comparision
SSR
