从一些电梯故障统计资料发现电梯停机多数都是由于其安全装置的启动而引起的,为此电梯专业维修人员有必要对其安全回路有个比较正确清楚的了解,以确保电梯的正常运行,保证乘客的人身安全。一、安全回路的安全装置一般电梯安全回路包括相序保护继电 Statistics from a number of elevator failure found that most of the elevator downtime is due to the start of its safety device caused by the elevator maintenance professionals need to have a more accurate understanding of the safety circuit to ensure the normal operation of the elevator to ensure Passenger’s personal safety. First, the safety circuit safety devices General elevator safety circuits include phase sequence protection relay