摘要
论述了为确保剩余电流断路器的正常工作需要合理地选择剩余电流断路器的动作特性的必要性,即根据用于间接接触保护、直接接触保护,或用于漏电火灾保护,应选用不同的动作电流和不同的动作时间。此外,还需要正确安装和接线,根据不同的电源系统及设备的情况进行接线。列举了一些错误接线的例子。最后还介绍了剩余电流断路器脱扣后如何寻找故障的步骤。
In order to ensure work properly of residual current circuit breakers, the necessity to select the operating characteristic of the residual current circuit-breakers reasonably was described, that is to select the different operating current and different breaking time according to indirect contact protection and direct contact protection, or the fire protection due to electric fault. Besides that it is necessary to install and wire correctly according to different power system and the state of equipment. Some examples of wrong wiring were also given. Finally the procedure how to seek the failure was presented after the residual current circuit breakers has been tripped.
出处
《低压电器》
北大核心
2005年第2期47-51,共5页
Low Voltage Apparatus
关键词
剩余电流断路器
直接接触
间接接触
电气火灾
动作特性:额定剩余动作电流
分断时间
故障
residual current circuit breaker
direct contact
indirect contact
electrical fire
opera- ting characteristic
rated residual operating current
breaking time
failure
