Classification, requirements, constitutions and operational principle of GFCI are introduced briefly. The properties and selection of the zero-phase sequcnce current transformer core and tripper for GFCI are in detail described.
Classification, requirements, constitutions and operational principle of GFCI are introduced briefly. The properties and selection of the zero-phase sequcnce current transformer core and tripper for GFCI are in detail described.
简要介绍了漏电开关（GFCI）的分类、要求、结构及工作原理。详细叙述了漏电开关零序电流互感器及其铁芯，脱扣器的工作特性、材料选用。