Shanghai Fudan Microelectronics Group Company Limited

Xueqiu Yu

Yang Liu

Shusen Hao

A ground fault protection system is provided. A ground fault protection device includes a current transformer module, a detection coil module and a ground fault circuit interrupter, wherein the current transformer module includes a current transformer, the detection coil module includes a detection coil, a hot and neutral penetrate through the current transformer and the detection coil, the current transformer module outputs a mutual inductance current, when the current transformer and the detection coil form mutual inductance and form a current path with the ground fault circuit interrupter, the ground fault circuit interrupter outputs a disconnection control signal to disconnect connection of the hot and neutral with a load based on the mutual inductance current, and a detection circuit includes a signal generation module which outputs a test signal including at least one pulse signal in one cycle of an AC signal.

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Shanghai, China

Xueqiu Yu