Patent ID: 11909353
Assignee: KEHUA HENGSHENG CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 10:
11. The photovoltaic power generating system of claim 10, wherein the second detecting module comprises:
a first controllable switch; and
a first current detecting unit, coupled to the first controllable switch in series; and
the third detecting module comprises:
a second controllable switch; and
a second current detecting unit, coupled to the second controllable switch in series;
wherein the first current detecting unit is arranged to detect the first sampled current flowing to the ground from the grounding electrode when the first controllable switch is closed and the second controllable switch is opened;
the second current detecting unit is arranged to detect the second sampled current flowing to the ground from the non-grounding electrode when the second controllable switch is closed and the first controllable switch is opened; and
the controller is further arranged to generate the alarm signal when the ground-fault occurs.