Wireless power generator rotor grounding detection device

The utility model belongs to the technical field of power generator equipment, and particularly relates to a wireless power generator rotor grounding detection device, which comprises a grounding detection transmission device, a grounding fault signal receiving device and a signal processing device, wherein the grounding detection transmission device is provided with an infrared transmission source and the grounding detection transmission device is fixed on a power generator rotor shaft via a bolt; the positive and negative wiring column of the grounding detection transmission device is connected with the positive and negative rotor conductive screw of a rotor coil via a cable; the grounding fault signal receiving device is arranged on a power generator shell; the signal processing device is arranged in an excitation control cabinet; and the signal processing device is connected with the grounding fault signal receiving device via a cable. Compared with the prior sliding ring and electric brush grounding detection structure, the wireless power generator rotor grounding detection device has the advantages that operation is safe, reliable and stable; friction losses do not exist; frequent maintenance is not needed; mounting is convenient and flexible; and popularization and application values are good.