Testing method for multipath intelligent on-line residual current operated protective device power cut free testing device

The invention discloses a testing method for a multipath intelligent on-line residual current operated protective device power cut free testing device. The multipath intelligent on-line residual current operated protective device power cut free testing device comprises an intelligent on-line residual current operated protective device power cut free controller which is connected with a plurality group of test loop circuits and a corresponding plurality groups of relays. The multipath intelligent on-line residual current operated protective device power cut free testing device is reasonable in structure and simple in wire connection, a residual current operated protective device can be subjected to testing and trial trip operation while clients can be prevented from suffering power cut, power supply reliability and integrity of the residual current operated protective device can be improved, and multiple paths can be tested respectively.