Inductive power-obtaining device of high-voltage line robot and working method of inductive power-obtaining device

The invention discloses an inductive power-obtaining device of a high-voltage line robot and a working method of the inductive power-obtaining device. The device comprises a relay and a rectifier bridge circuit which are sequentially connected at two ends of a secondary coil of a power-obtaining transformer in series, wherein the rectifier bridge circuit is connected with a storage battery and a voltage stabilizer respectively, the relay is connected with a control circuit, the storage battery is connected with a current detection circuit, and the current detection circuit is connected with the control circuit in series; contacts of the relay divide the secondary coil of the power-obtaining transformer into two parts with different numbers of turns and controlled by the control circuit to be opened and closed, so that the turn ratio of the power-obtaining transformer is switched. The device has the benefits as follows: the turn ratio of the power-obtaining transformer is switched through the control circuit, and the output voltage and current are effectively regulated.