Cast current transformer maintenance method for nuclear power station

The invention relates to the technical field of nuclear power station equipment management, and provides a cast current transformer maintenance method for a nuclear power station, and the method comprises the following steps: carrying out the ray inspection of a cast current transformer through an X-ray device; determining the digging and chiseling range and the digging and chiseling depth of thecast current transformer according to the inspection result, and then roughly digging the casting layer of the cast current transformer by using a digging and chiseling tool; finely digging the winding woven belt of the cast current transformer; cutting off the fault leading-out wire of the cast current transformer, connecting a new leading-out wire into the winding of the cast current transformer, and connecting the new leading-out wire with a binding post; and performing casting on the digging and chiseling position of the cast current transformer. The maintenance method of the cast currenttransformer for the nuclea