The invention discloses a high-
voltage power zero sequence
current transformer for a
power transmission and distribution line. The high-
voltage power zero sequence
current transformer comprises a base tube, a core column, a bolt, a
current transformer and a clamping plate
assembly, wherein the base tube comprises a press tube part and a sealing plate part, the sealing plate part and the press tube part are oppositely and fixedly arranged, the sealing plate part is provided with a limitation sliding hole and threading holes, crimping bosses are arranged on an inner wall of the press tube part, a conical crimping surface is arranged on a
peripheral wall of the core column, the clamping plate
assembly comprises wire clamping plates, a guide sliding table is arranged on an inner wall of each wire clamping plate, a guide sliding groove is formed in each wire clamping plate, a limitation sliding post is arranged on each crimping boss and is adaptive to the guide sliding groove, each wire clamping plate is arranged right opposite to one corresponding crimping boss, the current
transformer comprises an annular sensitive body, each wire clamping hole is formed in a hole cavity of the annular sensitive body, each wire clamping plate is pushed to move along a radial direction of the press tube part by rotating the bolt, the base tube is provided with an installation screw hole, the installation screw hole passes through a wall body of the press tube part along the radial direction of the base tube, and a
temperature sensitive device is fixedly arranged in the installation screw hole. The high-
voltage power zero sequence current
transformer has the function of real-time
temperature monitoring.