Voltage tester for standby voltage transformer of traction substation

The utility model discloses a voltage tester for a standby voltage transformer of a traction substation, which comprises a box body and a second spring, one side of the box body is connected with a hinge, and one side of the hinge is connected with a box cover; a testing device is embedded in the box body, fixing plates are fixed to the two sides of the testing device, fixing rods are fixed to the tops of the fixing plates, an embedding groove is formed in the position, away from the fixing rods, in the box cover, a groove is formed in the position, close to the fixing plates, in the box body, and a first extrusion groove is formed in one side of the groove. The voltage tester for the standby voltage transformer of the traction substation is provided with a fixing plate and a fixing rod, the fixing plate can be driven to move by pulling the fixing rod, the fixing plate can move outwards along a groove, at the moment, the fixing plate can be stressed to push a steel ball, and the steel ball can extrude a first