| 摘要 |
PURPOSE: A voltage detector is provided to check an electric leakage using the rotation force of a rotating unit when the temperature of a head part is changed. CONSTITUTION: A screw coupling unit is installed in a bus bar or distribution board. A coupling unit includes a head part installed in the screw coupling unit. A heat or conductivity detector(40) is installed in the end of the coupling unit. An inlet groove(41) is installed in the head part. A magnetic ring(42) is installed in an inner circumference of the inlet groove and has an alternative magnetic pole. An insulator(43) insulates between the magnetic ring and the head part. A rotating unit(44) is rotatably installed in the magnetic ring. The insulating oil(45) is filled in the inlet groove. The cover unit is coupled in the head part and blocks the inlet groove. A conductive unit provides the rotation torque to the rotating unit. |
