| 摘要 |
PROBLEM TO BE SOLVED: To provide a failure indicator that can easily confirm a failure from afar by using a large indication plate and indicate it, even if a failure current is small. SOLUTION: There are provided in the failure indicator a coil 11 that detects a current flowing to a grounding wire 1 and an electric circuit 2 that rectifies an induction current of the coil 11 and outputs a secondary current. The secondary current of the electric circuit 2 is output to a solenoid 3. A magnetism reaction part 21 of the solenoid 3 is fixed to one end 26 of a movable member 4, and a failure indication member 5 is engaged with the other end 27. The induction current generated on the basis of the failure current is converted to the secondary current, and output to a drive coil 22 of the solenoid 3. A force attracting the magnetism reaction part 21 by a magnet 23 of the solenoid 3 by the secondary current is reduced, the engagement state between the other end 27 of the movable member 4 and the failure indication member 5 is released, and the failure indication member 5 is brought into a failure indication state. COPYRIGHT: (C)2006,JPO&NCIPI
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