| 摘要 |
PROBLEM TO BE SOLVED: To provide an alarming system for heat emission from a terminal part of a breaker allowing an operator, etc., to know any failure occurrence in the breaker even if he is apart from a board and capable of being easily installed even on an existing board without wiring for the board particularly. SOLUTION: An abnormal heat emission from the terminal part 2 on the power supply side and load side of the breaker 1 is sensed by a temperature sensing unit 3 and a contact signal is emitted, and on the basis of the output signal of this sensing unit 3, a failure sensor/signal generator 5 senses failure and an alarm signal is transmitted in superposing to a power cable 4 connected with the power supply side terminal part 2 of the breaker 1 on the power line carrying system, and the alarm signal is received by at least one alarming device 7 connected with the power cable 4 where the breaker 1 is connected and an alarm is issued. |
