| 摘要 |
PROBLEM TO BE SOLVED: To provide a shortage voltage tripping device having a fast-in auxiliary switch that can be applied regardless of the type of the operating handle of the circuit breaker. SOLUTION: This is a shortage voltage tripping device 8 which has a tripping lever 15 combined with an electromagnet 13 and a fast-in auxiliary switch 14 connected to the circuit of the electromagnet, and in which the auxiliary switch is inputted in advance of the main circuit contact of the circuit breaker at the ON operation of the circuit breaker. A drive lever 19 for switching operation is provided connected with the contact point holder 14d of the above auxiliary switch, and after drawing out the rotating axle 19a of the drive lever from the case to the side way, the rotating axle of the drive lever is engagement coupled to the switching lever axle 3c-1 provided on the switching mechanism 3 of the circuit breaker which the shortage voltage tripping device 8 is installed on the circuit breaker 1, and the fast-in auxiliary switch is inputted interlocked with the switching lever at the ON operation of the circuit breaker.
|
