| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a breaking auxiliary device capable of early functioning a breaker irrespective of load-side impedance in a power feeding system. <P>SOLUTION: A breaking auxiliary device 10, mounted on a power feeding system having a circuit breaker 110 installed to be placed between a power supply device 150 and a communication device 160, includes: an ammeter 11 for detecting a current value flowing into the communication device; a closed circuit mechanism 12 disposed between the breaker and the communication device, for making a cableway W for supplying power to the communication device into an insulation state or a short-circuit state; and when the current value detected by the ammeter is a preset current threshold or larger, a switch controller 13 for making the closed circuit mechanism 12 switch from the insulation state to the short-circuit state. <P>COPYRIGHT: (C)2013,JPO&INPIT |
