| 摘要 |
PURPOSE: To obtain a power-supply system which prevents a tripping breaker from being destroyed when a battery is cut off by the tripping breaker from a system by means of an emergency cutoff signal. CONSTITUTION: A relay 9 whose contact is opened after the operation of a tripping breaker 2 is connected across the tripping breaker 2 which stops the supply of electric power to a power supply 4 from a battery 1 by means of an emergency cutoff signal 7 and the battery 1. Thereby, it is possible to prevent the supply of the electric power from the battery 1 from being continued to a coil 3 for the tripping breaker when the contact of the breaker 9 is opened, and it is possible to prevent the tripping breaker from being destroyed. |
