| 摘要 |
PURPOSE:To eliminate unmatched state of system, by providing an interlocking mechanism between breakers and additionally employing an abnormal signal from a load side device as an external factor for operating the breaker. CONSTITUTION:A power source device PS is provided with a breaker B1 in a power receiving section, and power is fed through the breaker B1 and breakers b1-bn for respective systems to respective devices A-N and a-n. Respective devices are classified according to the level of influence onto the system. For example, abnormality of an important device B is transmitted to an interrupter (b2) so as to interrupt interlocked breakers (b1)-(bn), thus interrupting the breaker B1 and the entire system. Fault in a non-important device (n) is kept as it is and the device (n) can be operated continuously. Upon occurrence of abnormality in a power system for a unimportant device N, a breaker (bn) functions to stop power supply to the devices N, n. |
