| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a circuit protection system. <P>SOLUTION: A circuit protection system (100) includes: a first current detection device (102) operating so as to measure a current of a first phase (151) of a voltage source; a second current detection device (102) operating so as to measure a current of a second phase (153) of the voltage source; and a logic section (110) communicably connected to the first current detection device (102) and the second current detection device (102). The logic section (110) receives measured currents from the first and second current detection devices (102) to decide whether the measured current of the first phase (151) is smaller than a threshold current value or not in a predetermined period, and next operates so as to output such a display that a short circuit exists in the first phase (151) of the voltage source, in response to that the measured current of the first phase (151) is decided as not smaller than the threshold current value in the predetermined period. <P>COPYRIGHT: (C)2012,JPO&INPIT |
