| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a current transformer protector which performs protection even if an abnormal voltage is generated on a current transformer for an extended period while inhibits diversion of a current to a protector side during a normal period. <P>SOLUTION: The current transformer protector includes a plurality of nonlinear resistors 110, an abnormal time current detection part 120, a circuit shorting part 130, and an abnormal time circuit part 140. In the case where an abnormal voltage occurs, presence of an abnormal time current that is outputted from the nonlinear resistor 110 is detected at the abnormal time current detection part 120, and the circuit shorting part 130 causes the abnormal time circuit part 140 to be shorted. <P>COPYRIGHT: (C)2013,JPO&INPIT |
