STRAY CURRENT CONTROL DEVICE AND STRAY CURRENT CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To provide a stray current control device and the like that can control a stray current without implementing measures to a communication line in advance.;SOLUTION: An ampere meter to measure the current value of a stray current flowing through a shield line 32 is attached. The voltage between a ground terminal 41 and a ground terminal 61 is measured, and the voltage of a variable direct current power supply 102 is adjusted to be equal to the measured voltage. A series circuit 101 is connected between the ground terminal 41 and ground terminal 61, and the value of resistance of a variable resister 103 is set to 0. The voltage of the variable direct current power supply 102 is changed so that the stray current will become small. A communication line 3 is cut off from a first communication device 1 and a second communication device 2. The value of resistance of the variable resister 103 is set to 10 kΩ or more. The voltage output from the variable direct current power supply 102 is stopped. The series circuit 101 is detached.;COPYRIGHT: (C)2013,JPO&INPIT