直流电阻和回路电阻测量中一种扩大回路接线法

An expanded loop wiring method in DC resistance and loop resistance measurement

对直流电阻和回路电阻的测量都是电气设备预试中常见的试验项目,对判断电气设备导电回路的连接和接触状况起到重要作用。然而在实际中有时会受电气设备或测试环境条件的限制,测试结果并不能准确反映被测量的真实值。本文提出一种扩大回路接线法,通过理论计算及实际测试验证该方法的有效性。

DC resistance and loop resistance measurement are common test items in the preliminary test of electrical equipment.They play an important role in judging the connection and contact status of the electrical equipment's conductive loop.However,they are sometimes limited by electrical equipment or test environmental conditions.The test result does not accurately reflect the true value being measured.This paper proposes an expanded loop wiring method,which can reflect the measured true value,and the effectiveness of the method is verified through theoretical calculations and actual tests.