What is a Loop Resistance Tester Used For - Yangzhou Darui
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For those who are new to power work, when they come across a loop resistance tester, they may wonder what this instrument is used for?
1. The loop resistance tester, also called contact resistance tester, or switch loop resistance tester, is mainly used to detect the contact (loop) resistance of high-voltage switches. It can also be used for high-precision measurement of DC resistance of cable lines, as well as situations requiring high current and micro-resistance measurement. Taking high-voltage switches as an example, in simple terms, the loop resistance tester is used to check whether the high-voltage switch is closing properly. The performance of high-voltage switches also affects the normal operation of the entire power system, so detecting the loop resistance of high-voltage switches is a very important testing task in power work.
2. Loop resistance testers are divided into manual testing instruments and automatic testing instruments. Taking the SX-100A loop resistance tester as an example, it is an intelligent fully automatic loop resistance tester. The automatic measurement of this instrument is reflected in that during testing, there is no need to manually adjust the current size; the instrument itself can adjust the test current size to stabilize the current at the required measurement level.
3. The instrument adopts switching power supply technology, which can continuously output high current for a long time, overcoming the drawbacks of instantaneous current in pulse power supplies. It can effectively break through the oxide film on switch contacts and obtain good test results.
4. In addition to the above advantages, the loop resistance tester also has storage and printing functions, capable of transmitting test data and printing test data on-site. Moreover, the instrument has very stable test performance and high test accuracy.
Now you know that the loop resistance tester is mainly used to detect the loop resistance of high-voltage switches, right?
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
