Dynamic Resistance Measurement (DRM) is an essential testing technique for assessing contact resistance in electrical systems, particularly in power transmission and distribution systems. This technique involves using a DRM meter or contact resistance tester to measure the resistance between two metallic contacts in real-time conditions, such as when an electrical current is flowing across them.
It is crucial to note that DRM is a nondestructive testing technique, meaning the test does not damage the contacts. The tests are also safe to conduct provided all safety precautions are taken, and all personal protective equipment is worn when working with high-voltage systems.
Wuhan huayi electric power technology developed and researched the new Dynamic resistance measurement meter. Its panel is ergonomically designed, in line with operating practices, and uses high-frequency switching power supplies and digital circuit technology for measuring the contact resistance of the circuit switch control device. Test current is DC 100A, 200A. In the case of DC 100A, 200A can be directly measured contact resistance test results with a large-screen LCD, and with data storage, print, time settings, and other functions, and another gear 50A, 150A for user selection; custom test time, maximum 599S, much larger than the standard requirements of 60S; resolution 0.01μΩ and very stable. Meet the power; the electricity sector on-site high voltage switch maintenance and high-voltage switch factory contact resistance testing requirements.