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  • The Working Principle and Function of Relay

    Definition – What is a relay? Relay is an electrical control device, which is an automatic switching element with isolation function. In this article, we, Wenzhou E-fun, will briefly introduce the working principle, usage and classification of relays, so that people can have a general under...
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  • Measurements Taken to Test Relays

    1.Testing Contact Resistance We can use the multimeter resistance to measure the resistance of constant closed contact and moving point, its resistance value should be 0, and the resistance value of constant open contact and moving point is infinite. It is thus possible to distinguish between a n...
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