Relays

What is a relay? Analysis of the principle of high-frequency relays.

I. What are the uses of relays? A relay is an electrical control device that causes a predetermined step change in the ...

Articles
2026-02-22

How to quickly calculate the coil temperature field of a high-voltage DC relay?

summary Researchers Li Ruyao and Yang Wenying from the School of Electrical Engineering and Automation at Harbin Instit...

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2026-02-22

Differences and applications of relays and contactors

Many applications require switching circuits with high isolation or the ability to switch high voltage and high current...

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2026-02-22

Relays—the foundation of electrical automation

Definition of a relay : A relay is an automatic control device in which the output changes abruptly when the input quan...

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2026-02-22

What is the function of an intermediate relay? How does it differ from a contactor?

Many beginners in electrical work are familiar with contactors, understanding their uses and performance. However, they...

Articles
2026-02-22