Contactor coil and a diode

2011-06-08View Original

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What is the function of a diode in conjunction with the contactor coil?

Reply #22011-06-08

It is possible to connect and view http://www.fjvk.net/Article/ShowArticle.asp?ArticleID=3589

Reply #32011-06-08

This post was last edited by langdon88 on 2011-6-8 22:14. It’s a DC coil, right? For freewheeling and protection purposes.

Reply #42011-06-08

Is it energy-consuming braking? That’s what I think

Reply #52011-06-09

It must be a DC coil, and the diode serves to provide freewheeling current and protect the electronic components in the control circuit. This is generally how it is used in thyristor half-wave rectifier circuits. For example, this is how it is used in the speed control controllers of old-style slip-speed control motors.

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Contactor coil and a diode

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