Electromagnetic relays
Published 17.07.2010
Presenter Anton Pankratov
Different electromagnetic relays are widespread in the modern automatics and teleautomatics.
An electromagnetic relay is a very simple device. It is a regular electromagnet with an armature hinged to it.
When the coil passes a current the armature is attracted to the core and closes special contact plates, switching on or off certain devices in electrical circuits ...
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