- Instructor: Dessalegn Dires
- Lectures: 6
- Duration: 52 weeks
Relay is Electromechanical control switch with normally closed (NC) and Normally open (NO) Contacts controlled by Electromagnetism(Coil).
The course contains structure or architecture of relays .working principle , Types of Relays ,Symbols and wiring diagram in system such as Substation control ,Switch gears.
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