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What is an automation work in electrical technology and suitable example?

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Question added by muhammad basit khan , Station operator , Peshawar Electric supply company Pakistan
Date Posted: 2016/01/13

If relay gets input from sensor the NO may be changed to NC, or NO may be changed to NC in contactor.  So it activate some appliances.

 

For Example.

safety door.

Fire alarm trigged by Manual, or smoke detector.

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