Interview Questions Answers in Electrical Engineering

ashirbad

{ City } bhubaneswar
< Country > india
* Profession * executive engg
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Questions / { ashirbad }

Questions Answers Category Views Company eMail

what is the operating principle of contactor(power).along with disection?

NASA, Tech Mahindra,

3 Electrical Engineering 17187

what do you mean by mf of energy meter & its formula?

4 Electrical Engineering 33706

Answers / { ashirbad }

Question { NASA, 17187 }

what is the operating principle of contactor(power).along
with disection?

Answer

its an electrical device used for supplying controlled
power supply to electrical equipment along with some other
auxilary contact i.e. NO/NC.or simply u can say its a
distant switching device.it has one magnetic coil,when ever
we give control supply to its coil its get energised &
pulls up main contact for supply leads to make electrical
ckt.again we remove control supply to its coil its de-
energise to release contact.

Is This Answer Correct ?

24 Yes

9 No