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Question
What is a circuit breaker contact multiplier relay?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
nc is normally contact to common terminal,when gives supply to the relay common contact to no contact 
Is This Answer Correct ?    0 Yes 0 No
Anand
 
Answer
# 2
You mean the aux switches of cb ? There are NO and NC
contacts (determined when the cb is in open position)which
operate when the cb opens or closes.
 
Is This Answer Correct ?    2 Yes 9 No
K.prakashchandra
 
 
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
why neutral grounding transformer is used for generator and why it is not used for transformers? UPCL 1
1. If we apply dc supply to the primary winding of transformer it will be burnt out. similarly dc supply is given to field winding of syn. motor and armature winding of dc motor, they are safe. (Remember both windings inductive nature) what is the reason behind that?   1
what is main difference between live tank and dead tank current transformer?   1
what is the voltage of insulation megger that should be used for measuring the resitance of 66kv equipments. DEWA 2
WHAT ARE THE CAUSES OF MOTOR VIBRATION? Equate 2
What are the protection schemes used for protection of transformers ? Engineers-India-Limited 3
How can w select the cable size for different rating load & also waht r factors affecting the during selection of cable? Bosch 11
how can we connect a distance relay to CT core that is for backup protection or metering?   1
why the oscillator doent need the ac voltage??how can it produce the ac voltage by applying the dc voltage only??   2
Differenc between the resistance and resisters?   5
Which are Electrical componet and Electronics componet??   2
what are the alternator cooling system? how it is represented?   1
 
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