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Question
How Many safety of Air circuit breaker
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
#1 ELCB
#2 UB RELAY
#3 OVER VOLTAGE RELAY
#4 REVERSE POWER
#5 OVER CURRENT RELAY
#6 SHUNT RELAY ETC.
 
Is This Answer Correct ?    10 Yes 2 No
Harikesh Yadav
 
Answer
# 2
#1 ELCB
#2 UB RELAY
#3 OVER VOLTAGE PROTECTION
#4 UNDER VOLTAGE PROTECTION
#5 PHASE SEQUENCE
#6 EARTH FAULT PROTECTION
#7 REVERSE POWER PROTECTION
#8 OVER CURRENT RELAY
#9 SHUNT RELAY ETC.
 
Is This Answer Correct ?    6 Yes 0 No
Kedar Bhavsar
 
 
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
Can Superposition theorem be applied to AC Circuits?Can Thevenin's Theorem be applied to AC Circuit too? HCL 5
why power factor is only cosine angle not sine angle?   2
what is principle operation of transformer?   7
Can a dc motor works as a dc generator. If yes , then how?   2
why Line voltage =1.732XPhase voltage what mean by 1.732 NCC 4
can I connect step down transformer(25KvA,240V Phase to phase)to output of online UPS(15KvA,440V PHASE TO PHASE) Load connect to TRANSFORMER is 13KvA,240V PHASE TO PHASE. please brief if it is wrong DRJ-ARDE 1
How transformer neutralshould earthed ? Transformer neutral connected to earth mat in substations, right or wrong ?   4
will three phase energy meter run without one phase   2
what are the main parts of UPS what is the function of that? HCL 21
How does frequency affect KVA rating of a transformer? If a 500 kva, 400 v, 60 hz t/f is to be operated on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same Also explain why do u think like that.   3
In a star to star transformer can we use a common neutral for both star connected primary and secondary   1
types of arc quenching methodes   2
 
For more Electrical Engineering Interview Questions Click Here 
 
 
 
 
 


   
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