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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 ?    9 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
 
Questions :- HR- Q.1 about yourself & family background ? Q.2 Why u choose Power sector as ur carrier starting not any other sector ?? Q. 3 What think abt NTPC ? Techincal Questions:- Q.1 about Vocational Training……What u did , see the main equipments….etc Q.2 Why a transformer Noise during its running condition ? Q.3 about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ? ……..some discussion type ? Q.4 What is relation between transmission lines & Communication lines ? Q.5 Which Machine u will prefer to use at a place where flammable gases are coming out & why ? Q.6 how fault in an electric system is detected & hw protection of equipments is done ? Q.7 Why we didn’t feel electric shock in an electric train ?? Q.8 Anything u want to ask from us ?? NTPC 44
What is the safety protection? Name the protections of Transformer? HSL 1
what is the back ground of transformer working? applying voltage to primary and emf inducing in primary and secondary? how it is possible? please answer me with scientific approach?   5
How does a diesel generator works?   1
types of motors suitable for escalators with reason   1
WHY WE USE SIEMENS plC   3
what is cogging and crawling Bharat-Bijlee 15
how to test vector groups in transformer differential relay.   1
Can any body describe me why a soft starter is used for 6.6kv induction motor instead of VFD ? CAIRN 1
what is idmt relay   1
how to 2 phase supply from 3 phase   1
why current increases when voltage decreases in ac system   10
 
For more Electrical Engineering Interview Questions Click Here 
 
 
 
 
 


   
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