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Question
what factors to needed while selecting a MCB and MCCB
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
while selecting the MCB u have to check:
1) Current Rating.
2) Response Time.
3) Manufacturer.
4) Type of MCB (mens single pole,double pole, three pole,
four pole). depends on application.
5) Cost.
 
Is This Answer Correct ?    17 Yes 0 No
Vikramsenareddy
 
Answer
# 2
in addition to the above point below factors also taken
into account.
1. short circuit breaking capacity.
 
Is This Answer Correct ?    14 Yes 0 No
Dnyaneshwar
 
 
 
Answer
# 3
in addition to the above point below factors also taken
into account.
time delay.
short circuit breaking capacity.
frequency
temperature response.
 
Is This Answer Correct ?    5 Yes 0 No
Roushan.eee
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
in india are trains run by DC or AC? if DC , from where it receives negative potential? because pentograph receives singe potential only? Gate 1
how to select cable size?   7
why ac ratings are in tons?   2
what is neutral grounding? why is it required? what is neutral grounding resistor and how is its value calculated??   10
What are the solutions for avioding sulfide formation at bimetalic (Copper &Aluminium)overhead joints? HAL 2
why is corona loss greater in a stranded conductor as compared to a solid conductor ?   2
In a 11kv/433v transformer,at the LT side ie 433 V side why do we need to put 3.5 core Cable upto Panel.The full load rated Amps is 666 at LV side.What value of current will flow through the Nuetral Conductor.Why can't we use 4Core Cable instea of that?   2
if current required for triggering thyristor at -30 degrees(temp) is 80 mA, what is the current required at 60 degrees   1
what will happen if the secondary of current transformer kept open....   11
when a cunductor is being disconnected from live cct, still it showing charged, if its checked by line tester? GEB 8
what is ring main unit(Rmu)? what is its function   1
which type of material is used to transformer laminated core?   5
 
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