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Question
what is difference between ELCB, RCBO & MCB
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
ELCB mean earth leakage circuit breaker,and it is the old
name of RCCB(Residual current circuit breaker, further ELCB
is voltage depended operation and RCCB is current depended
phenomena.and MCB is miniature circuit breaker which is
operated on thermal or magmatic effect of current.
 
Is This Answer Correct ?    34 Yes 6 No
Farhan Hashmat
 
Answer
# 2
ELCB 
Is This Answer Correct ?    5 Yes 10 No
Guest
 
 
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
Find active & Reactive Power transmitted in a transmisston line having Vs30 degree(sending end) to Vr(zero degree)at receving end with line inductance X ohm. Vs(30degree)-------------------Vr(zero degree) X ohm   3
Basic philosophy of applying 3P tripping for uptill 132KV switchyards & for 132KV & above 1P/3P tripping is used. L&T 1
what is the difference between electrical degree n mechanical degree?   3
If we connect capacitor in series DC supply so what happened?   4
Where all & Why resistance grounding is required?   1
what is difference between megger & Contact resistance meter & its Application?   2
what is the effect when the shunt field winding is opened in dc shunt motor (i) at the time of starting ? (ii) in running condition ?   4
what is the purpose for open delta connection in potential transformer   2
What do you mean by distributed winding in alternators? how exactly is 3 phase power generated?   2
why we use 25 kv in railway .not 11kv, or 33 kv Isro 1
Can u explain : how capacitor act when the supply is given is a.c and d.c. I know that when d.c supply is given then the capacitor charges and becomes open circuited. But please say about when a.c is given. I have seen that when a.c supply is given ,it charges and discharges, But when we plug in capacitor to our daily supply and take it out ,then we join those wires spark will appear,which seems charge is present ,but when a.c is given it should charge and discharge   3
I want to know the principle of rotating flux transformer.   1
 
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