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 Electrical Engineering  |  Question 195 of 229    Print  
LV Switchgear
Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? which one is popular in Indian Market and why?
2) Define SCPD. What is type2 co-odination?
3) Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases?
4) If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?


  
Total Answers and Comments: 1 Last Update: July 18, 2009     Asked by: jayashreeraut 
  
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July 18, 2009 02:44:56   #1  
ritesh1981 Member Since: July 2009   Contribution: 4    
RE: LV Switchgear

For Short circuit fault SFU is popular but now days In Indian market due to reduced rate MCCB with Earth leakage are mostly used as these are automatic and faster.


 
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Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? which one is popular in Indian Market and why? 2) Define SCPD. What is type2 co-odination? 3) 
Latest Answer : For Short circuit fault, SFU is popular, but now days, In Indian market due to reduced rate MCCB with Earth leakage are mostly used as these are automatic and faster.  ...

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