wat will be the pressure maintained inside the transformer?

2 Answers  

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what is SMDB

6 Answers  

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how much importance of power factor in single phase. is it,s importance is quiet same as like three phase power system.

1 Answers  

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why we have and use 3 phase not 2 or 4 or other in power system?

0 Answers  

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how we select the mva rating of the circuit breakers?

1 Answers  

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following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 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?

0 Answers  

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in small capacitor we use uf( micro farad) and in big quantity we used kvar. i want to know that in 1 kva how much will b uf(micru farad).

2 Answers  

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You required 5A from the transformer but you get 8A. How do you minimize this?

2 Answers   Bajaj, Siemens,

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Any link for Electrical objective type questions ?

0 Answers  

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What are the advantages of speed control using thyrister?

6 Answers  

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According to underground cables a) stress b/w sheath & conductor is high b) inrush of core & conductor

0 Answers   CDS, Engineers India Limited, TNQ,

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DO MEGGER TEST APPLIED ON SURGE ARRESTOR? IF YES THEN WHAT ARE THE ACCEPTED R VALUE REQUIRED FOR SURGE ARRESTORS FOR VOLTAGE LEVEL 11KV, 33KV

2 Answers  

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