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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please give some hindalco placement papers for written exam

0 Answers   Hindalco,

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Why the standard of ambient teperature mentioned as 40 degree celcius in machines.

0 Answers  

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what is purpose of using reactor in substations.

20 Answers   Heavy Engineering Corporation Ltd HECL,

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DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.

0 Answers   Greenko Group,

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Which of the following are the important limitations of rod gap surge arresters? 1. They are not capable of selling off power frequency follow up current. 2. After a discharge, the rods are destroyed completely. 3. Performance is affected by climatic conditions. Use the following codes for selecting the correct answer. Codes: (a)1, 2 and 3 (b)1 and 2 (c)2 and 3 (d)1 and 3

1 Answers  

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why transformer rating is expressed in kva.

4 Answers   Electrosteel, L&T,

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what are the main parts of DG? explian thier functions?

8 Answers   Apollo Power, Tata DoCoMo, Tyco, Vizag Steel,

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Rotor is taken away from three phase induction motor and three phase supply is given to the stator.What will happen?

9 Answers  

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What is difference between MCC,PMCC,PDB?

2 Answers   Cipla, JSW,

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How to convert KW to KVA or KVAR OR kvar/kva to kw?

8 Answers  

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what is the function of Choke?

9 Answers   Airport Electrical, Cummins, Tamco,

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