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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Draw torque - speed curve and load curve of induction motor? mark operating point ?

0 Answers  

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How star and delta connections inherently eliminate triplend harmonics?

1 Answers   Blue Star,

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what should be correct gas pressures to be a 1.5 ac unite

0 Answers   DDK,

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We are getting supply at33kvand it stepdown to 11kv.So Our requirement is 11kv voltage.why we draw 33kv from the grid instead of 11kv?

2 Answers   Birla,

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Generally In transformer Tap Changer on HT side, but I have seen in 66KV side in 220/66 KV, 100 MVA, Areva make transformer. Why ?

7 Answers  

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what is the effect of power factor of machines in starting current

0 Answers  

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What is the HVDC Transmission System? What are the conditions applicable to lay an HVDC Line?

0 Answers  

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how to produsing geretor power

0 Answers  

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What is the mechanism of WTI

0 Answers   JBS,

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what happen if the supply is given to the stator of the 3phase induction motor with out assembling the rotor ?

0 Answers  

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in 50 mw generator if field is open in full load running condition what happen and for protection which relay used?

5 Answers   century,

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