Answer / pawan

by change the connection of the trasformer

Answer / k.m.mustafa

it can if we use secondary
winding as primary windings
it will work as step up
transformer.

in 1-phase 230v,how in 3-phase 440v. in each phase in between 230v.

0 Answers  

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WHAT ARE THE EFFECTS OF SERIES RESONANCE AND PARALLEL RESONANCE ON THE CIRCUITS PARAMETERS?

0 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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how can testing using megger?

1 Answers  

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What is the knee point of voltage of CT?

5 Answers   NTPC,

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I have recently seen a transformer which had two primary terminals and was connected between two lines,i would like to know what kind of transformer is it?short discription about it,any advantages,purpose of usage of the same.............

8 Answers  

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what is auto transformer?

4 Answers  

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WHAT IS REACTIVE POWER?

2 Answers  

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What is deference between MCB & MCCB & ISOLATOR

0 Answers   Prakash Industries, Standard Chartered,

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what type of insulation is used for over head lines?

4 Answers   NTPC, WS,

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What is the formula to find out two phase active & reactive power

0 Answers   Areva,

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how many BUSBAR is in electrical system?

3 Answers  

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