Answer / jagjeet singh solanki

power transformer is used at generating station and its rating is above 200kva but distribution transformer is used in distribution system to step down the transmisson voltage to distribution voltage and its rating is about 200kva it is kept in operation all the 24 hours a day whether they are carring any load or not.

Hi, We have have the major losses between BBT ( Bus Bar Trunking) to LT Incomer & LT to HT incomer, how to arrive the losses?

1 Answers  

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15 kva dg set single phase takes 63amp( approximate) while same rating 15kva three phase takes 35amp approximate. why ? and what will be per phase current for 15 kva

2 Answers   TVI,

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any body,pls tell me how to done relay coordination ? how to coordinate by TCC curve?how to read the tcc curve?

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What is the function of restraining coil in differential relay? as well as restraining current?

8 Answers   Medical, Siemens,

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What is precision of a measurement?

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in transformers for ex. 100mva and 400kv the secondary current is about 420 amps but for selection of bushing the capacity of selected bushing is 2000A why there is such big difference ?

2 Answers   ABB,

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A FIELD MAGNET IS EXITED BY AC/DC?

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How to determine the Power factor is Leading,Lagging & Unity ?.I don'thave any Meters.

3 Answers  

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how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you

0 Answers  

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how to calculate busbar size? if ex:1000amps i need to calculate busbar size and what size of bar?if any example caculation pls give the formulas.

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1.Difference between vcb and Acb and partes. 2.Difference between STS and ATS.

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Can run 11KV(5MW) slip ring motor by appling 415V? if Yes and what are the processors?

2 Answers  

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