Answer / subra

Operating voltage primary = 33KV
operating voltage secondary= 400v/230v
capacity of the transformer=?
tap changer =Online or off line
transformer oil cooling sys ONAN or ONAF
vector group=?
Indoor or oudoor tranformer
these are the details to collected

funtion of choke

4 Answers   L&T,

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How would you supply power to a village which is very far from a sub-station and has only a 11k?

4 Answers   Power Grid,

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Need help. 3 phase system. Neutral line arced and melted upon connection of connector with 3 phase power. Why would that happen?

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Is it possible we are step down 11 kv to 230v ?

2 Answers   Fedco,

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why we don't discuss power facter in dc?

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How to calculate Busbar Thickness for Different type of HT/LT panels

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in elevator industries , how to calculate the required KVA for the elevator (elevator spec- 40A module , motor of 13.5KW, 20A)

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Sir,In our company there are 3 caterpillar make(capacity:(1) 3.3KV,2.5MW(2)3.3KV,2.5MW & (3)3.3KV,1.9MW) & 1 deutz make (capacity:11KV,3.8MW)gas engines utilised,all are running in paralell. There are three transformer utilised,(1) 6.25MVA,3.3KV/22KV,Impedence voltage:6.7% used for two generator,both are 2.5MW(2)5.5MVA,3.3KV/22KV,Impedence voltage:7.2% used for one generator of 2.5MW & (3) 5.5MVA,11KV/22KV,Impedence voltage:7.8% used for one generator of 2.5MW.all generator breakers capacity of 1250Amps. Sir,I want the details of fault level calculation of generator,transformer individually & for whole system. If you require any information from me.feel free for contact me sir.pl.send the answer of my question as the earliest as possible.

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electrical knowelge

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is it necessarry to charge the battery of ups always??

3 Answers  

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at present how many 765 kv lines are there in india?

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CAN U PLEASE TELL ME SOME G.D TOPICS FOR APGENCO INTERVIEW&G.D

0 Answers  

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