Answer / ali

Hi ,

My 50/60MVA ONAN/ONAF power transformers tripped at 47MW power , but no windding temp alarm or trip , no any other indication, just PRV trip, what is the reason ?

can u name the different types of motors used in different types of applications?

6 Answers   ABB, Bhel, SBQ,

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When should I use earth leakage circuit breaker for incomer and when should I use it for each feeder seperately?

1 Answers  

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single phase 230v three phase voltage 415volt why we aren't used line voltage 690v?

7 Answers   Citec,

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In a 132KV Grid Station where voltage level is 132KV, here,  why the rating of Surge arrests installed 120KV ? 

1 Answers  

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How we can calculate the capacity the Air Condition capacity? like 1 or 1.5 ton's, What is the means of volume of Ton's in capacity of Air Compressor? Why in ton's,? not any other Volume?

2 Answers  

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explain different losses in a transformer.

0 Answers  

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What is a DC series motor?

0 Answers   Ericsson,

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why the alternator rating in kva generator in kw.

2 Answers  

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Why transformer rating is represent in KVA?

7 Answers   Bhel, Sonalika, Usha Martin, Wipro,

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in india ac frequency is 50hz, but in foreign countries it is 60hz,whwt is the reason

9 Answers   SVIT,

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How many safety of Disel Generator

5 Answers   Sail,

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CONSIDER A 415V/200V STEP DOWN TRANSFORMER.CAN WE USE USE IT AS STEP UP TRANSFORMER BY GIVING 200V IN SECONDARY AND TAKING OUTPUT FROM PRIMARY?

22 Answers   L&T,

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