for testing busbar (33kv) hi-pot .whether we can apply DC r not.and what is the test volt for that .explain

4 Answers   WGPSN,

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How we find the size of cable if we know the current

2 Answers   Gemscab,

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WHY THAT THREE COLORS CHOOSEN IN 3 PHASE? WHAT IS MEAN BY RYB?

2 Answers  

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A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?

0 Answers   L&T,

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why do you want leave the company

2 Answers  

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what is power frequency withstand and impulse withstand of a circuit breaker?

2 Answers   Power Grid,

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What is the loss of transformer of 220kv/11kv, 63/80 MVA and 18.05% impedance

0 Answers  

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what is the load amp for 1 HP 3 phase Motor ?

15 Answers  

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In Dyn11 power transformer if any one of the 3 phases connected to earth in star connected side then please explain effect of the current flow in delta connected side of transformer.(In this case if one phase is shorted to ground in star connected side then we observe the current flow in two phases only not three phases in delta connected primary side. Please explain why it is so?)

0 Answers  

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for flour light (garden light) how much deep need to put 222ov 0

1 Answers   Anantara Hotels,

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How the flights will be fly be fly without ground connection under raining with thunder lighting?

1 Answers  

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what kinds of Transformer oil grade is better for power transformer ?

0 Answers   KSRM Steel Plant,

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