Answer / bibhu

DC power = VI
AC Power = VI X PF

Answer / mrudang

in DC POWER , the PF not comes in
in ac pf is important

Answer / ramanjaneyulu

for dc power P=V*I
ac power P=V*I*power factor

Ns=120f/p. what is 120?

10 Answers   IAR, L&T, Ramada, Toshiba,

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how will i find Transformer rating if supply voltage is 11k.v and how will i find incomer if transformer rating is 12MVA

3 Answers  

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What are the commonly used schemes for the bus zone protection?

0 Answers  

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If there is volagte between earth and neutral, what should be the reason ? and solution * What should be allowable limit in case, if the voltage between earth and neutral exist ? / OR what is limit for safe voltage between earth and neutral?

3 Answers  

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why our power production in multiple of 11, in strictlly asking why our o/p voltage of alternators is 11kv only and whynot graterthan 15 and016KV?

4 Answers  

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what is the use of the puls transformer in UPS & how it works???????????

0 Answers  

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1.what is surge used in power system 2.what is switching used in power system 3.what is lightning used in power system

1 Answers   Areva,

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what is the function of breather in a transformer

29 Answers   Areva, Bhel, RKM Powergen, Vijai Electricals,

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What is the reasonable voltage between Neutral & Earth of an electrical system for good earthing?

6 Answers   HAL,

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what are the reasons of low voltage during start the DG?

1 Answers   Godrej, Tata Power,

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how can we judge the percentage of load on the basis of temperature differences readings between WTI and OTI in a transformer

1 Answers   Toshiba,

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please write motor, transformer, Generator setting, fault level calculation of Tr.etc

0 Answers  

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