Answer / ckm

electrical power consumed by any device is the product of current carried by it and voltage arcoss it.......or...rate of change of electrical energy per unit time...................electrical energy is the product of power consumed and time

Answer / varaprasad inavilli

power is the product of voltage,currnet and power factor(in AC system)

power is the product of voltage,currnet (in DC system)

How much the fault level of 11 k.v.,22 k.v., 33 k.v. (in Maharashtra- M.S.E.D.C.L) for calculation of short circuit current & selection of h.t.cable.

1 Answers  

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HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS angus_eee04@rediffmail.com,angus_eee04@yahoo.com

0 Answers  

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What is the accepted limit to increase the choosen transformer capacity over the load and why ?

2 Answers   Asec,

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Name two types of electrical analogous for mechanical system.

0 Answers  

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What is Single Phasing fault???(not single-phase fault)

6 Answers   ABB,

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Is it true that in the 3 phase transformer, the limbs of the core are at 45 dgrees to each other. if true, why?

0 Answers  

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how to minimize earth resistance upto 2Ω, if the resistance is 6 Ω ?

0 Answers  

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Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV

0 Answers   Bhel,

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Why we are going for converter transformers for DC drives application instead of distribution transformer?

0 Answers  

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Why the airgap of an induction motor is less compared to that of a synchronous machine?

4 Answers   MGVCL, RRB, WebTech,

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When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number

0 Answers   TATA,

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difference between alternator & GENERATOR

4 Answers  

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