if we want ot select cable size with reference to load current it take than what is the formula and it is same for aluminium or copper?

3 Answers  

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Why indicated only R.Y.B to phase.

6 Answers   Bhel,

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What is the function of NER and NET?

0 Answers   Asian Paints, GHH RAND,

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Why HT motor is connected in Star?

3 Answers   Equate,

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I am in last year of Engineering.I want to apply for ONGC on GATE based score.They require Certificate of Competency as Electrical Supervisor.How can i get this certificate so I can apply for AEE(ELECTRICAL) in 2016

1 Answers   ONGC,

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why is efficiency of transformer more than that of other rotating machines?

1 Answers  

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IN MY INDUSTRIES 125 HP MOTOR USED FOR THAT ONLOAD AMPS UP TO 280 SO CAN I USE ONE LOWER KVA DG SET WITH STEP UP TRANSFORMERS THAT MEANS WITH LOW POWER INPUT TO GET CONSTANT HIGH POWER OUTPUT EG:125KVA DG SET = 250 KVA STEP UP TRANSFORMERS

1 Answers  

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what is the use of pmg in exciter?

3 Answers  

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What is CCM in Electrical ? where can we use this material?

0 Answers  

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I have 12MW gas engine based power plant its running parallel with grid. my problem is When cpp run in island mode(without geb) that time geb transformer power factor is 0.2 lagging. When cpp run with parallel that time power factor is 0.94 lagging So how can i maintain power factor ofgeb transformer in island mode 0.9 lagging?

1 Answers   SPCL,

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Can the efficiency of transformer be measured with the help of wattmeter readings taken at primary and secondary side? Support the answer.

2 Answers  

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We have three phase dg of 12kva rating.If the load of each phase is not constant.That means one phase drowning more load than remaining two phase..Then what will happen to dg?

1 Answers   Indotech,

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