How can I calculate the trnaformer effciency at different loading condition?

2 Answers  

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if the power factor is .88 i want to increase the power factor to .99 what number of capacitor is to add?

3 Answers   Amway,

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why we not use capcitor in Three phase motor ??

2 Answers   GOMS, Power Electronics,

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What is meant by control system?

0 Answers  

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in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly

0 Answers   Shaifali Rolls,

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how can calculate static 3phase 4wire CT & PT operated energy meter constant when calibrating using refference meter suppose we have 11kv/110v PT and 30/5A CT, the meter constant is 160imp/kwh, where meter is showing MW energy? give me solution which constant i feed in my refference meter for calibration of energy meter?

3 Answers  

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what is ALF and ISF in current transformer?

1 Answers  

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define main transformer?

7 Answers  

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Give the expression for the frequency of oscillations in an op-amp sine wave oscillator?

0 Answers  

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Why we use a H.T. Fuse from a thick wire, on other side we use high rating of cables? & Why we use less Sq. mm Cable on H.T. side , on other side we use Large Sq. mm cable?

1 Answers  

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Selection criteria for Vector group in power / distribution transformer.

1 Answers   ABC,

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What is the Difference Between MCCB & ACB & VCB

4 Answers   ABB,

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