- two pumps must work with them at the same time but if the first pump start the second pump  must delayed for some time to start  also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it

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Transformer cores are laminated in order to A simplify its construction B minimize eddy current loss C reduce cost D reduce hysterisis loss

0 Answers  

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(1)Can earth and be conected together (2) what is the diferent between earth & neutral

0 Answers   VACC,

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why we test the core balance of the transformer?

1 Answers   Siemens,

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According to ohms law voltage proportional to current, then why should current rating is low with high voltage rating in transformer?

5 Answers   KEC,

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what is transformer

7 Answers   Hofincons,

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WHICH SUPPLY IS BETTER FOR 4 MW LOAD. 1)TO TAKE NEARER AVAILABLE 11 KV SUPPLY OR 2)TO TAKE 33 KV SUPPLY WHICH IS AVAILABLE AT 10 KM DISTANCE BY INVESTING NEARLY 50-60 LACKHS

1 Answers  

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Why i receive the GCU fault in my DG Sychronization panel . what all the factors considered for this fault .

0 Answers  

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What is the recommended voltage gap between Live and Earth and ,Earth and Neutral.If these are exceded what is the solution.

2 Answers  

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What are the factors to be considered during the Synchronization?

3 Answers  

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how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size

0 Answers   Tyco,

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Can i replace Earth leakage relay to the faulty Earth Faulty Relay

0 Answers  

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