Why Transformer does not work in DC ?

5 Answers  

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how to distinguish between ac motor and dc motor without seeing name plate of it.only seeing its getup look

3 Answers   Nahar, Siemens,

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Sate maximum power transfer theorem?

0 Answers  

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1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor

0 Answers  

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what are types of servo motors

1 Answers  

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How can we measure the residual voltage in dc machines?

0 Answers   GPREC,

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What is the advantage of AC supply?

5 Answers   PSU,

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A cable with concentric PE conductor must be used with frequency converter circuits what does its means.?

0 Answers  

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what is the acb tripping & closing voltage.

2 Answers  

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What are the types of class b amplifier?

0 Answers  

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why magnetising curve not start with zero voltage?

0 Answers   TATA,

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we have one pumping station and 4.6 MW 7 no.s synchronous motors.so there is no required HT capacitor to improve power factor.But we have two no.s of 25 Mva power transformer connect to distribute the power for motors connect with 220 kv line.So i have required the HT capacitor to improve power factor at HT side i mean power transformer bus side.So please suggest how much HT capacitor banks required for same.

1 Answers  

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