Answer / s.k.

For power TR's : 15,20,30,45,75 MVA , they have 21 taps
then the 2dry wdg. should meets the required kV
so , when the tap at the lower step( tap 1), it results the
lower kV at 2dry.

Is a d.c.compound motor is use as a booster? how?

0 Answers  

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A 500 V shunt motor runs at its normal speed of 250rpm when the armature current is 200A. The resistance of the armature is 0.12 Ω. Calculate the speed when a resistance is inserted in the field reducing the shunt field to 80% of normal value and the armature current is 100A.

0 Answers   VECL,

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What are the ratings of VCB, MCB, MCCB, SF6, ACB, and OCB?

0 Answers  

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Is it possible to convert Dependent sources to its equivelent current or voltage Sources ?????

1 Answers   Zen Technologies,

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In liquid rotor starter how PH valve should be maintained.

1 Answers  

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what is the meaning of DY-11 Z-5%

1 Answers  

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what is the difference between arc and spark

2 Answers   ABB, Jindal,

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in transformer input is d.c signal which type of emf is induced

1 Answers  

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why there is no current in the rotor body althrough the flux linking with it also get changes. why current only flows in windinds not in rotor

1 Answers   Vedanta,

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Why in celling fan stator are rotatig while rotor are steday

6 Answers  

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what is maintenance?how to explain

0 Answers  

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are induction motor have poles? yes / no , why?

3 Answers  

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