Answer / patel_rakesh2089@yahoo.in

power factor is the cosine angle between voltage and current.

Answer / bipin gond

the ratio of real power and the apparent power.

Answer / vishal

kw/ kva

Answer / sharad pandey

Power factor >the cosin of angle between voltage  and current in ac system is called power factor

which type of motor is used in automatic swing gate

0 Answers   Sail,

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what relation between transmission line & communication line?

1 Answers   NTPC,

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What is static Device & Mechanical device? Is transformer a static device?

5 Answers   ABB, Emco,

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how invertor convert the dc into ac give brif detail

0 Answers  

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In directional earth fault protection for generator, one core balance CT is for residual current, what other CT is for, which is placed on neutral?

2 Answers  

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what do you mean by synchronous speed of a three phase induction motor?

5 Answers   FlexPoint,

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What is the formula for calculating impedance of transformers connected parallel at fault level 50KA?

0 Answers  

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what is meant by IGBT how they differ from tyristor ?

0 Answers  

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what do you mean by cl PS CTs? What are technical details required for it's manufacturing?

1 Answers  

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1. If we apply dc supply to the primary winding of transformer it will be burnt out. similarly dc supply is given to field winding of syn. motor and armature winding of dc motor, they are safe. (Remember both windings inductive nature) what is the reason behind that?

2 Answers  

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What is difference between slip rings and carbon burushes?

2 Answers   Hyundai, IVRCL,

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how to calculate the cable size

3 Answers  

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