Answer / sunil dutt

dc has uniform continous magnetic field while the ac has alternating magnetic field .so we use dc .as u know most of electrical hiost crane dc supply is used for above said reason
sunil dutt.09416468290

Answer / mamun

the dc source can be found easily and also the dc voltage is
not fluctuate from battery, so the machine can start normally.

if voltage in transmission line more than current will be more or less,if less what about the Ohm's law

2 Answers  

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explain why tap changer is always connected to high voltage winding side of the transformer.

10 Answers   IOCL, UPPCL,

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Why 268hp induction motor taking different current in three different phases? (In which two phase having same current and one having higher value compare to other 2 phases.)

1 Answers  

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what is function of INVERTER

4 Answers  

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WHAT IS MEANING OF Gg & Gg IN hrc FUSE

0 Answers  

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What shall be the secondary output voltage if the primary winding of a 220/6V, 50 Hz transformer is energized by an 110V, 60 Hz supply?

0 Answers   HPCL,

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what is proper capacitor placement? How to evaluate capacitor size?

0 Answers   CPCL,

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how much mininmum length required to conduct a DC Hipot Test on 33kV AC Cable with 45kV DC? Is it 20meter or Less then 20?

0 Answers   ABB,

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say a transformer is designed for 33/11kv step down with ratio 0.33 for load 1 mva. if am giving 11kv as a input that same transformer what will happen to its o/p voltage. and whether it can be operated for 500kva

4 Answers  

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1-What is the difference between absorption factor and polarization factor in insulation resistance test in transformers? and why we inject until ten minutes to get polarization factor?

1 Answers  

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in fuel level controller what is MOV please define.

2 Answers  

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in 3 phase (4 wire) star connection - is current pass through neutral??

7 Answers  

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