Answer / k.prakashchandra

You can apply only single or two phase supply to the field
and there will be induced voltage in armature like a
transformer.The dc supply is given to create north and south
magnetic poles in the field.

What will happen when we will connect lamp in between phase and earth. 

3 Answers  

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We have 250 KVAR cacitor bank & our average load is 200kva but our power factor is average 0.66 how can we maintane it? how can we balance our load?

4 Answers  

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How can we convert the motor to generator and also generator to motor

2 Answers   Aesco,

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A cylindrical wire is compressed in length by 10%. The percentage decrease in the resistance will be?????

8 Answers  

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how one can know the charging time, discharging time of a 12 VDC battery ? If i have a battery of 12 VDC , 4.0 AH , how long will it take to charge from a charger (power supply) of input 220 V , Output 15 V and output current of 3000 mA and how long will it take to discharge whether using or not ? How much backup will it give ?

1 Answers   ONGC,

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how to select cable size according to ampere.

1 Answers  

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If u have Powergrid model question papers Please send to below mail ID rajutheprince@gmail.com

0 Answers  

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what will be efficient rating of ac motor to lift a 10 kg wt of stone to 10 meter height with input 220V AC 50 Hz frequency???

1 Answers  

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why do we have another cartridge filled with oil fitted at the bottom silica gel cartridge in power transforers

1 Answers  

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In simply words(not explain any formula )what do you mean by power factor.?

5 Answers   DRDO,

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What is the maximum advisable distance where it is required to interconnect a 500 KVA 480 V 3 ph transformer and the main panel or MCC ignoring the voltage droop affectation, does it is exist any standard about it?

2 Answers  

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state types of reflectors in illumination engg. ???????

0 Answers  

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