Answer / navin kumar

carbon has the property to produce less spark. that's why it
is used in dc motor.

Answer / ganesh

hello ravi tannde ac motors cosist only stator winding
dc motor consist stator and rotor
1) ac motors stator take main roll
2) dc motors rotor take main roll of dc motor run
speed control ;acceleration controll, torque , smooth
run of dc motor

How much water ( Kilo Liters) a submercible pump of 35 HP can lift from Borewell of 6" and 900 feet dip.

2 Answers  

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Define rise time.

0 Answers  

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why secondary of open delta pt (two element pt) centre tap is earth what happen when this earth is removed

1 Answers   Essar,

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When we change the tap position of 10MVA transformer it suddenly tripped with Out of step indication and also with Static differential relay indication, Transformer Bucholz relay indn and Low oil level indication. Before 1 week the same problem occured by changing the tap position. but at that time only oltc bucholz relay activated. After testing the TxR Relay team & PET team cant find any solid reason. The values are ok also. So plz answer wat's the reason for this incident? anybody plz help.

3 Answers  

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prefer any good electrical engineering book.....it should be useful in the practical fied?

1 Answers  

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why voltage is low at reciving end in summer??

4 Answers   JSW,

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Dear friends , I am going attend interview for WARTSILA INDIA LIMITED , power plant .Could any 1 pls send me few questions. the area i have to concentrate? please send it to mikalraj@gmail.com. pls help me out

1 Answers  

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why does same amount of current flow in the circuit inspite of any number of resistances in the circuit?

3 Answers  

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what are the types used for alternator earthing,what will happen if more than two alternator is working in parallel with each having own system earthing.is there any possibility for circulating current in between two system.

3 Answers   BEL,

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We are dealer in Maharashtra State & We have recd. form C from dealer of Maharashtra State against our E-1 form. Now assessing authority is asking for counterfoil of our E-1 form. But, our E-1 form counterfoil is misplaced somewhere & assessing authority is disallowing the C form which is recd. from Maharashtra State.Please let us know the option for allowing C form?

1 Answers  

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What is creepage distance..... what will be the value for different voltage level

0 Answers  

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why DG sets power factor is 0.8 lagging.

1 Answers   Cummins,

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