why dc supply given to ac alternator rotor

Answer Posted / veeru

the dynamical induced emf needs a constant flux i.e time
invarient flux
if we give the ac input it produces alternating flux in the
rotar field and then there is no emf is induced so the
electrical power will be zero

Is This Answer Correct ?    3 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is the difference between capacitive and resistive voltage divider?

2923


what is the Earth Voltages in Power Plants, Sub-stations, Industries, Residential & Commercial Buildings.

1658


what is (+) and (-) in generator field detector stand for?

1388


what is the use of permanent magnet generator in exciter

1703


How to know about the rating(voltage and other) of induction motor if its name plate is missing at the manufacturing site.

2882






what is the purpose of bypass mode in energy lighting transformer?

2063


how we decide scurt (disc) of insulator with respect to kv rating

2921


what reactive how to maintain

1407


how to calculate energy of 3-phase motor?

1561


How much earthing frequency is capable?

1582


what is high and low cut off voltage of BB and DG at SPS????????

1007


How much ph is maintained of water electrolyte which is used in LRS for 1200 kw slipring induction motor ?

1258


Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks

3423


why actual valve timing diagram is different than ideal valve timing digram of a 4 stroke engine?

5059


What are all present producing cost of Per KWH of various Fuel?

2123