Hydro P.P. run @ 600 rpm,8pole, Nucler P.P @ 1500rpm 4 pole ,
ThermlP.P @ 3000 rpm 2 pole.Why this diffrence??? when we can
generate electricity @ 600 rpm then Why we had incresed speed
in NPP & TPP???

Answer Posted / 7anoter4

The synchronous a.c. generator rpm[rotations per minute]
depends on the mechanical drive rated rpm –Diesel Motor
could be high speed –for 60 Hz systems up to 1800 [I did
not see 3600] and the lower limit may be 100-150 rpm.Low
speed D.G. consume per kwh is lower so for 40 years will be
a huge advantage.
The dimensions [and weight] of the motor-and of the
generator too-decrease as the speed increase [and the price
also].The turbo-generator is 2 poles generator usually as
this is the minimum equipment and installation cost.

Is This Answer Correct ?    0 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What are electric motors?

762


What is Annunciation?

1661


what is the correct method for the outdoor termination of 19/33 KV HT cable step by step?

1748


What is the difference between multimeter

1560


Initially, when the input is not equal to the output — what type of response is this?

758






Difference between Lugs and Thimbles

14301


what are the range of memory address in plc for L&T lx7 4A

1894


During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.

1549


What is the difference between grid and off- grid system??

1584


why constant voltage transformer should be start without load? and if started then what will happen?

1693


what will be the effect if you were using different brands of outlets?

1556


What is purpose of reactor?.What is different between line and bus reactor?

1575


how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.

1850


What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?

1564


Testing procedure of DG alternator stability test

1040