Three phase alternators are connected in star connection
why?
Answer Posted / manish kumar
in a star connection, phase voltage Vph = VL/ (3)^1/2.
1--Since the induced emf in the primary winding of an alternator is directly proportional to the number of turns, a star connected alternator will require less number of turns than a delta connected alternator for the same voltage.
2-- it also requires less insulation bcz its phase is less.
3-- it also help to reduce third harmonic ...
Is This Answer Correct ? | 5 Yes | 4 No |
Post New Answer View All Answers
how to define tell me about self
CAN CU XLPE/PVC CABLE BE USED INPLACE OF LOW NOISE SCREENED CABLE? KINDLY GIVE REASONS
I want definition for ABT Meter (Availability Based tariff) ?
Explain the function and difference of Restricted earth fault, simple earth fault and sensitive earth fault with connection diagram.
show the single line diagram of star delta starter with single phase preventer
how to calculate the earth fault current
Where is servomechanism used?
What is the RMS and DFT principle of analogue maesurments. Which way they are advangages. where which princples give optimum results.
What is the lockout relay
what is auto re-closer?
why Lightning arrestor are made by 2 seperate stack of inslutor but why cvt are in single stack of insulator.
If rotor works in clock wise what happens
What is critical disruptive voltage?
how was your last weekend.
what's the difference between 'shaft power demand' and 'BHP' , when we consider electrical load list.