Interested to Buy Any Domain ? << Click Here >> for more details...
Why DC excitation is used for alternators? Why cant it be AC?
- 35 Answers
- 77143 Views
- ABB, Ace Info, Alstom, Shalivahana Power, I also Faced
- E-Mail Answers
Answer Posted / krish
The basic requirement of an alternator is considered to be
as a sine wave generator. for getting pure sine wave, the
excitation to be of DC with low ripple factor.
in commercial generators, pure sine wave cannot be achived,
because of the core property of the material.
The excitation can of AC too. If we provide ac excitation,
the armature reaction will be more, and there by more core
loss, leads to heating up of core materials.The harmonics
disturbance also having consider effect in the power loss.
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
what is the control circuit for operating the clean room air shower
Why i receive the GCU fault in my DG Sychronization panel . what all the factors considered for this fault .
What is the rating of circuit breaker needed for 300 KVA load in 33 KV supply line in a transformer of 33 KV / 415 Volt ?
why the name trunking bus PT
LET ME NOW MORE ABOUT icu and ics for circuit breaker. how we calculate the rating of circuit breaker and i c u and ics values
Why power genaration in India is at 50HZ while America its 60HZ
why need to be maintain power factor for industrial customer?
ROC converges if poles and zeros lie inside a. Origion b. Z=1
The power supplied to a 50mH inductor from a 120V, 60Hz source will be
Define relative stability.
CAN CU XLPE/PVC CABLE BE USED INPLACE OF LOW NOISE SCREENED CABLE? KINDLY GIVE REASONS
wat is d diffr btw shunt coil and trip coil in VCB?
how to calculate the settings for shaft ct protn in hydro generators
How we can calculate the life of Lead acid battery
Why CBCT rating is 50/1A
