Interested to Buy Any Domain ? << Click Here >> for more details...
In a Synchronous generator, Can AC voltage be used instead
of DC voltage in field winding of rotor to produce AC power?
- 10 Answers
- 19074 Views
- NTPC, Windia, I also Faced
- E-Mail Answers
Answer Posted / iamdon
No.....AC voltage cannt be used in field winding of rotor
of synchronous machines for following reasons....
1)AC produce poles on rotor whose strength is varying
sinusoidally.It is undesirable because the magnetic locking
between two fields in this case are not achieved troughout
the cycle.At current zero of AC there is no locking at
all.So synchronism will be lost.
2)Field winding is designed for DC. It has higher
resistance.According to Lenz law emf is induced in field
winding.so current flowing through through winding will be
very low.Pole strength is very weak.
| Is This Answer Correct ? | 30 Yes | 0 No |
Post New Answer View All Answers
The sodium vapor lamp is not glows when it is connected a distance of 5 meters above from gearbox, why ?
What are the causes for the failures of sandwich type (Al) busducts?
HOW TO TEST A LIGHTENING ARREST ER ?
I need the list of Universities who have summer intake for BS degree in Electrical Engineering.?
what is proper capacitor placement? How to evaluate capacitor size?
what is allowable ac mixing in dc
Atwhat condition reverse power relay will act?
what is static frequency converter?what is the function...of sfc...?
can a 150 kva 3 phase 440v/230V delta-wye step down transformer can be use as step up transfoermer with connected loads at 440v side?
Where I can get the sample question for post of Junior engineer electrical-II For RRB Bhubaneswar.
explain the function of brush less dc motor?
What happens if the Capacitive Voltage Transformer Primary neutral is not earthed. There is a CVT between Transformer and source, and the CVT neutral of the transformer is not earthed, does it effect the transformer while charging or does it effect the transformer charging process.
Vaccum circuit breaker
HOW TO CALCULATE THE REGULATION OF 100 AND 25 KVA TRANSFORMER
How to work meggar?
