Why dc voltage used to excite alternator field in stead of ac?
Answer Posted / sankaranarayanan
field flux produced by dc supply is constant where as in ac
supply will not give a constant field flux
So, alternator output will not constant.
| Is This Answer Correct ? | 4 Yes | 2 No |
Post New Answer View All Answers
importance of reactive power management
63MVA,220KV/6.9KV Transformer LV side neutral is connected to Earth pit through NGR. Whether this earth pit required to connect with near by below grouding earth mat or it is to be kept separate?
can we use trip light with bus coupler?
how brushed dc motor operating ?
'documenˁ
What are the advantages of stationary armature and rotating field system?
How to calculate no of Lighning arrestors are required for protecting 50mX 50m*20m cubical building and locations of LA?
dear all i am kumara now current working in electrical designing of control and relay panel i want learn some substaion design then any book are available. pls mention name and authour
ACB & VCB how do work and saftes and how can maintenance in this and parts name show with picture
Has someone here done a sizing for a generator (3 phase), its for a pumping station. If you have an example for standby/duty and both running (I) star delta (ii) Soft Starter.
Control cables in S's will carry 1000v which is AC R DC? Pls answer meĀ
placing earthing pit in pathway is correct or wrong??. placing earthing wireGI1/18 inside walls is correct or wrong?. explain!!!
Where servomechanism is used?
The Howland current source produces a A Unidirectional floating load current B Bidirectional single-ended load current C Unidirectional single-ended load current D Bidirectional floating load current
What are n circles?