Why dc voltage used to excite alternator field in stead of ac?
- 4 Answers
- 6585 Views
- I also Faced
- E-Mail Answers
Answer Posted / haytham hashim
coz dc can be controlled in awide range but cann't be
| Is This Answer Correct ? | 0 Yes | 3 No |
Post New Answer View All Answers
Sir, I have applied for the of Jr.engineer(Electrical & Electronics) & ASST. LOCO PILOT at ALL RRB BOARDS. please send me all RRB Boards solved papers in the year of 2001 tO till date. i requested send me the papers to my id as soon as possible (jet_0991@yahoo.com). (This is very urgent) Thank You,
Why it is necessary to isolate fire fighting when you are taking shutdown for lv board.
Dear All, I am new in construction company , my boss ask a question at time of interview , If we have 60MW generation and Single Power Transformer step-up we have. if CMR 50/60MVA , ONAN, ONAF respectively , is it sufficient or not ? for that much power to transfer,
Why we do 2 types of earthing on transformer (ie:)body earthing & neutral earthing , what is function. I am going to install a oo kva transformer & 380 kva dg set what should the earthing value?
What was the Dg set radiator and lube oil temperatures trip in ACB
What is the kiosk parts, about them and their functions ? If anybody have some PDFs files or details about this plz send it on tawhidfaisal@Yahoo.com
what happen if the load connected to the induction motor is taken away? the same question for synchoronous generator in synch i think that the the exitation voltage will appear on the terminal only if so plz answer me
how we can find of current direction(supply comming/out going direction) when a transmission line passing through sides.
what is servo motor and how to work it.
What does the term power factor shows?
explain all the classes with example
Is potential difference materials property ..? if yes tnen how.. explain brifly.
In constant power region of 3-phase IM torque-speed characteristics, if frequency increases slip A does not alter B decreases C increases D none of above
draw a circuit diagram connecting transformer OLTC- RTCC- VCB-Marshalling Box otherwise Explain in words
How to calculate impedance volt in Transformer?
