why dc supply is given for excitation of ac alternator?how
dc can produce flux?
- 5 Answers
- 6373 Views
- I also Faced
- E-Mail Answers
Answer Posted / coolsunil56
dc excitation is given to rotor so that it gets magnetised and gets locked with magnetic revolving field of statorand start rotating with same speed means at synchronous speed.
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
When a single pase capacitor run motor- run on 230vac and Case(1)run with 8 Mfd 250 vac.capacitor , Case( 2) run with 8 Mfd 400vac capacitor. What is difference between both case regarding power ,efficiency etc?
3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........
What is the role of power pack in substation protection system?
Can u Explain about the electronic trivector meter and the use of data converters in them?
hi every body i am master student in control engineering and my project is slip control in trains i assumed a Dc motore as traction motor but i don't have characteristics of this kind of motor that is used in train. i want from every body if he or she has the characteristics or information about Dc motor that is used in train give me those information or technical characteristics .
what will be the min and max voltage flow from neutral to earth?
why ten delta testing is carried out on power transformer
How to minimize the eddy current losses?
what are the possible reaons & remedies if resistance of NGR getting heat up
How to design a Unit auxiliary transformer for a power house having a unit of 65 MW and Generating voltage of 11 KV and Secondary voltage of 433V
how to calculate distance between busbar supporters for LT panel, what are the factors influencing in this design
how power trnafor from 1 point to another point in bus bar ya transmission line( voltage trnasfer from 1 point to another poin)
I HAVE A INCOMING 100A MCCB TPN 25KA, CABLE LENGHT OF 80M 70MM CABLE SIZE FROM MAIN SUBBOARD TO NEW DB.BASE ON THE FAULT LEVEL SETTING OF 45KA.I WOULD LIKE TO FIND OUT 25KA ENOUGH KA. APPRECIATE IF SOMEBODY CAN ASSIST ME WITH FORMULA FOR THIS. FRM: JEFF
detailed procedure how we calculate cost for pcc m10 and rcc m20 including centering and labour excluding steel/ iron
how can we design robots
