Why DC excitation is used for alternators? Why cant it be AC?
Answer Posted / abid ali khattak
As you well known the DC is direct current which doesn't
change its direction. therfore we always using the DC
excitation for Generation due to continues induced magnatic
field for proper excitation.
Is This Answer Correct ? | 131 Yes | 43 No |
Post New Answer View All Answers
why we r not earthed Control cable of C.T. terminals
how we can calculate chiller required ampear?
how to select the double earth conductor if 21A full load?
How to size Air Circuit breaker (ACB)? What is the most important factors?
1.how many earth pits are required for 1000 k.w plant include substion , transformer ? 2. how many earth pits are required for 500kva generator.what is formula to calcute?
In radial network the source is fed from 1 end both ends at central
Differentiate between magnetic field and magnetic flux?
Incoming line 11kv And transformer capacity is 2500kva. Consumption load is 1300A. Then fuse capacity is 11kv line.
what is the reactive power what is the use of it in system
What are the different power system losses and how can it be eliminated?
What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?
what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA
Why delta star trformers are used for lighting loads?
How do i right a ladder diagram that has 1 actuator that performs a full stroke followed by a half stroke
How can you sized or estimate the ligthning arrester current rating?