Why DC excitation is used for alternators? Why cant it be AC?
Answer Posted / xengso0nax
alternator is sync. machine which not self start,so we need
dc excitation to get const field
| Is This Answer Correct ? | 9 Yes | 66 No |
Post New Answer View All Answers
What is the power factor of a transformer at no load?
how did i get the competency certificate as electricle supervisor. iam completed my b.tech.but i dnt have any experince, this certificate is required for applyng ongc mangement trainees. what should i do sir please suggested me
state the working of discharge lamp?
briefly explain the main blocks found in a microprocessor based system
i've iocl interview.. if you know the interview process please give me information..
A parallel flow heat exchanger will perform better than a counter flow heat exchanger. State if the statement is true or false.
How to calculate capacitor bank size at a load 800kVA.
3 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. Draw the individual and combined impedance diagrams to a base of 10 kVA. Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.
how do you test tachos and servos
nwhat are the main Components of servo motor?
Briefly describe your ideal job?
What should be the voltage between Neutral and Ground in secondary side of the step down transformer (230 V to 110 V) with no load condition?
In motors how many types of cooling systems were used?
how the B-H loop obtain under the static condition
How many Zones can be in Conventional type fire alarm system & how can we detect the fire in Conv. type FAS?