why only dc is given as excitation...why not ac???
Answer Posted / manikumar agcet
If excitation is dc then it is
easy to vary output voltage&
powerfactor.
Is This Answer Correct ? | 5 Yes | 3 No |
Post New Answer View All Answers
please give me solution to rectify the emi(electromagnetic interference)
iam preparing for rrb section engineer post in electrical branch.suggest the right textbook for my reference.fromwhere i will get the previous q.papers?
Is it true that in the 3 phase transformer, the limbs of the core are at 45 dgrees to each other. if true, why?
We have 110Vac ,10A ac supply which is converted into 110VDC & How much DC current? which factor is reqired for dc current calulation?
In case of generator when we consume more power produces by it why load on generator increase and starts sound more. and how it is adjusted..
what is laser diodes?
what is magnetizing and demagnetizing current in generator and motor?
what is Insulation monitoring device. where it is used? (in switchgear room or control panel or in field equipment)
What is bridge rectifier and explain with details
How to calculate cable rating for 3 phase supply?
what r the safety measures in UPS ? explain all?
Why do we avoid electrical conduits in floors at apartments?
what is the maintaining Cf in UPS.
How can i calculate the Breaking capacity of molded case circuit breaker, is the breaking capacity of CB for Diesel generator shall be less than grid supply's breaker ?
the typical output of a solar cell is........