Answer Posted / kyu kyu win
1 ) to supply the stable Voltage output
2 ) to standby or backup protection .
Like mother look after her child
Mother = Battery Charger , Child = the whole control,
Metering and Backup
3 ) AC have frequency problem ( changes )
4 ) DC have not.
| Is This Answer Correct ? | 2 Yes | 9 No |
Post New Answer View All Answers
direction of tarbine& genrator
Mention the methods for starting an induction motor?
What happens if the Capacitive Voltage Transformer Primary neutral is not earthed. There is a CVT between Transformer and source, and the CVT neutral of the transformer is not earthed, does it effect the transformer while charging or does it effect the transformer charging process.
what kelvin's law ?
what are the factors to be considered while design the breaker either HT or LT??
why EMF IS INDUCED IN A CONDUCTOR WHEN FLUX LINKING WITH IT CHANGES ACCORDING TO FARADAYS LAW.
Why 11kv to be generated in generation station
What magnetic circuit is formed in berry-type constructions and why?
How to distinguish whether MCB is DC or AC looking at it physically
What are the main advantages of bode plot?
how to find motors H.P. whout any rating? (only give you a motor and multimeter)
What are the various types of BUSBAR Schemes? explain each
234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,
what is inverter and converter
what are the preventive maintanance actions taken for air circuit breaker? please answer me