Why dc supply is used for closing and tripping coil of ht
breakers. What happen if we use only ups ac supply only.
Answer Posted / jp gupta
why can check Ignitor thas its ok or not
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What should be the values of settling time, peak time, steady state error, overshoot, rise time, MPOS (Maximum percent over shoot) to keep the system in transient state, to keep the system in steady state ?
what is the calculation method to design core and winding of a 200kva 3phase distribution transformer?
What do you mean by the zone of protection?
how synchronous condenser is used in place of synchronous generator with out negotiating IEEE standards? Can i use 3 generators as synchronous generators and 2 generators as a synchronous condensers in an IEEE 14 bus system with out disturbing the standards?
How much load can be taken for chiller from 1500 kva transformer
How can we calculate the efficiency of a Running (On-Load) Motor ? What parameters are required and what is the method ?
how to calculate the fault in substation
if a.c supply is given to the motor,, what happen?
how can we change the polarity of Alternating current rapidly? how frequency of ac can be controlled and changed easily?
we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan
For a spring controlled governer the relation F = ar+b (F is the controlling force, r is the radius of rotation a and b are constants), indicates that the governer is
If a surge divertor is required to be protected by 32 amp C Curve Circuit breaker does this limit the amount of protection from surges that you will acheive
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?
What should be the magnetic balance test values for a 3 phase delta/star connected single primary dual secondary winding transformer (90 MVA / 2 X 45 MVA TRANSFORMER)
What is ST and specify its range of voltage.