Answer Posted / nagarajan
For example 20/25MVA Power Trans -132/6.9kv
1. FLC of Secondary=2092A
2.Phase to Phase Voltage for Secondary=6.9/1.732=3.98Kv
3.NGR =3980/2092=V/I=1.90Ohms for 30sec
It is only for power transformer.
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
What is The Resistance Formula
Briefly describe means used by electricity suppliers to influence the flow of active and reactive power in power networks (one for each type)?
Why are the laminations insulated from each other?
how to compute kvar in substation feeder to improve power factor and sending voltage
Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...
What is the effect of positive feedback on the stability of the systems?
Why is remote backup preferred to local backup?
List the time domain specifications.
Do you know what is dry-out test in x'mer
I am shobana from Chennai. I am having my personal interview on 19th Dec at Chennai.kindly mail me the questions to mail id shobana.shanthi@gmail.com
what would happen if reactive power (kvar)is increased (more)or decreased (less)? how much exact reactive power should be maintained? and what should be done for that
What is the method of estamating of cable, CB,MCB ?
what mean by analog ,digital,numerical meters and relays? say the example?
what is booster? and how it is connected in a circuit?
2. Modify your design in question 1.a so that the circuit works according to the following function table X Y F 0 0 Clear 0 1 No Change 1 0 Parallel Loading 1 1 Count 3. Design a circuit that detects the pattern 010 in a serial input X considering: 3.a Overlapping 3.b No overlapping