Interested to Buy Any Domain ? << Click Here >> for more details...
why transformer impedance measure in % (percentage)
- 4 Answers
- 8906 Views
- Hindalco, I also Faced
- E-Mail Answers
Answer Posted / 7anoter4
Usually group of transformers presents the same short-
circuit reactance in %
For instance, for S[ rated power] up to 2500 [to 3000] kVA
the percent reactance will be vk%=4-8. Ohmically calculated
reactance will be V^2/S*vk%/100 [ V=rated voltage].
For V=10 kV and vk%=6 for S=500 kVA Xk=10^2/0.5*6/100=12
ohm
For V=6 kV and vk%=6 for S=3000 kVA Xk=6^2/3*6/100=0.72 ohm
As one could see it is more convenient to consider only
vk% instead of ohmic reactance
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
I have 4 busbar of 1000 ampere. we use 4 busbar to make 4000 ampere in one phase.my problem is that when we applied 60% load on that then busbar produced high noise.what is the reason of that and how can i minimize that noise.
DESCRIBE THE CONSTRUCTION ANDOPERATION OF BELT CONVEYORS AND SCR CONVEYORS , DRAW NEAT SKETCHES
sir, i am 3 years diploma course pass out candidate.what type of certificate can i got in marine service.
What are diffrent type of road taxes?
Incoming line 11kv And transformer capacity is 2500kva. Consumption load is 1300A. Then fuse capacity is 11kv line.
explain with diagram how to protect transformers and substations from over current with help of CT's?
Dear sir, I completed DECE In the year 1995.Now i am working in a private company from last 10 years as an Electrical supervisor.The company having a 1000 KVA transformer.Now i try to apply "C" Licence. I am eligible or not.If not eligible,pls give solution.
There is air in a room . the top and bottom of the room are at constant temp. T1 and T2. DRAW THE temp profiles if a. T1 greater than T2 b. T1 less than T2
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 DEGREE OF COMPOUNDING IN D.C MACHINE MEANS? HOW TO READ THE OPERATING CHART FOR ANY ELECTRICAL MACHINES?
Why saturation region slowly shifted in the left side?
3phase cable calculation formula by motor load
Explain how you decide what size of electrical wire do you need?
what is rating boiler
Differentiate between ideal and non-ideal voltage sources?
