How to calculate % Impedence?
Answers were Sorted based on User's Feedback
Answer / salahudeen
itis the ratio of for a given supply voltage the full load
current flowing though the secondary wdg when secondary is
short circuited.
EXAMPLE Given 100v the current is 5 A then 100/5=20
then pERcent=0.02
why this value?
it ios a crucial factor determining the current carrying
capacity of the protection/switch gear of the transformer
N/w
ie suppose rated current is 7 A then switvh gear capacity
=7+0.02(7)=7.15 A
Is This Answer Correct ? | 3 Yes | 0 No |
IT IS THE RATIO OF THE VOLTAGE DROP IN AN IMPEDANCE WHEN
FULL LOAD CURRENT IS FLOWING IN IT TO THE BASE VOLTAGE OF
THE SYSTEM.
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / somnath sharma
I think there is no difference in percentage impedance and p.u impedance except the basic one that is % impedance in calculated in per 100 while the p.u is calculated in per unit.
So if u simply multiply the value of p.u impedance with the 100, u will % impedance. I hope u must be knowing how to calculate p.u.
Is This Answer Correct ? | 4 Yes | 3 No |
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