Answer Posted / 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 |
Post New Answer View All Answers
A 100KVA SINGLE PHASE TRANSFORMER 10000/200V,50HZ REQUIRES 300V AT HV SIDE TO CIRCULATE FULL LOAD CURRENT WITH LV SHORT CIRCUITED.THE INTAKE IS 1000W.THE % OF REGULATION ON FULL LOAD AT 0.8 PF LAGGING WILL BE HOW MUCH AND THE SECONDARY TERMINAL VOLTAGE ON 0.8 PF LEADING WILL BE
Between educational qualification and practical work experience, give us a brief explanation on your practical experience in your past Endeavour that you performed well to the satisfaction of your past or present employer?
What are the protections for safe running of electric generator?
I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?
Dear all i am kumaravel. now in chennai. my work is control and relay panel auto cad designing.up to 11kv to 400kv then question is i am improving my knowledge. i want some books name and auther are available for this C&R panel related. plese any one help me
In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?
WHAT IS SPEC OF CLEANROOM MOTOR AND LIGHT FITTINGS?
what type of questions are asked and howmwny questions belong this catagory?
What is state space method ? Why its used ? Can it applicable on linear, non-linear, 1st order, higher order, homogeneous, non-homogeneous, open-loop , closed loops , stable & unstable systems ?
why chock were used in old tubelights but are not newest tubelights?
If oil and air can withstand a high MeV when used as an insulator in a transformer, what are the values of how high for each material?
Classify milling machines.
What is lc oscillator?
How to do maintenance of transformer feeder.
WHAT IS THE WINDING PROCEDURE OF ELECTRICAL MOTOR