What are the different methods for calculating Short
Circuit Curren?
Answers were Sorted based on User's Feedback
Answer / gunasekaran
rated KV*percentage impedance we can get impedance voltage.
then applied voltage*rated current/rated impedance voltage
for example
) Power transformer, 33/11KV, 5MVA, 87. 5A/262.5A
Z = 6.81% at principal tap, mains voltage : 372V
6.81% of 33KV = (33000 x 6.81/100) = 2247.3V
2247.3V will deliver rated current of 87.5A on
short circuit.
372V will deliver a short circuit current of (372 x
87.5 / 2247.3) = 14.48A
At principal tap, short circuit current on HV side
= 14.48A.
Short circuit current on LV side = (14.48 x
33/11) = 43.45A
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / harshita
short circuit is caused by connecting a small wire between
ends of positive and negative terminals
| Is This Answer Correct ? | 2 Yes | 2 No |
Answer / moti rgpv
SHORT CIRCUIT CURRENT IS DEPEND UPON TYPE OF FAULT OCCURE.
BY DESIGN EQUIVELENT CKT OF PERTICULAR FAULT.
WE CAN GET SC CURRENT
| Is This Answer Correct ? | 1 Yes | 3 No |
Is any AC drive(VFD) had a feature of DC injection braking? if available please mention the detail. i.e drive can supply braking torque when the motor in idle state.
in our transmisison sub station why we step down firstly 132kv\33kv then 33kv to 11kv. can we direct step down 132kv to 11kv.
which book to refer in electrical engineering for iocl exam & which book for general english.
what is the maximum rating(KVA) of transformer can be used in distribution side..(11KV/440v) and why??
if a number of plc s are there then how many modbus to be used
How to calculate cable size in sq units based on motor rating is KW
What are gain margin and phase margin?
What will be the current if the resistance total in a series circuit doubles?
what is the diff. b/w restricted earth fault relay & standby earthfault relay and where they are used?
4 Answers KSK Energy, Reliance,
what is motor
how to calculate the slowness and fastness of energy meter if we have different kw load for example (0.746 kw and meter rev constant 400 and we calculate the 2 rev in 30 sec) please explain the formula thanks
1 Answers WAPDA Water and Power Development Authority,
I am an electrical engineer, I found variation in KWH between DG and EB for Same load for same duration, can any one help me why this variation arises?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)