Between Star-Delta & Star-Star Power transformer which one
is efficent for Earth Fault?

Answer Posted / daher

star/star in case of line to ground short circuit in star -
delta transformer their is no path to I0 short circuit
current and it will turn inside the closed circuit of delta
connection

Is This Answer Correct ?    1 Yes 4 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is pd controller?

653


Define liftable weight of a transformer? Does the total weight of transformer include oil weight?

2071


what size steel armoured cable is required to support 1500kva capacity. would 70mm squared be enough or would I need 90 or 120mm squared 3c plus earth

997


why does make gain margin and phase margin on same plot.?

1641


What is signal flow graph?

661






how to i get B licence,i am completed BE electircal and electronics engineering.i want to konw the proceduure to get b licence

1191


-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.

1682


What is meant by derating factor?

677


Why is voltage is required to be within permissible range for an electrical equipment?

1272


Star Delta Diagram with full description

1908


what are problems caused by the pdu in rack server

1462


in a simple IDMT relay we use neutral point of ct for earth fault then what is the requirement of neutral ct and cbct?

1679


what are the necessary basic electrical topics to learn for mechanical engineer to deal practical problems.

1776


ROC converges if poles and zeros lie inside a. Origion b. Z=1

1793


what is an unbalance in acircuit? in a three phase 3wire circuit how an unbalance will come? in a three phase four wire system how an un balance is coming?

1353