Answer / nidhi sheth

for star connected load phase voltage is equal to line voltage divided by root three

and

for delta connected load the phase voltage is equal to the line voltage

Answer / mariyadas

In three phase system voltage between any line(red or yellow or blue) and neutral is called phase voltage

The voltage between any two lines is called line voltage

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WHEN THESE TRANSFORMERS WINDINS CONFIGURATION ARE USED? SPECIALLY EXPLAIN REGARDING STEP UP AND STEP DOWN KEEPING IN MIND.AND REGARDING LOAD ALSO. a.star to delta b.delta to star c.delta to delta d.star to star ALSO EXPLAIN WHY V USE 415/415 TRANSFORMERS IN TUBEWELLS?

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3 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. Draw the individual and combined impedance diagrams to a base of 10 kVA. Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.

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0 Answers   Veez,

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3 Answers   Deccan Cements,

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