Instead of single phase(220), if we apply Phase to phase
(R&Y)supply (eg: for lighting fixture). what will be the
power formula?
Answer / k.prakashchandra
W = Vry x I Make sure that Vry is not very high.
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what is the effect when the shunt field winding is opened in dc shunt motor (i) at the time of starting ? (ii) in running condition ?
what is the CT & PT. where is it uses.what is the using that plese kindly answer me...?
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what is the rating of a power transformer?
which is the most common harmonics 3rd,5th,7th affect the systegm
ohms law is applicable for dc or ac current or for both??? explain it berifly??
if voltage in transmission line more than current will be more or less,if less what about the Ohm's law
differance b|w ground, neutral&earth
How can we calculate the KVA rating of a Distribution transformer from its core details?
Is it any dc fuses availbale in market? can we use one fuse for both AC & DC ?
What Is HO factor in power selection
all interview questions with answers of ntpc (2000-2009