Answer Posted / chin2

power losses depends on current (copper) and voltage (iron)
so if we take power KW it is also a factor of power factor
so we use KVA

in Telecom DC system-why positive +ve is made earthed.and - ve is fed to load.

2698

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What will be the voltage regulation of a full load and 0.80 power factor lagging load transformer when a two winding single phase transformer has a voltage regulation of 4.5% at full load and unity power factor?

1223

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what is earthing.how we make it,describe briefly.

2621

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What is critical disruptive voltage?

1321

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Role of active and reactive Power sharing in between two synchronized Generators, Droop Setting role ?

1759

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why we are using earth pit in sub stations.?

2167

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WHY EARTHING NOT NEEDED IN BATTERY IN SUBSTATION

1970

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Hi,iam a diploma in electrical engineering.rtd from indian air force in apr 2007.prsently working in reliance next link as a network maintenance engineer since 2007,can i get a job in motherson sumi.

2373

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our industries ht line so power fluctation(once drop of power please rectify causes

2255

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wow to calculate the transformer rating(KVA)

2270

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please send me RRB electrical engineer previous year questions for Sr. Section Engineer

1953

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How do you compute voltage drop and cable size over distance?

2271

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234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,

2031

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how slip power recovery system work

3027

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it is possible to rotate the DG engine dc starter with wrong polarity connections? why?

2255

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