dear all i am kumara now current working in electrical designing of control and relay panel i want learn some substaion design then any book are available. pls mention name and authour

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What is an alternator impedance value?

0 Answers   Orchid,

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last week we did the REF relay test by closing single pole (R phase) of CB and apply 380V at the primary of delta transformer. we get 33A at the primary of the R phase star end. but we get 380A at both R an B in delta side. how and why?

1 Answers   Siemens,

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Meter p.t. ratio= 3×230/400 , c.t.ratio = 3×1 (2) A what is m.f.

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I am in last year of Engineering.I want to apply for ONGC on GATE based score.They require Certificate of Competency as Electrical Supervisor.How can i get this certificate so I can apply for AEE(ELECTRICAL) in 2016

1 Answers   ONGC,

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what is negative,positive abd zero sequence current explain clearly

1 Answers   Jindal,

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can we install LT panel & HT panel in one room?

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In scott connected transformer number of turns in the primary winding of teaser transformer is % of number of primary turns of main transformer A 86.6 B 57.7 C 14.4 D 33.3

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If the positive terminal of batteries in 125 v dc system is connected to earth what will happen ?

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What is the bundle conductor?

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give single line diagram of D.G distribution form alternator to main L.T panel?

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what is the disadvantages of common earthing for AC and DC equipment? (i am talking about inverter control room and inverter duty transformer earthing is common...?)

0 Answers   TATA,

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