Answer / vicky

Please see the link below
http://lightingcolumns.eu/lightning-protection-mast/

what is negative,positive abd zero sequence current explain clearly

1 Answers   Jindal,

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When both contractor star & delta is hold in star delta motor ?? So what happen in this case ??

1 Answers  

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how to reduce shorting current in a slipring induction motor

3 Answers  

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what is isochronous mod? what is voltage drop mode and p.f mode?

0 Answers   ABB,

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why two over current realy used in vcb.

2 Answers   BSES, Wipro,

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Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...

0 Answers  

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What is RTCC panel and why it is required

31 Answers   RTCC, Tivoli Grand,

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the 230 value of voltage which is use in our home . is that value is rms, aerage or peack value of voltage?

5 Answers   L&T,

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PRV (Pressure relief valve) Trip with oil splash outside power transformers

1 Answers   Khan,

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i have one transformer 1000kva, 11/.433kv. we are using 200/5 amp. ct unit for measuring purpose, & one 800 amp. V.C.B Unit for the same t/f operate, i wants to known the primary current of T/F is only 53 amp. why we used 800 amp. V.C.B ? & 200/5 amp. CT Unit.

4 Answers  

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What does Bode plot tell you?

0 Answers   Ericsson,

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why does same amount of current flow in the circuit inspite of any number of resistances in the circuit?

3 Answers  

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