I got shortlisted in RRB thiruvananthapuram for the post of Junior Electrical engineer, waiting List - 7. i want to know about the validity of the current list and chance to get the job please help anybody knws abt it,, thank you

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why weight is put on pulley?

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why we r used APFC Panel in industrial area.when P.F. low then wat will be the effect in our system?

10 Answers   ABB, Georgio Rocks, Piramal Healthcare, Zenith Engineering Corporation,

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how u select control transformer for a mccb panels or any panels?for expample we hav 440 volts maim supply and control volts is 230v?

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why impudance relay used for medium transmission power system? why not others?

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can anyone help me regarding bout Electrical designs and calculations .. which text book should i follow as i am a trainee engineer.Description of my work which is Electrical designs like cable sizing, lighting, lightning, Gensets sizing, motor sizing, transformer sizing, generator sizing, circuit breakers, PDB MCC PCC SLDB MLDB panels, Single line diagrams mainly, substation desings, cable routing and layouts, reactive power compensations, power factor improvement, voltage drop calculations, power generations, power transmission, power distributions all calculations.Please help me

3 Answers  

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What happens if the Capacitive Voltage Transformer Primary neutral is not earthed. There is a CVT between Transformer and source, and the CVT neutral of the transformer is not earthed, does it effect the transformer while charging or does it effect the transformer charging process.

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what is ground fault current? is there any current flow takes place through ground? is it possible? if it's possible whether it affect human beings on earth near the fault or not?

2 Answers  

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Why DC excitation is used for alternators? Why cant it be AC?

35 Answers   ABB, Ace Info, Alstom, Shalivahana Power,

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What are the disadvantages of LT AVR over HT AVR?

1 Answers   APTransco, Jindal, TNEB Tamil Nadu Electricity Board,

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IN 3 phase induction motor where we give i/p supply & how its working ?

2 Answers  

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What is the distance b/w R&Y phase in 33kv T.line,11kv &440v

1 Answers   NTPC,

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