Answer / raju

Cable tray size must be double of the cable diameter.for
example, three cables(4c/95sqmm,4c/70sqmm,4c/50sqmm)are
traveling in a corridor,...the diameter of
95sqmm-41.7mm,70sqmm-37.7,50sqmm-32. then the total diameter
of the cables are 111.4. for this total diameter, the size
of the cable tray should be double of the total
diameter,.i.e 225mm cable tray can be use.

What accessories required to give the motor with given circuits and do you know the ratings of those accessories?

4 Answers   Hyundai, TCS,

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Diode is active or passive element?

14 Answers   Infosys,

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What will happen to the speed of synchronous machine subjected beyond the pull out torque? Are the behavior shown by rotor remains same for both the alternator and motor?

1 Answers  

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Can any body explain the operation system of MVWS(May be related to water and fire hydraunt system)?

2 Answers   TATA,

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for 12KW motor which cable size has to select for ex.10 meter.

4 Answers  

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we need a ntpc previous papers

0 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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why 120 devided with pole and speed multiplication to determine frequency

1 Answers  

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short notes on npn & pnp transisitor..........

5 Answers  

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What is hipot test procedure?

0 Answers   CCC,

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what is a kit kat fuse?

5 Answers   TCS,

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1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.

0 Answers   ABC,

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