Answer / hari

in 16 sq mm cable aluminium air 64amps ground 71amps duct
60amps temp 35degrs
in 16 sq mm cable copper air 83amps ground 92amps duct
72amps temp 35degrs

Answer / karan

You can refer to the cable manufacturers details and most
of them are availale on the net.

some time we open engine breaker 8.0 MW load but plant not trip. and another time engine open 4.0 MW load engine trip why? individually engine breaker open & individually emergency stop why difference?

0 Answers  

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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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arcing is due to only capacitance or it is due to both inductance and capacitance? explanation.

2 Answers  

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4 Answers  

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Whats the difference between three phase and single phase?

4 Answers  

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Why do power lines not short out when they fall into water?

0 Answers  

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findout of current?details 440v,3phase,085pf,hp-5

9 Answers  

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Why we use 4-20 mA Analog signal for the PLC input? Why not 0-20 mA? Why not 5-25 mA?

0 Answers  

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NGR? What is NGR?

14 Answers  

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Can we use BS 6651 and BS EN 62305 standards for computer room lightning ptotection in substation?

0 Answers   Jindal,

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What are protection of power transformer?

1 Answers  

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How can we calculate single phase load into three phase load

2 Answers   Jindal, Tanfac,

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