Answer / k.prakashchandra

Both the answers are correct except for calculation error in
No. 1.You have to consider IR drop also. Upto 25 m length 4
A/ sq mm and upto 100 m 2.5 A/ sq mm may be taken as
carrying capacities.

Answer / shantanu mishra

100 Amps. You can take current density as 4 amps per square
mm for copper. For Aluminium cable it can be taken 2 Amps
per square mm. This also depends upon many other factors
such as whether cable is under ground, or burried or
whether it is overhead. tou shouls also takeinto account
ageing factor also.

Answer / shantanu mishra

I will just make a little correction..." you should also
take into account the derating factor.

Answer / sandip

please refer the manufacturer catlog for
this que. but u have to ask that how to
calculate the current carried out in
25sqmm cable ? actully i also dont know
abt the calculation. if any one have
theformula please send iton my mail add.
sandippatel2310@gmail.com

Answer / satveer sagar

1 sq mm will be taken 3 times current

Answer / sri

10 amps because 1sqmm =2.5a

what is the meaning of the symbol << >> put in transformer drawing

0 Answers   TATA,

WHY POLARITY TEST OF CT IS VERY IMPORTANT IN SWITCHGEAR

3 Answers   Birla, Reliance,

How much depth n width required for laying of 1X70 Sqmm Cable in Desert???

0 Answers   Alka Electromech, Aramco,

what is the purpose of silicon dropper used in battery charger?

0 Answers   KNPC,

how to test and calculat the head and discharge in borewell compressor

0 Answers  

What are the necessary components of the feedback control system?

0 Answers  

If DG runing time Neutral earth connection Dissconect what will be the effect in load and equipments.

3 Answers   GE, HP, Reliance,

What will happen if we give the 3 phase supply to the rotor of slipring induction motor?

3 Answers  

what is meant by line voltage and phase voltage in a three phase transformer?

2 Answers  

Why only mesh earthing is used in G.S.S.?

2 Answers  

before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water

0 Answers  

you have a 2 tonne ac that operates for 2 hrs daily what will be you monthly bill (this is complete question asked nothing else was given)?

1 Answers