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 maximum load on for 10 kva & 25 kva transformer

8 Answers   ABB, Power Grid,

What are the basic properties of signal flow graph?

0 Answers  

why we can use 1 to 5V dc

0 Answers  

what is ignition?

1 Answers  

Does the isolator has a making capacity????????

2 Answers  

How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f normally used in Canada is to be operated in Europe on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same

1 Answers  

Can someone help me in the Below Quest on Earthing 1.Types of Earthing and Recommended for what use 2.What is the Pit value /Panel N -E value should be or within limit for RP and UPS .

1 Answers  

why dc current is supplied in america rather than ac

1 Answers  

Why Lightning arrester used? Can we use piece of iron as a core material of transformer, if No, why? In CRGOSS material what is meaning of cold rolled grain oriented? Why Impegrenation of Transformer is done? Properties of Insulator? what is phase angle? Testing of transformers (Routine & Monthly)?

6 Answers   NTPC,

why magnet has north and south poles only why not east and west and why we are considering as north and south poles? why cant we consider as east and west?

0 Answers  

On a transformer name plate %IZ(%Impedence) is mentioned. What is the meaning of %IZ and how it is calculated?

3 Answers   Ambe Consultancy, Siemens,

Total power capacity of india at present

8 Answers   Bhel,