Maximum Power Carrying Capacity

You have to search a company cable catalog and you can find all detail in catalogue also do calculation with all factors ( voltage, temperature and etc ).

Here is one website you can find some information .

Click here

CR4 Admin: removed broken link

dear,

this is purely a theoritical question. Text books / reference books will show the same calculations. If not, pl. reply, I shall forward the same calculations.- eventhough, lengthy.

As a rule for distance I found is about 1kV for 1km.

For the power carrying capacity you should check the cable datasheet because it depends on the environment conditions where the cable is laid. The maximum load should not exceed the maximum temperature for insulation.

Dear Harry Potter, I am not having much knowledge of overhead lines, it will be helpfull if you provide the calculations for our reference. Amar

Samuela, it all depends on the type of conductor you choose. They have different current carrying capacity. E.g. for dog conductor, current carrying capacity = 300 A, Panther = 514 A, Zebra = 725 A.

Suppose we select, dog conductor for your 15 kV line the Power carrying capacity will be as follow:

P= Sqrt(3) * V*I* Cos (phi)

= Sprt(3)* 15* 300*0.85

= 6.625 MW

( we take power factor, cos (phi) = 0.85