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How to calculate HT XLPE CABLE for 11 kv / 433 v , 1500 kva
oil type transformer system?
plz provide step by step calculation

Answer Posted / uday

1500kVA X 0.8 PF = 1200Kw = 1200000W

P=RT3 V I COS fi

SO, P
I = -----------
RT3 x V x COSfi

1200000
I = -----------------
1.732x1100x0.8

= 79 A

Now take cable table and select the suitable xlpe cable.

Uday

Is This Answer Correct ?    46 Yes 51 No



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