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Question:

How many square cables does the submersible pump for 7.5KW need?

How many square cables does the submersible pump for 7.5KW need?

Answer:

7.5KW's submersible pump requires 2.5 square aluminum cables.Calculate the current value of submersible pump first:
Jul 31, 2017
I=P/ (1.732Ucos phi) =7.5/ (1.732X0.38X0.85) =13A (calculated according to three-phase city power, power factor 0.85).
Jul 31, 2017
According to current I=13A, it is estimated that the cable is less than 10 square meters, so the cable cross section can be calculated at the ampacity of 5A per square meter. The square section of the cable is =13/5=2.6 square. According to the specifications series, optional 2.5 square aluminum cables. When the cable is longer, it is safer to choose 4 square aluminum cables.
Jul 31, 2017

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