1.5 kW three-phase pump with 600 meters line, should match what big line?
1.5 kilowatts water pump distance 100 meters, with 2.5 square meters of electricity enough
Do you want to see the line loss how much pressure drop, if you want to ensure the working voltage of certain you pump, 600m pressure drop should be two-way, namely power press 1200m, press 380V, 1.5KW working current is calculated according to 3A R=, according to the resistivity * length / cross-sectional area of =0.0175*1200/S=21/S, and the loss of pressure drop =R*I=21*3/S=63/S, S take 3, loss of pressure drop is about 20V, the comprehensive economic cost, take 3 more appropriate, if you are willing to take 5, 6 are never mind, the thicker the loss is smaller.
Resistivity of copper conductors is 0.017 ohm mm / m, R= P L/S, the resistance can be obtained by 600 meters 2.5 mm - single stranded conductor is 4.08 ohms, and rated current 1.5KW three-phase pump is about 3A, so the pressure drop resistance of the wire leading to the U=4.08X3=12.24V. So if the supply voltage can be stabilized at 380V~400V, with 2.5 mm - cable; if the supply voltage is between 370~390V, with 4 mm - cable. (above is copper core, aluminum core shall be increased by 1)
