10 HP motor, 460 V/35A
10 HP motor, 460 V/35A
(OP)
I am looking at a submersible mixer motor, 10 hp, 580 RPM (this is motor speed), 8.15 KW operating point, 460 volts 3 phase, 35 FLA. I had designed for a 10 HP motor and specified feeder and starter for 15 FLA. Does 35 amps make sense?
Steve
Steve





RE: 10 HP motor, 460 V/35A
RE: 10 HP motor, 460 V/35A
RE: 10 HP motor, 460 V/35A
Thanks
Steve
RE: 10 HP motor, 460 V/35A
Bill
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"Why not the best?"
Jimmy Carter
RE: 10 HP motor, 460 V/35A
power was 8.15 kW [1.092*Prated] That means the liquid specific gravity was 1.092 times more than designed. For these induction motors of 12 poles the multiplication: (pf*efficiency) is very low [about 0.4-0.6].
SEE http://www.flygt.lt/829377.pdf
From KSP you received probably a 15 HP [11.7 kW] motor.
P=SQRT (3)*Irated*ULL*pf*efficiency=sqrt (3)*35*0.46*.42=11.7 kW.
If it is the same propeller and the motor speed is the same then the required power will be the same 8.15 kW. If the rated current is 35 A the actual current will be between 20 to 25 A [approxim. 35A*8.15kw/11.7kw].
This is my opinion.
RE: 10 HP motor, 460 V/35A
RE: 10 HP motor, 460 V/35A
15 hp of 12 poles pf=0.67 efficiency= 0.7 Irated=35 A.