GoldenMotor.com Forum

General Category => General Discussions => Topic started by: Mayhem79 on September 09, 2018, 04:28:38 AM

Title: HPM 3000 no load amps question
Post by: Mayhem79 on September 09, 2018, 04:28:38 AM

Anyone have any no load amps data? Full throttle at 52 volts I'm showing 8-9 amps. Seems high to me.

thanks

Title: Re: HPM 3000 no load amps question
Post by: Bikemad on September 09, 2018, 08:28:42 AM

Hi and(https://i.imgur.com/evDSMvT.png)to the forum.

According to the dynamometer data for the 3kW motor (https://www.goldenmotor.com/hubmotors/hubmotor-imgs/HPM3000-48V3KW%20Data.pdf) 8-9 amps sounds reasonable.

The lowest current shown in the above test figures at maximum rpm is almost 15 amps, but as the motor is still producing 0.7Nm of torque, there must be a slight load on the shaft (this would explain why the current is at least 50% higher than your test).

Alan