I'm working on a electric scooter and I just finished mounting the motor.
I was curious to see how it runs so I jumped on it and increase the throttle. When the motor started spinning, the force needed to move the scooter was a lot higher so the motor couldn't rotate.
Is this bad for the motor? Can this act of trying to rotate the motor while it is stuck ruin it?
Every part of that that gets extra hot is a bad sign, battery pack included.
It sounds like you need to gear the motor down, give it leverage to move the load. 7200 rpm in, 1440 rpm out at much higher torque and then the regular selectable gears.
How did the motor start spinning when it could not rotate?
How does the horsepower rating of the motor compare to a 49cc scooter or chainsaw motor?
GoForSmoke:
Every part of that that gets extra hot is a bad sign, battery pack included.It sounds like you need to gear the motor down, give it leverage to move the load. 7200 rpm in, 1440 rpm out at much higher torque and then the regular selectable gears.
How did the motor start spinning when it could not rotate?
How does the horsepower rating of the motor compare to a 49cc scooter or chainsaw motor?
The motor did not start spinning. It was just wobbling.
It has a 1000W power.
The gear ratio is 3:1
Sounds like your battery, controller and/or wiring are inadequate.
A 24V motor will draw about 42 Amperes when producing 1000W, and of course it draws the stall current when starting up, which is probably in the range of 200 to 400 Amperes.
And yes, powering the motor while stalled could destroy it.
First the insulation in the coils burns up and then the short finishes it.
1000W is input power, what is the horsepower rating? 1/4 horse can move you and the bike but only so fast.
Without efficiency accounted for, 1000W is 1.34102 HP. You might get 40% or more out at full power which is still strong.
Many bicycle motors I have seen use a motor that drives a small wheel against the rear tire. The rider helps by pedaling to at least get up some speed and make quicker starts. I've seen those use gas motors the size of bigger RC motors, they were not for going up hills, LOL!
softt:
I'm working on a electric scooter and I just finished mounting the motor.
I was curious to see how it runs so I jumped on it and increase the throttle. When the motor started spinning, the force needed to move the scooter was a lot higher so the motor couldn't rotate.
Is this bad for the motor? Can this act of trying to rotate the motor while it is stuck ruin it?
With domestic sized motors like this you can expect a stall to cause the windings to heat up pretty quickly, and
then burn out. 5 to 30 seconds perhaps? A brief stall can be tolerated, but only a brief one.
However this assumes the power supply can produce that amount of current, which may not be the case.
Some motors have temperature sensors or thermal fuses buried in the winding(s) to detect overheating
and allow for shutdown before damage occurs.
Did you monitor the current to the motor while you tested it?