RE: DC motor Load indicator

shabaz — Thu, 30 Sep 2021 23:39:47 GMT

Hi Manoj,

Measuring current should meet your primary requirement, but also isn't the current related to speed? I think it's a linear relationship when the load is applied, you'll see the current increase almost linearly as the motor is loaded. At least for DC motors, I don't know what you're using.

You'll get a ton of insight by measuring the current but for sure you could measure other things like actual RPM if you wanted to, but it's not as directly related to protecting your motor as a straightforward current measurement (or even a fuse - consider a resettable fuse). Also you mention connection wiring burning, that really needs replacing with more suitable wire.. It's a fire hazard if the wire cannot support the maximum load or has flammable insulation.

RE: DC motor Load indicator

rsjawale24 — Thu, 30 Sep 2021 15:38:34 GMT

Maybe you can attach an ammeter and measure the current through the motor. High load means high power and higher current will be drawn by the motor.