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IntoFPV Forum › Hardware Discussion › Motor, ESC and Prop v
Check for Shorted brushless motor winding

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Check for Shorted brushless motor winding
OverDischarged Offline
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#1
20-Jan-2017, 12:48 PM
Can anyone tell me how to check for a shorted or broken winding in a brushless motor. I crashed and have a stuttering motor now and want to be sure it's a motor issue before I replace the ESC
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cche Offline
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#2
20-Jan-2017, 12:51 PM
Resistance across each wire, anything unusual, ground. Also check your signal output connections in your fc
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Dutch Drone Builder Offline
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#3
20-Jan-2017, 01:11 PM
Do you use bullet connectors?
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AndreyM Offline
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#4
20-Jan-2017, 02:20 PM
(20-Jan-2017, 12:51 PM)cche Wrote: Resistance across each wire, anything unusual, ground. Also check your signal output connections in your fc

There's no ground in a motor, what do you intend by it?
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#5
20-Jan-2017, 04:35 PM
I think he mean the frame of the motor, if you measure zero ohm then you know that you have a damaged winding.
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#6
20-Jan-2017, 05:10 PM
Windings have very small resistance which most multimeters can't measure, it will show 0 between two phases for both a good and a fried motor.
If you have a winding short to stator you have to measure between motor wires and the stator, which is generally not accessible for a multimeter probe.
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