Motor inductance

#1

Following an ESC burnout, I decided to check the inductance measurements of all my motors. The motors are T-motor AntiGravity 4006 380KV, with 18 coils (I can’t find any data for what the inductance of these should be).

I’m getting these sorts numbers for 4 of my motors

Phase A-B: 96.3 uH
Phase A-C: 84.4 uH
Phase B-C: 97.3 uH

So on all of the motors, the maximum variation of inductance across phases is about 12-15%. Unfortunately I don’t have any motors that I know for certain are okay, so I was just wondering what anyone makes of these numbers?

Any opinions much appreciated.

Thanks,

Tom

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#2

Anyone with any ideas?