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It's actually very easy to detect electric motor health.
Vibration analysis can sense bearing condition and megger and growler testing can give stator winding insulation condition.
This is fully developed testing science that has been used on industrial motors for nearly 30 years and has been gaining increased popularity with the expanding use of variable frequently drives. VFDs are a little harder on motors than just running them on organic 60hz power all the time.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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