Great video as always. This a great for a quick diagnose of a broken or not broken motor. However for intermittent issues under load I suggest carrying out the test over a longer period of time ( that would require other test equipment). Anyway great as always, take it easy and stay safe!
What about in a dual voltage 3 phase motor? You should show how you megga the windings to ground and to the opposite end of the windings. But good video ty!
To tell you the truth this is a waste of time and $ for generic units and let me tell you why: On a 3 phase motor or compressor the ohm readings across each leg will always be the same reading across each leg, ex:( L1 and L2 =3 ohms, L2 and L3= 3ohms, L3 and L1= 3ohms) this is just an example, some motors or compressors will be a different ohm number but the point is the ohms will be the same. If a motor is bad you’ll be able to tell if the bearing is shot, the shaft doesn’t spin free, or you don’t have continuity across each leg or you have a short on a leg. The reason this tool is useless bcuz this tool can say that the ohm reading is bad but in reality it’s not taking into account that the motor or compressor was running under a load for a long period of time when the test was performed. If you suspect the motor is bad CHANGE IT OUT, don’t waste your $ on this tool
