A winding ohmmeter can be used Three channels, four-point Kelvin measurement of resistance, enable users of RMO-M devices to obtain a simultaneous measurement of up to three windings in rotating machinery. This cuts down testing time significantly.
Various problems can be detected with RMO-M instruments:
- Broken winding (open winding)
- Turn-to-turn short
- Short-circuited winding
- Phase-to-phase short
- Low quality of solder joints