Motrix / Blog
The Motrix BlogNews and know-how for motor and rotating equipment shops.
Efficiency regulation, repair practice, testing and reliability, from the people who build software for the shop floor. Every claim comes with its source.
Regulation
RepairDoes a rewind reduce motor efficiency? What the studies show
The belief that every rewind costs a point or two of efficiency is persistent. Independent testing tells a more useful story about good practice.
TestingReading insulation resistance and the polarization index
IR and PI are among the first tests run on any motor that comes through the door. A practical refresher on what the numbers mean under IEEE 43.
ReliabilityVFDs and bearing currents: spotting fluting before it spreads
Variable frequency drives save energy, but they can also send current through motor bearings. How to recognise the damage and what prevents it.
From the shop floor
The work behind every work order.
Photos: Unsplash