VFD selection and harmonics: what to get right before the drive arrives
Sizing, bypass, braking, cable, and the harmonic distortion that variable-frequency drives push back onto your plant power.
Motor Control Center (MCC)
Centralized motor starter lineup.
Floor-standing lineup of buckets feeding motors: starters, VFDs, breakers, and overload protection in one maintainable assembly. Smart MCCs add networked I/O and energy metering.
See also: VFD · Soft starter
Use the concept: MTBF, MTTR & availability calculator · Engineering unit converter · Industrial energy cost calculator
In depth
Hazardous area classification, explained
Zones, divisions, gas groups and temperature classes decide which equipment may sit in a classified area. IP and NEMA ratings answer a different question.
Gauge R&R: how much variation is the gauge?
A gauge R&R study separates measurement error from real part-to-part variation, so you can tell whether a tolerance decision is trustworthy.