A new condition monitoring service
for large induction motors has been
introduced by ABB to detect
potential motor failure well in
advance. Called ABB MACHsense-P,
the service can spot trouble with
bearings, rotor winding defects,
imbalances, internal misalignments
and voltage abnormalities, providing
an early-warning to plant engineers
and saving costly downtime.

The service provides accurate
diagnosis; reports quickly, with a
summary delivered on-site; includes
integrated analysis for current,
voltage and vibration; rates defects
clearly, by severity; recommends
specific repairs; considers machine
design in judging defect severity;
reduces unplanned downtime; and
issues early warnings, allowing time
for planning maintenance.

ABB’s intelligent software analyses
vibrations and other data collected
from the motor with a high degree of
accuracy.

Cajetan Pinto, R&D manager for
ABB motors and generators, service,
says: “ABB’s analysis system uses
algorithms that pick out specific
signals. If you’re concerned about
bearings, our system can isolate the
signals coming from the bearings
itself. This service could extend the
working life of thousands of motors
running in critical applications.”