Motor Analyzer Pinpoints
Performance and Problems
The new Fluke 438-II power quality and
motor analyzer uses innovative algorithms
to analyze not only three-phase power
quality, but also torque, effi ciency, and
speed to determine system performance
and detect overloaded conditions, eliminating the need for motor load sensors.
The Fluke 438-II simplifi es the process
of motor performance diagnosis by providing
analysis data for both the electrical
and mechanical characteristics of
the motor while it is in operation. Using
proprietary algorithms, the 438-II measures
the three-phase current and voltage
waveforms and compares them against
rated specifi cations to calculate motor
mechanical performance. The analysis is
presented in simple readouts, making it
easy to gauge the operating performance
and determine if adjustments are needed
before failures cause an operational
shutdown. The analyzer also provides
measurements to determine a motor’s
efficiency and mechanical power under
operating load conditions. These measures
allow maintenance engineers to
determine the motor’s in-service operating
power compared to its rated power
to determine if the motor is operating in
overloaded condition or, inversely, if it is
oversized for the application.
www.fluke.com
As featured in Womp 2016 Vol 06 - www.womp-int.com
