Most problems with single-phase motors involve the centrifugal switch, thermal switch, or capacitor(s). If the problem is in the centrifugal switch, thermal switch, or capacitor, the motor is usually serviced and repaired. However, if the motor is more than 10 years old and less than 1 HP, the motor is usually replaced. If the motor is less than 1/8 HP, it is almost always replaced.
Motors, drives, pumps, compressors
Receive personalized recommendations from a Fluke specialist
Getting the most for your motors
Resources to enhance your preventive maintenance and motor reliability programs. Explore solutions to reduce unplanned downtime, maximize uptime and increase speed to resolution.
Recent stories
This article demonstrates how to detect the 13 most common causes of winding insulation and bearing failure in advance.January 2020 | Motors, drives, pumps, compressors
Four keys to understanding motor efficiency, and causes for failuresJune 2019 | Motors, drives, pumps, compressors
November 2018 | Motors, drives, pumps, compressors
Motor drives are a ubiquitous technology for transforming the constant voltage from the main ac power supply into a voltage that varies to control motor torque and speed ideal for motors that are driving mechanical equipment loads.October 2018 | Motors, drives, pumps, compressors
This application note explains how to use the MDA-550 Motor Drive Analyzer and a shaft voltage probe to measure motor shaft voltage discharge events.October 2018 | Motors, drives, pumps, compressors
Fluke MDA-550 Motor Drive Analyzer provides clear diagrams of the proper setup, pre-defined test procedures and step-by-step instructions to save time and help streamline troubleshooting elevator motor drives.October 2018 | Motors, drives, pumps, compressors
MetalTech produces steel sheets. Maintenance technicians use the Fluke 1587 Insulation Multimeter to troubleshoot and maintain the equipment.
July 2013 | Motors, drives, pumps, compressorsPredictive maintenance (PdM) programs monitor equipment condition, with the goal of identifying problems in advance and avoiding equipment failure. One powerful tool for monitoring rotating equipment is thermal imaging.
May 2014 | Motors, drives, pumps, compressors
There's an old saying that the first time you hook up a three-phase motor it will run backwards. If you're lucky, it will only make you look foolish. If you're not, it could severely damage expensive equipment and cost you or your employer substantial money.
June 2013 | Motors, drives, pumps, compressors
Managing VFD voltage with a shaft grounding kit to detect shaft currents and eliminate downtime for customers, with a Fluke ScopeMeter™ oscilloscope
February 2014 | Motors, drives, pumps, compressorsTroubleshooting premature motor failures
June 2013 | Motors, drives, pumps, compressors
Four must-have measurement practices for the mechanical maintenance team: thermal, vibration, insulation, electrical
September 2014 | Motors, drives, pumps, compressorsHow to measure output voltage from a VFD to a motor
April 2019 | Motors, drives, pumps, compressorsHere we look closely at the first segment in a typical three-phase motor and drive system: from the mains supply at the drive input to the drive itself, concentrating on input measurements. This application note maps common problems to the measurements used to diagnose them . We show you what tools to use for a given situation and how to apply them to a problem, to enable you to troubleshoot more quickly and accurately.
January 2019 | Motors, drives, pumps, compressors
Troubleshooting motor and drive problems such as single-phasing (losing one of the phase voltages) and flashover currents to outer bearings.
October 2012 | Motors, drives, pumps, compressorsMonitoring power quality parameters in a variable frequency drive or uninterruptible power supply, can help to maximize performance. Find out how to determine what power quality parameters to measure and when as well as other associated issues such as harmonic currents.
July 2013 | Motors, drives, pumps, compressors
In the past, motor repair meant dealing with traditional three-phase motor failures that were largely the result of water, dust, grease, failed bearings, misaligned motor shafts, or just plain old age. But motor repair has changed in a big way with the introduction of electronically controlled motors, more commonly referred to as adjustable speed drives (ASDs).
July 2013 | Motors, drives, pumps, compressors
Preventing machine failure by detecting the first signs of trouble
July 2012 | Vibration, Motors, drives, pumps, compressors
Take a step-by-step approach to system troubleshooting
July 2013 | Motors, drives, pumps, compressors
