ALL-TEST Pro

Motor Testing Importance

Not all winding faults start as ground faults. Instead, they can start as a weakness in the winding insulation system that may eventually fault to ground when the motor stops running.


Motor testing is integral to the success and efficiency of your business. ALL-TEST Pro instruments ensure that testing your motor is safe, easy, and dependable. Our capabilities for troubleshooting and predictive maintenance are a means of sustaining critical systems and achieving meaningful ROI. Don’t leave motor failure up to chance – reap the cost-saving benefits of complete motor testing.

Why Motors Burn Out: Preventive Measures

Without regular maintenance, electric motors are prone to wear and tear. Some industries utilize machines 24/7/365, which creates stress on connections, fuses and bearings. Even if a motor is brand new, something as simple as a power surge can put you out of commission for weeks on end.


Electric motors typically showcase small, compact housings where heat has a difficult time escaping. Through factors such as excess vibration and changing temperatures, insulation and motor hardware become weak, putting your entire operation at risk. Over time, motors require a thorough cleaning to eliminate the chances of dirt, dust and debris contaminating moving parts, so proactive businesses should schedule an appropriate amount of time for inspections.


Always pay close attention to the conditions surrounding electric motors. If your company completes projects outside, humidity and moisture will take a toll on windings, fans and openings throughout the system. Troubleshooting individual components feels like guesswork, but electric motor testing is the best way to focus efforts in the correct areas.

Benefits of Electric Motor Testing

Electric motor testing is an effective route for understanding the condition of your machines. Resources such as the ALL-TEST PRO 7™ give you an accurate view of the motor’s health and pinpoints developing winding faults before they go to ground. Traditional tools are unable to detect small developing winding faults, but our devices give you complete and accurate information of the winding insulation, winding insulation to ground, and rotor.


Fault examples include:

  • Developing winding faults (turn to turn, coil to coil, phase to phase)
  • Connections
  • Ground faults
  • Contamination

Motor testing products from All-TEST Pro are designed to give you readings in just minutes, allowing you to improve safety, enhance energy efficiency and save money on costly repairs. Equipment operators and managers can attach devices near controllers, fuse boxes and more to determine if a problem is present.


The process for testing a motor depends on if you need a deenergized (MCA™) or an energized (ESA) approach.

MCA™ Deenergized Testing

MCA™ is a non-destructive deenergized test method to assess the health of a motor from the Motor Control Center (MCC) or directly at the motor, providing immediate and complete information on the status of the stator, rotor, connections, contamination, and insulation to ground.

Learn More About MCA™

ESA Energized Testing

Electrical Signature Analysis (ESA) is an energized test method where voltage and current waveforms are captured while the motor system is running, providing valuable information for AC induction and DC motors, generators, wound rotor motors, synchronous motors, machine tool motors, and more.

Learn More About ESA

Motor Testing With ALL-TEST Pro Devices

Using hand-held devices from ALL-TEST Pro is simple with our patented technology displaying onscreen instructions. Select models are optimized for voltage readings across induction, synchronous and single-phase motors and attach via included clips and push-pull connectors. Browse our list of motor testing products to find a compatible device for your current system.

Motor Testing Products

The ALL-TEST Pro Promise for Motor Testing

ALL-TEST Pro delivers on the promise of true predictive maintenance and troubleshooting, with innovative diagnostic tools, software, and support that enable you to keep your business running. We ensure the reliability of motors in the field and help to maximize the productivity of maintenance teams everywhere, backing every ALL-TEST Pro product with unmatched motor testing expertise.


Our experts give you the insight necessary to prevent unforeseen motor failure. For your ordering convenience, ALL-TEST Pro motor testing devices are available worldwide and serve as the industry standard for performance and upkeep. For further information regarding our products or to request a quote, contact us today.

Contact Us
Share by: