Voltage unbalance degrades the performance and shortens the life of a three-phase motor. Voltage unbalance at the motor terminals can cause current unbalance that is far out of proportion to the voltage unbalance. Unbalanced currents lead to torque pulsations, increased vibrations and mechanical stresses, increased losses resulting in lower efficiency, and motor overheating, which reduce... (read more)

At ALL-TEST Pro, we are committed to bringing you the latest information and motor testing knowledge available. The information below contains in-depth tips on how to test an electric motor completely with deenergized and electrical signature analysis testing methods.

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Electric Motor Troubleshooting

At ALL-TEST Pro, we are committed to bringing you the latest information and motor testing knowledge available. The information below contains in-depth tips on how to test an electric motor completely with deenergized and electrical signature analysis testing methods. (read more)

MOTOR VIBRATION ANALYSIS EQUIPMENT: VIBRATION MONITORING VS ESA (read more)

ALL-TEST PRO 34 EV™

DEENERGIZED MOTOR CIRCUIT ANALYSIS™ (MCA) TESTING INSTRUMENT

The ALL-TEST PRO 34 EV™ instrument is the only tool currently on the market for testing permanent magnet motors and generators used in electric & hybrid vehicles.

ADVANTAGES OF THE ALL-TEST PRO 34 EV™

Detect issues in hybrid and electric car motors befo... (read more)

THE SMALL BUT MIGHTLY DEENERGIZED MOTOR CIRCUIT ANALYSIS™ (MCA) TESTING INSTRUMENT (read more)

EV SHOP AND MAINTENANCE TALK WITH DR. MARK QUARTO FROM QUARTO TECHNICAL SERVICES

Electric vehicle (EV) powertrains are much simpler compared to traditional combustion engines. These motors do not require the normal service such as oil changes, spark plug, fuel and oil filter maintenance. Electric motors are generally reliable, long-lasting and easy to maintain. Even though... (read more)

Electrical Signature Analysis (ESA) is a predictive maintenance (PdM) technology that uses the motor’s supply voltage and operating current to identify existing and developing faults in the entire motor system. These measurements act as transducers and any disruptions in the motor system cause the motor supply current to vary (or modulate). By analyzing these modulations, it... (read more)

The ALL-TEST PRO 33 EV™ (AT33 EV™) motor circuit analysis tool allows users to conduct motor insulation testing for three-phase electric machines, hybrids, plug-in hybrid electric vehicles (PHEV) and electric vehicles. Users can perform insulation, static, dynamic, and dissipation factor and capacitance testing simply and accurately.

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If you are using three-phase systems, you should be aware of unbalanced voltages, one of the most common electrical power issues for industrial plants. The chances of your plant having imbalances are high when you do not have measures in place to prevent them. Catching imbalances before they cause severe damage to your equipment is ideal.

Below, find out what voltage unbalances ar... (read more)

Why test motors? Because motors fail.

Not all winding faults start as ground faults. Identifying motor faults before the motor fails can save you countless hours in downtime and maintenance fees. (read more)

With unmatched portability, ease of use, and safety features, ALL-TEST Pro’s line of electrical motor testing equipment enable technicians to evaluate equipment in the field, on the shop floor, or at a service facility. (read more)

At ALL-TEST Pro, we are committed to bringing you the latest information and motor testing knowledge available. The information below contains in-depth tips on how to test an electric motor completely with deenergized and electrical signature analysis testing methods. (read more)

The ATPOL III power quality and electric motor analyzer is the most complete electrical signature and power analysis instrument. (read more)

THE COMPANY

A motor distributor in the Netherlands provided a 17 Kilowatt, 400-Volt motor to a local hospital in 2015. The hospital rented a portable crane to install the motor onto the roof of the building. The motor is used to operate a fan that is mounted on the hospital’s roof. In the spring of 2016, the motor suddenly stopped running, so the motor distributor was... (read more)

Get the motor health data you need to make a quick and informed decision. (read more)

WHY TESTING AN ELECTRIC MOTOR WITH A MULTIMETER IS NOT ENOUGH (read more)

A broken or fractured rotor bar fault can occur with excessive starts, large loads, manufacturing processes, etc. When a broken rotor bar occurs, there is no longer a path for current to fl ow. This creates stress on the neighboring bars in the form of increased current and heat. Eventually these rotor bars fail over time.

... (read more)

Regarding electric motor analysis, one of the most powerful functions on the AT7 is the Z-FI Test Mode. (read more)

When new motors are tested the technician may encounter motors with multiple motor leads. (read more)

Electric vehicle (EV) powertrains are much simpler compared to traditional combustion engines. These motors do not require the normal service such as oil changes, spark plug, fuel, and oil filter maintenance. (read more)

ELECTRIC MOTOR PROBLEMS AND SOLUTIONS

Identifying and addressing the most common electric motor issues is crucial for maintaining efficient and reliable operations. From overheating to bearing failure, understanding the root causes of these problems can help you implement effective solutions. (read more)

3-PHASE MOTOR FAULT FINDING: A GUIDE (read more)

Professionals often think if a motor sounds like it’s working, then systems must be in order. However, this assumption is far from the truth. Motor failures can happen when your team least expects it. (read more)

Without regular maintenance, electric motors are prone to wear and tear. Industries that use machines 24/7/365 creates stress on connections, fuses and bearings. Even new motors can suffer from power surges and can put you out of commission for weeks. (read more)

POWER PLANT USES ELECTRICAL SIGNATURE ANALYSIS FOR PERFORMANCE ASSESSMENT (read more)

A 398 KW MV motor that runs a blower fan in a cement plant was showing strange behavior. The vibration equipment indicated vibration amplitudes that became chronic with the passage of time. The maintenance team not knowing what the issue was, ran the motor until the bearings had to be replaced. This happened several times with no remedy or cause for the bearing failures. On a few occasio... (read more)

Regarding electric motor testing, polarization index (PI) is a measure of how much the insulation system resistance improves (or degrades) over time. (read more)

The quickest and easiest way to obtain an overall condition of a motor and compare it's condition over time is using the IND Test available on the AT34, AT7, and AT7 Pro.
Named for its comprehensive, 'industrial-like' strength, the IND Test measures impedance, inductance, phase angle and current frequency on 5 frequencies within 3 minutes. The measurements of each property can be vi... (read more)

VIBRATION SENSOR ALERT (read more)

ELECTRIC MOTOR TESTING WITH A MULTIMETER VS THE ALL-TEST PRO 7 (read more)

WHY TESTING AN ELECTRIC MOTOR WITH A MULTIMETER IS NOT ENOUGH (read more)

POWER PLANT USES ELECTRICAL SIGNATURE ANALYSIS FOR PERFORMANCE ASSESSMENT (read more)

ENERGIZED (ESA) + DEENERGIZED (MCA™) TESTING INSTRUMENT PACKAGE (read more)

ONLINE MOTOR TESTING WITH ELECTRICAL SIGNATURE ANALYSIS

Electrical Signature Analysis (ESA) is an on-line test method where voltage and current waveforms are captured while the motor system is running and then, via a Fast Fourier Transform (FFT), a spectral analysis is done by the provided software. From this FFT, faults related to incoming power, the control circuit, the motor it... (read more)

Dissipation Factor is an electrical test helps defi ne the overall condition of an insulating material.

A di-electric material is a material which is a poor conductor of electricity but an efficient supporter of an electrostatic field. When an electrical insulating material is subjected to an electrostatic field, opposing electric charges in di-electric material form di-pol... (read more)

Motor condition monitoring tools were used to assess the power quality and consumption at a municipal utility district. (read more)

MOTOR GENIE MCA - Electric Motor Analyzer

The MOTOR GENIE® MCA is a handheld motor analyzer that uses patented technology to troubleshoot low-voltage AC induction motors (< 1000V).

The MOTOR GENIE® MCA finds:

• Winding Faults

• Ground Faults

• Open Connection

• Contamination

Lea... (read more)

A power plant in Northeastern US used an ATPOL III with electrical signature analysis to identify motor pump performance issues. (read more)

ADVANTAGES OF THE ALL-TEST PRO 7™ PROFESSIONAL

Test any motor’s resistance, stator, rotor, contamination and insulation stats all on one device and receive accurate diagnostics within as little as a few minutes.

In addition to the core functionalities of the ALL-TEST PRO 7™, the ALL-TEST PRO 7™ PROFESSIONAL has additional functio... (read more)

ELECTRIC MOTOR TROUBLESHOOTING

At ALL-TEST Pro, we are committed to bringing you the latest information and motor testing knowledge available. The information below contains in-depth tips on how to test an electric motor completely with deenergized and electrical signature analysis testing methods.

Learn More (read more)

DEENERGIZED MOTOR CIRCUIT ANALYSIS™ (MCA) TESTING INSTRUMENT

The ALL-TEST PRO 7™ Professional (AT7 Pro) empowers technicians to efficiently and accurately evaluate motors in the field or on the shop floor.

FEATURES

• Hand-held & Lightweight (under 1lb)
• On-screen, step-by-step testing instructions
• Quick Testing (less than 3...

Many industries, including wastewater, steel, automotive and power generation industries, use electric motors to sustain production processes by converting inputs into mechanical power. Electric motor systems contain dozens, if not hundreds, of parts vital for business operation. Preventative motor testing measures are necessary to ensure your daily responsibilities continue. (read more)

ALL-TEST PRO 7™ PROFESSIONAL

DEENERGIZED MOTOR CIRCUIT ANALYSIS™ (MCA) TESTING INSTRUMENT

The ALL-TEST PRO 7™ Professional (AT7 Pro) empowers technicians to efficiently and accurately evaluate motors in the field or on the shop floor.

FEATURES

• Handheld & Lightweight (under 1lb)
• On-screen step-by-step testing instruct...

ALL-TEST Pro designs and delivers comprehensive learning experiences that incorporate theory, new technologies, and practical field applications to educate attendees in the scope of motor diagnostics and comprehensive testing, including Motor Circuit Analysis™ (MCA™) and Electrical Signature Analysis (ESA). (read more)

As per industry standard, ALL-TEST Pro recommends that all devices be recalibrated each year. We offer in-house calibration services as well as National Institute of Standards and Technology (NIST) Certified Calibrations.

When ALL-TEST Pro develops a product, one of the most important things we think about is how our instruments perform over time.

Our engineers caref... (read more)

As per industry standard, ALL-TEST Pro recommends that all devices be recalibrated each year. We offer in-house calibration services as well as National Institute of Standards and Technology (NIST) Certified Calibrations.

When ALL-TEST Pro develops a product, one of the most important things we think about is how our instruments perform over time.

Our engineers caref... (read more)

Troubleshoot any motor’s resistance, stator, rotor, contamination and insulation stats all on one device and receive accurate diagnostics within as little as a few minutes.

The AT7™ electric motor testing device is used detect motor abnormalities in electric motors across every industry.

Our handheld motor testing devices outperform our competitors