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Fluke Resource Center

Fresh, frequent news and information about test and measurement from Fluke experts and field professionals. You’ll find tips, how-to, updates, and experiences via text, audio, video, slideshows, and e-magazines in flip book format.

13 common causes of motor failure

13 common causes of motor failure

Motors and drives, the key components of any facility, are used everywhere and can be prone to a number of unseen problems.
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Top stories

  • Row of motors for HVAC system

    Transients and voltage unbalance

    The electrical power issues that most frequently affect industrial plants include voltage sags and swells, harmonics, transients, and voltage and current unbalance.
  • Top causes of single-phase motor malfunctions

    Top causes of single-phase motor malfunctions

    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.

  • Troubleshooting photovoltaic systems: Three typical problems

    Troubleshooting photovoltaic systems: Three typical problems

    With the push to energy independence and renewable energy sources, HVAC technicians need to know how to troubleshoot photovoltaic systems
  • A fresh look at power quality

    How power quality issues affect the plant and how to get rid of them for good

    The electrical power issues that most frequently affect industrial plants include voltage sags and swells, harmonics, transients, and voltage and current unbalance. The proper tools to correct these issues include knowledge and electrical test instruments ideally suited for each task.

  • What is current?

    What is current?

    Current is the rate at which electrons flow past a point in a complete electrical circuit.

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Recent stories

What is true-RMS?

What is true-RMS?

The need for true-RMS meters has grown as the possibility of non-sinusoidal waves in circuits has greatly increased in recent years. Some examples include variable speed motor drives, electronic ballasts, computers, HVAC, and solid-state environments.
What is duty cycle

What is duty cycle?

Duty cycle is the ratio of time a load or circuit is ON compared to the time the load or circuit is OFF.

What is frequency?

What is frequency?

AC frequency is the number of cycles per second in an alternating current (AC) sine wave.

Measuring linear distances

Measuring linear distances

Measuring linear distances