failure
Case Studies and Stories
Energized Motor Testing Reveals Improper VFD Settings
This 55-kilowatt, 400-volt motor is controlled by a variable frequency drive (VFD). This motor drives the centrifugal fan that sends air into a natural gas combustion burner...
- Ettore Di Pasquale
- ALL-TEST PRO
White Papers
Evaluating Wave Files to Determine the Severity of the Ultrasonic Emissions
We are often asked at which voltages and on what type of equipment is ultrasound most effective... The answer is not simple since it often depends on the individual asking the question...
Case Studies and Stories
In-Rush/Start-Up Current Test Prevents Catastrophic Failure
The In-Rush/Start-up test was designed to look at the in-rush and decay of current during a direct start. In this case study, we evaluate the answer as it applies to a utility company...
- Noah Bethel
- PdMA Corporation
