Tag Archives: failed vfd

Emergency VFD Replacements at a Level 1 Trauma Center

Last weeks multiple massive thunderstorms caused major power dips, voltage spikes/surges, voltage fluctuations, phase losses and generator switch-overs. All of these electrical events  can create havoc upon sensitive electronic devices. VFDs are no exception. During these storms with all of … Continue reading

Posted in ABB, Delta Automation, Delta company news, Delta service advantages, On-site stories, Service stories, Uncategorized, VFD | Tagged , , , , , , , , | Leave a comment

Utilizing Inverter Duty Motors with VFDs

This is a good article from the U.S Department of Energy discussing the effects of VFDs on non-inverter duty rated motors. It discusses the insulation class recommended, in this article, “class H” is suggested. I previously had been recommending at … Continue reading

Posted in Delta company news, Delta service advantages, Tech Tips, Uncategorized, VFD | Tagged , , , , , , , , , , , , , , | Leave a comment

700 Horses….replaced!

A few days ago, a fresh water treatment facility in the tidewater area of Virginia, had two aged 350 H.P. VFDs fail catastrophically. That left them with only an auxiliary pump and about 30% of their capacity. A call was made to … Continue reading

Posted in Delta Automation, Delta company news, Delta service advantages, On-site stories, Service stories, VFD, WEG | Tagged , , , , , , , , , | Leave a comment