Monthly Archives: May 2010

Variable Frequency Drives Preventive Maintenance: Statistics Tell the Story

Since designing and implementing a formal preventive maintenance (PM) program for variable frequency drives (VFDs) just under two years ago, Delta Automation has developed some interesting statistics related to the operational condition of VFDs. The generally accepted practice for most … Continue reading

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The importance of having an authorized service provider sell, install, and start up your VFDs

Delta Automation, Inc. was requested by a large VFD manufacturer to go on-site and evaluate a VFD that had been giving a client trouble since it’s installation by another vendor over a year ago. This is a manufacturer that has … Continue reading

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Proper phasing of a VFD with bypass

A local college contacted Delta Automation with a request for on-site service to repair a VFD on the hot water pump for their heating system. This heating system was for the gym where a basketball game was scheduled for later … Continue reading

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