What others are reading...
Here is what others are reading about electrical transformers on EC&M.Speed Control of Motors
Jan 1, 2008 12:00 PM, By Steve Vidal, P.E., Joseph J. Vidal & Sons, Inc.
An introduction to variable-frequency drives. Speed, torque, and horsepower are three inter-related parameters in motor control. The speed of a motor, measured in revolutions per minute (rpm), defines...
Line Reactors and VFDs
May 1, 2002 12:00 PM, By John A. Houdek, MTE Corp.
Line reactors can protect motors and reduce power line distortion from VFDs....
How to Keep Variable-Frequency Drives and Motors Running
Feb 1, 2009 12:00 PM, By Dan Orchard, Intigral, Inc.
When applied to blowers and pumps, variable-frequency drives (VFDs) offer energy savings. In mechanical applications, they allow fine adjustments that...
Maximizing VFD and UPS Performance
Apr 1, 2009 12:00 PM, By Randy Barnett, American Trainco, Inc.
If you're installing a variable-frequency drive (VFD) or uninterruptible power supply (UPS) or if you already have this equipment in place you should...
Understanding variable frequency drives.
Jul 1, 1999 12:00 PM, Turkel, Solomon S.
Here are basic guidelines revealing how to troubleshoot variable frequency drives and get them up and running fast.The trick to troubleshooting variable...
Are You Sure You Want to Put Your VFDs in Your MCCs?
Oct 1, 2002 12:00 PM, By Michael R. Olson, ABB
Deciding where to put your drives requires more than just casual consideration....
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VFD Basics & Troubleshooting
The Basics of Variable-Frequency Drives
May 1, 2009 12:00 PM, By Peter Novak, Fluor, Inc.
How to use various types of VFDs and harmonic mitigation tactics to combat the heat loss that accompanies these devices...
Troubleshooting VFD Problems
Nov 1, 2000 12:00 PM, By Paul Frank
When a motor drive goes down, production often grinds to a halt. How do you find and resolve the problem quickly?When that variable frequency drive (VFD)...
Troubleshooting Your VFDs
Aug 1, 2000 12:00 PM, By Stan Turkel
Variable-frequency drives (VFDs), also known as adjustable-speed drives (ASDs) have become the preferred method of controlling speed to meet load requirements....
Troubleshooting VFDs
Apr 1, 2000 12:00 PM, By Paul Frank, PRIMEDIA Workplace Learning
When a motor drive goes down, how do you resolve the problem quickly?...
Tips For More Effective VFD Maintenance
Jul 1, 2001 12:00 PM, By Dave Polka, ABB Automation University
Do you know how to maintain variable frequency drives (VFDs)? It's easier than you might think, but it's something you shouldn't take for granted....
Understanding Variable Speed Drives (Part 1)
Mar 1, 1999 12:00 PM, Turkel, Solomon S.
Three basic types of variable frequency drives offer certain advantages as well as disadvantages depending on your motor application. The new flux vector...
