Archive | Motors & Drives

6:34 pm
August 6, 2015
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Cool Advice On Hot Motors

Increased operating temperatures damage motors. Protection starts at the source. By Jim Bryan, Electrical Apparatus Service Association (EASA) The effects of excessive temperature on motor performance are notorious. After moisture, they are the greatest contributor to bearing and winding failures. Understanding the source of increased temperature is key to correcting the problem and improving the reliability of […]

6:04 pm
July 10, 2015
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Use These Keys to Achieve Effective Balancing

Looking for keys to successful dynamic balancing of your plant’s equipment? Use the following eight points from Ludeca Inc.’s (Doral, FL) Gary James. More important, include them as must-do elements in your balancing procedures. —Jane Alexander, Managing Editor — Inspect the equipment structure/mounts to make sure no cracks or loose bolts are present. — Confirm […]

3:29 pm
May 1, 2015
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Safe Starting of Motors: Check for Temperature Increase

Motor life depends on careful starting procedures and minimizing heat build-up.  By Jim Bryan, EASA Technical Support Specialist The most stressful time for an electric motor is during starting, when the shaft speed is zero and the motor current is at its maximum. This condition is termed starting or locked-rotor current. Figure 1 illustrates its effects, […]

10:41 am
March 12, 2015
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Maintaining Modular Conveyor Systems In Flexible Manufacturing Operations

Regularly scheduled maintenance and attention to detail are crucial for ensuring the longevity and efficiency of these systems. Pallet-based modular conveyors used in flexible manufacturing provide a wealth of benefits in just about any assembly operation. Suitable for applications ranging from small electronic parts assembly to large appliance manufacturing, automotive drivetrain and even medical-device assembly, […]

11:07 pm
February 18, 2015
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Boosting Your Bottom Line: Keeping Your 2015 Motor Resolution

By Walker Larsen, Program Manager, Consortium for Energy Efficiency (CEE) Every January 1, many of us pledge to turn over a new leaf by making New Year’s resolutions. A good one for those in industry to have made this year would be to boost their bottom lines by resolving to better manage their electric motor-driven systems and save energy […]

7:27 pm
November 4, 2014
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Energy Management: Where to Begin

By Jenna Overton, Industrial Program Associate Consortium for Energy Efficiency (CEE) “Strategic Energy Management” seems to be the new buzz term for industrial and commercial businesses that want to boost their bottom lines and reduce their environmental footprint through continuous energy improvements. Unfortunately, implementing a corporate energy-management program, as described in ISO 50001, can be […]

10:02 pm
August 1, 2014
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Dealing With Motor Failures: Common Causes and Solutions

Protecting motor bearings and windings is the first step in preventing motor failures. By Thomas H. Bishop, P.E., Electrical Apparatus Services Association (EASA) If you want to make a plant manager’s day, just say: “Production’s down because a motor failed.” Fortunately, such situations can usually be overcome with some relatively simple techniques and straightforward solutions […]

6:14 pm
August 1, 2014
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Motor Decisions Matter: Good Repair Practices Preserve Efficiency & Budgets

By Jenna Overton, Industrial Program AssociateConsortium for Energy Efficiency (CEE) Just like a linchpin holds a wheel on an axle, repair-or-replace decisions are crucial to your motor-management plan. In some cases, it’s more cost-effective to repair a motor, even when a newer unit might be more efficient. Just because a motor has been repaired does […]