Motors

How Precise Are Motor Nameplate Ratings?

Wed, 12 Jun 2013 20:16:00 +0000

By Thomas H. Bishop, P.E.

Correct interpretation of five operating parameters for NEMA, IEC induction motors

Bad Practices, Part 4

Tue, 28 May 2013 17:22:00 +0000

Bad maintenance practices tend to sneak into the way things get done. Here are two more items to guard against:

Bad Practice #6 — Leaving Motor Starters Out of Motor Preventive Maintenance Programs

Is a Failing Bearing Causing the Vibration?

Wed, 15 May 2013 19:36:00 +0000

By Eugene Vogel, Electrical Apparatus Service Association

Troubleshooting tips to help you identify and remedy bearing vibration

NEC Rules for Fire Pumps

Tue, 16 Apr 2013 20:30:00 +0000

By Mike Holt, NEC Consultant

Understanding the circuit protection requirements of Art. 695 and why they’re different from other parts of the NEC

Sizing Circuit Protection and Conductors — Part 3

Tue, 16 Apr 2013 20:05:00 +0000

By Mark Lamendola, Electrical Consultant

Why you size motor circuit conductors and protection differently than you do for circuits of other types of loads

ABB Automation & Power World 2013

Wed, 27 Mar 2013 17:42:00 +0000

From from March 25-28, EC&M's Editor-in-Chief Mike Eby will be in Orlando participating in ABB Automation & Power World 2013

Motors Shipments Improved in Fourth Quarter of 2012

Tue, 19 Mar 2013 21:01:00 +0000

Demand for motors increased in the fourth quarter 2012 as NEMA’s Motors Shipments Index grew 6.5% from the previous quarter.

NEMA Reactivates Standard for Polyphase Induction Motors for Power Generating Stations

Wed, 13 Mar 2013 17:06:00 +0000

NEMA has reactivated and published ANSI/NEMA C50.41, "American National Standard Polyphase Induction Motors for Power Generating Stations"

IEEE Announces Call to Revise Guide for Induction Machinery Maintenance Testing and Failure Analysis

Mon, 14 Jan 2013 17:22:00 +0000

The IEEE P1415 Working Group announces a call for participation to review and revise IEEE 1415-2006, “Guide for Induction Machinery Maintenance Testing and Failure Analysis”

President Obama Signs Energy-Efficiency Bill into Law

Tue, 18 Dec 2012 21:06:00 +0000

President Obama signed into law HR 6582, “American Energy Manufacturing Technical Corrections Act”