Motors and Drives

Courtesy: Interact Analysis
Motors, Drives July 14, 2021

Drive suppliers facing supply chain issues, semiconductor shortage

Motor and drive suppliers are rebounding from COVID-19, but are not out of the woods yet and are facing major supply chain issues and a semiconductor shortage.

By Brianna Jackson
Motors, Drives June 29, 2021

US Department of Energy issues final rule for testing small electric motors

The US Department of Energy (DOE) has issued rulemaking on test procedures for small electric motors for more than a decade.

By Thomas H. Bishop, P.E.
Courtesy: Koffel Associates
Motors, Drives February 19, 2021

Top 5 Consulting-Specifying Engineer articles: February 12-18, 2021

Read the best articles from the past week. Choosing between an ECM and VFD, NFPA 101 and COVID-19, NEC changes, integrating a BAS and data center metrics.

By Chris Vavra
Courtesy: Johnston, LLC
Motors, Drives February 1, 2021

Consulting-Specifying Engineer most-viewed articles, January 2021

Read the best articles in January 2021 including: Choosing between an ECM and VFD, NFPA 70-2020 changes, NEC chances and more.

By Chris Vavra
Courtesy: Yaskawa America Inc.
Motors, Drives January 7, 2021

How to choose between an ECM and a VFD

While each has its place in HVAC applications, electronically commutated motors and variable frequency drives have important differences in simplicity, flexibility, cost and other factors

By Larry Gardner
Courtesy: Toshiba International Corp.
Motors, Drives November 2, 2020

How to match drives (VFDs, VSDs) to the motor

Size a variable-speed drive (VSD) for the application, and ask if a general-purpose drive will do or if more embedded intelligence is needed. Do you need a VSD, variable frequency drive (VFD) or adjustable speed drive (ASD)? (Trick question)

By Joshua Jagnanan
Courtesy: Yaskawa America Inc.
Motors, Drives July 1, 2020

Top 5 VFD parameter changes explained

Programming variable frequency drives (VFDs) to fit most industrial applications require only the most basic settings to operate the motor. Understand these 5 VFD parameter changes to optimize VFD programming to fit most motor-drive applications.

By Christopher Jaszczolt
Courtesy: New Products for Engineers, CFE Media and Technology
Motors, Drives May 17, 2020

10 essential maintenance and troubleshooting tips for VFDs

A properly maintained variable frequency drive (VFD) can provide decades and cost-effective service. Making VFD inspections and maintenance part of facility oversight can improve outcomes.

By Lori Wade
Figure 1: At the Gwinnett County (Georgia) Department of Water Resources F. Wayne Hill Water Resource Center, the pipe gallery of the membrane process area is shown. The pumps are the permeate pumps, which are used to pump water from the from the tanks through the membranes. Courtesy: CDM Smith
Motors, Drives February 21, 2020

Top 5 Consulting-Specifying Engineer articles: February 14-20

Read the best articles from the past week. VFDs, NFPA 20 fire pumps, NEC 2017 changes, mergers and acquisitions, and designing circuit interrupters.

By Chris Vavra
Motors, Drives January 15, 2020

When are VFDs essential?

Engineers should understand variable frequency drive technologies, and the key considerations for designing a VFD to control a motor

By Shreeram Srinivasan, CDM Smith, Chennai, India; and Bernard Pettiford, PE, CDM Smith, Atlanta