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Smart VFDs for a Smart BACnet Network

A building automation system (BAS) is only as smart as the devices that are connected to it.

The Fundamentals of Matrix Variable Frequency Drive Technology

Providing cost, space, and energy efficiency for VFD applications.

Presentation: Variable Frequency Drives (VFDs) and Harmonics in HVAC Applications

Presentation covers the basics of design of conventional variable speed drives and the newer matrix design and their differences with regard to harmonics. The advantages and disadvantages of various means of harmonics mitigation along with the requirements of IEEE 19-2014.

Z1000U Matrix Drive Named Winner of Product of the Year Award

Z1000U Matrix Drive has been named the winner of the 2016 Consulting-Specifying Engineer’s "Product of the Year Award".

How to Handle Imbalances from Light Loads on VFDs

Input current imbalances happen when a variable frequency drive (VFD) with a full-bridge rectifier operates under lightly loaded conditions.

Project profile: Chillers retrofit at office buildings

Prepackaged chillers retrofit cut energy costs by 30% and reduced required maintenance and extending operating life at Duke Realty Corp.’s 19-story office building in Clayton, Mo.

The Skinny on Reactors for VFDs

Reactors for AC drives are available as either AC reactors or DC reactors (DC link chokes).

The Skinny on Reactors for VFDs

Reactors for AC drives are available as either AC reactors or DC reactors (DC link chokes).

Redundant VFDs and Fan Arrays in Critical Operations

Understand how to use variable frequency drives in fan arrays to enhance the airflow in mission critical facilities

Spool Changer Gets Automated

Motion-control technology helped automate spoolchanging operations on machines that coil tubing, hose, wire, and other materials.

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