Variable-Frequency Drive

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Sep 3 2020
1. VFDs can wreck motor windings. VFDs control motors with a simulated sine\ wave known as pulse width modulation (PWM). The problem is that peak…
Old pumps.
Old pumps.
Sponsored
Sep 3 2020
Ypsilanti, Michigan is a city of 19,435 in Washtenaw County. Ypsilanti, or Ypsi as it is commonly referred, is six miles east of Ann Arbor, MI. …
Outside view of Baltic Avenue pump station.
Outside view of Baltic Avenue pump station.
Sponsored
Sep 1 2020
Atlantic City (NJ) Sewerage Company (ACSC), a private utility with 7500 connections in and around “The Boardwalk” casino district, keeps a keen eye…
Construction of “Station in the Round” in Sims Bayou.
Construction of “Station in the Round” in Sims Bayou.
Sponsored
Sep 1 2020
Sims Bayou begins near Missouri City, Texas, and meanders northeast until it reaches Buffalo Bayou. As a result of the Federal Flood Damage Reduction…
Two Flygt 3000 series wastewater pumps and two Godwin CD300M Dri-Prime pumps were installed at the Nancy Creek tunnel for the city of Atlanta while it cleared away sediment buildup in advance of heavy rains.
Two Flygt 3000 series wastewater pumps and two Godwin CD300M Dri-Prime pumps were installed at the Nancy Creek tunnel for the city of Atlanta while it cleared away sediment buildup in advance of heavy rains.
Sponsored
Aug 28 2020
Project The city of Atlanta faced a critical problem in 2013 when the city’s Nancy Creek Tunnel failed due to years of sediment buildup. The tunnel…
Three Godwin electric driven HL200 pumps with Variable Frequency Drives were installed to regulate bypass flow rate, and one Godwin critically silenced diesel driven HL200 pump was brought in as a redundant back-up.
Three Godwin electric driven HL200 pumps with Variable Frequency Drives were installed to regulate bypass flow rate, and one Godwin critically silenced diesel driven HL200 pump was brought in as a redundant back-up.
Sponsored
Aug 28 2020
The first sign of trouble in “America’s Hometown” came on December 19, 2015. Plymouth, Massachusetts is the celebrated site where the Pilgrims landed…
Bank of Godwin CD300M diesel driven pumps installed at one of the two major pump stations.
Bank of Godwin CD300M diesel driven pumps installed at one of the two major pump stations.
Sponsored
Aug 28 2020
The Cape Fear Public Utility Authority (CFPUA) in North Carolina engaged in a capital improvement project to help address their aging infrastructure…
Aug 4 2020
Founded in 1933, Flomatic is a diversified U.S. valve manufacturer producing valve products in sizes ranging from ¼" through 36", in various types…
May 20 2020
Variable speed drives have been used for more than 50 years to reduce electrical energy use. With the advance of Industry 4.0, the role of the drive…
Sep 14 2017
A.C. GoHz Power Supply Inc is a manufacturers-based online shop in AC power supply industry to provide solutions for changing regular grid power…
Sep 5 2017
A.T.O, Automation Technologies Online, is your source to buy industrial automation equipment/electronics/components from manufacturers directly. ATO'…
Feb 18 2013
Since 1963, Dart Controls has been designing and manufacturing some of the world’s most reliable variable speed motor drives, controls and…
May 7 2012
Danfoss VLT Drives has the combined strength of several Danfoss divisions focusing exclusively on motion control applications within the North…
Jan 9 2012
Danfoss VLT Drives is a manufacturer of high quality products, specifically designed for water and wastewater applications, including Variable…
Jan 9 2012
SJE-Rhombus® is a global provider of control solutions for water/wastewater pumping applications. With 6 locations worldwide, SJE-Rhombus has built a…
Mar 11 2011
The VARIOspeed variable-frequency drive (VFD) is designed specifically for pressure control applications. As the flow and head conditions change in…
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