VFD
-
Catching the Wave
Rather than just relying on static meter readings, capturing the waveform froma faulty drive can greatly aid in the diagnosis of VFD problems.
VFD | 01 October 2011
-
Belden Introduces 2000 Volt Variable Frequency Drive Cables
Belden added 2000 Volt VFD cables to its line of Variable Frequency AC motor drive cables. The cables are available in two forms, classic or symmetrical design. The Classic Design VFD Cables are similar to Belden’s other classic VFD cables. thi…
VFD | 07 October 2009
-
Qatargas LNG Uses Siemens VFD Drives
Siemens Energy and Automation recently participated in the successful completion of a liquefied natural gas (LNG) compressor train for the Qatargas 2 project. The LNG train uses Siemens Perfect Harmony Variable Frequency Drives (VFD). Siemens Perfec…
VFD | 14 July 2009
-
Danfoss VFDs Deliver 1,350 hp in 460 and 690 Vac
Danfoss Drives VLT Series Variable Frequency Drives are now available with power through 1350 HP in 460 and 690 VAC. F1 frame models deliver power up to 1050 HP in an 86.8 in. x 55.1 in. x 23.9 in. footprint, while F2 frame models deliver up to 1350…
VFD | 15 April 2008
-
Optimum Number of Pulses for a VFD
Variable frequency drives (VFDs) control the torque and speed of an ac motor in two ways. First, they control motor speed through the fact that synchronous ac motors try to lock onto the ac input waveform. Second, they match the power delivered to th…
VFD | 03 March 2008
-
Energy-Saving H2O Drive VFD from SJE-Rhombus
SJE-Rhombus has introduced the H2O Drive Variable Frequency Drive (VFD). The H2O Drive VFD is has integrated Advanced Pumping Software which will read the discharge pressure and adjust the pump speed to maintain a constant output pressure without th…
VFD | 26 November 2007
