Search results with tag "Speed drive"
AC Motor Speed Control - University of Alabama
www.me.ua.eduVariable speed AC Motor adjustable speed drives are known as inverters, variable frequency drives (VFD) , or adjustable speed drives (ASD). Common ways to vary AC frequency: Six-step inverter Pulse-Width-Modulation Vector Flux
Collection Systems Technology Fact Sheet: Sewers, Lift Station
www3.epa.govVariable speed pumping is often used to optimize pump performance and minimize power use. Several types of variable-speed pumping equipment are available, including variable voltage and frequency drives, eddy current couplings, and mechanical variable-speed drives. Variable-speed pumping can reduce the size and cost of the wet-
Eaton Variable Speed Drive Pump Solutions
www.eaton.comEATON Variable Speed Drive Pump Solutions E-PUIO-BB001-E April 2015 3 Reduced energy cost and consumption Eaton’s Variable Speed Drive and Pump Systems can help you cut energy usage by up to 70% depending on the machine duty cycle.
MSC-3 Instruction Manual - Variable Speed Drives
www.zener.com.auA Zener Drive for Every Application The ZENER MSC-3 series Variable Speed Drive is suitable for all types of loads, producing greater motor torque over the full speed range with ZENER’s unique ‘Flux Plus’ control algorithm.
ABB drives - Technical guide No. 4, Guide to variable ...
library.e.abb.comdifferent variable speed drives (VSD) and how they are used in industrial processes. Special attention has been given to electri-cal VSDs and especially to AC Drives. The guide tries to be as practical as possible. No special know-ledge of VSDs is …
Schneider Electric Altivar 32 Programming Manual
stevenengineering.comfor Selection, Installation and Operation of Adjustable-Speed Drive Systems.” DANGER HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH • Read and understand this manual before installing or operating the Altivar 32 drive. Installation, adjustment, repair, and maintenance must be performed by qualified personnel.
160 SSC Variable Speed Drive to PowerFlex …
literature.rockwellautomation.com4 Drive Selection Considerations Selecting a PowerFlex to use as a replacement in a 160 SSC application needs to take into account some of the differences and features between the PowerFlex 4M, 4, and 40.
PRODUCT QUICK REFERENCE GUIDE - Leeson-Direct
www.leeson-direct.comADJUSTABLE SPEED DRIVES SCR, PWM, Regenerative & Low Voltage DC Controls. AC Control Families include: Micro Series • 115 Volt, 230 Volt and 460 Volt input options • 1/4–150 HP ratings • IP20, IP31 & IP65 enclosure protection • English readout display SM & SM–Plus Series • 115 Volt, 230 Volt and 460 Volt input options
MODEL YK (STYLE G) R-134a or R-513A ... - Johnson Controls
cgproducts.johnsoncontrols.comable Speed Drive (optional). In operation, a liquid (water or brine to be chilled) flows through the evaporator, where boiling refrigerant absorbs heat from the liquid. The chilled liquid is then piped to fan coil units or other air conditioning terminal units, where it flows through finned coils, absorbing heat from the air.
STUDYING THE VARIABLE REFRIGERANT VOLUME (VRV) …
inis.iaea.orgVariable Refrigerant Flow (VRF) that uses variable refrigerant flow control to provide customers with the ability to maintain individual zone control in each room and floor of a building. The compressor unit is controlled by a variable-speed drive, which may operate more efficiently than conventional compressors of similar size.