Dave Wilson, Editor, writes:
We see from your search that you're looking for information on the term "Variable Speed Control",
and we have a large number of manufacturers' news releases and technical articles here on Engineeringtalk which will be of interest.
Let me be your guide.
Start with
the news release Motors and drives make cuts for the NHS from
WEG Electric Motors (UK), which we summarised at the time by saying "Over 70 WEG electric motors and variable speed drives have been installed at the two major London healthcare sites".
A couple of weeks before,
we featured the news release DC gearmotor powers in on 12V supply from
Midwest Motion Products: "Compact and lightweight DC gearmotor requires just 7.2A at 12V DC to generate its full load torque of 10Nm".
In October 2007, we covered the news from Deritend Group
concerning its CFW09 variable speed drives
- take a look at Drives improve hospital efficiency
which says: "High-efficiency EFF1 motors and CFW09 variable speed drives from WEG were specified for Hammersmith Hospital's NHS Trust".
Take a look also at the news release from Ametek Technical and Industrial Products, DC motors take Hall sensors onboard,
as well as Air handling units save airport 1,000,000kWh from Danfoss Motion Controls,
and Brushless blowers use electronic drive controller from Ametek Technical and Industrial Products.
See also:
Variable-speed drive range extends to 11kW
(January 2007)
The Varmeca is arguably the most versatile and convenient way for OEMs and machine builders to reap the rewards of true variable speed control in a wide range of common applications
HVAC drives cut the cost of air-con
(November 2006)
Variable speed drives bring huge energy savings at Belfast International Airport
Speedy solenoid valves take control offshore
(November 2006)
High-flow high-speed EExd NAMUR series solenoid valves are designed for use in hazardous area/extreme environment applications
Cased pump ranges are expanded
(September 2006)
A new sales folder includes information on the IP20 and IP66 cased pumps range which incorporate Autoclude's Easy Tube Load pump for quick tube change
Pumps are protected against ingress
(September 2006)
IP40 cased pumps cover both scientific and heavy duty industrial applications
AC drives add flexibility to pressing tasks
(August 2006)
Lenze smd drives have been used to provide accurate variable speed control for the world-famous Electrolux range of industrial ironing machines
Drive cuts costs and saves energy at dairy
(March 2006)
Following the installation of a variable speed drive on an 11kW boiler forced draft fan, a dairy has achieved energy savings of 47,000kWh a year and reduced carbon emissions by 5.52 tonnes per year
Pump replacements increase energy savings
(March 2006)
Energy savings of 50%, less downtime and cheaper maintenance followed a process water plant modernisation and pump replacement project for manufacturer of personal care products
Smart move shifts pump production to the UK
(January 2006)
The production of the Verderflex Smart peristaltic tube pump is being moved from its present location in the Verder group in Germany to the UK
Geared motors excite packaging machine makers
(October 2005)
Available from Lenze, the Panasonic G-series range of geared motors covers powers from 6 to 90W
Arduous duty fans set for deployment in Hong Kong
(October 2005)
Halifax Fan has won a contract to supply four 200kW and four 75kW ID fan systems to Hong Kong and China Gas Co
Variable frequency drive provides precise control
(July 2005)
SmartFan Stratus is an economical, yet highly versatile variable frequency drive that provides precise variable speed control of single- and three-phase fans, motors and pumps
Geared motors take disconnect clutch onboard
(July 2004)
The GKK series from Lenze are geared motors with a manually operated clutch that disconnects the motor and gears from the output shaft
Variable speed control for high-power applications
(June 2004)
Rated from 132 to 250kW at 400 and 480V, the Allen-Bradley PowerFlex 700H AC drive meets OEM and end-user demands for precise, reliable and cost-effective motor control in high-power applications
Modular geared motors promise cost savings
(May 2004)
The new Hydromec range of helical geared motors can deliver significant cost savings in light to medium duty applications such as conveyors, feeders, pumps, mixers and food processing machinery
Steppers and servos take on drives and controls
(December 2003)
Cetronic now offers both hybrid stepper motors and brushless DC servomotors with built-in drive and control capability
Pneumatic system is cost-effective machine guard
(October 2003)
A novel obstruction detection system based on technology transfer from the rail industry has great potential as a cost-effective solution for machine guarding and operator safety
Drives help feed hungry mouths
(July 2003)
Variable speed control has revolutionised the preparation of animal feed at a cattle ranch in South Africa
Controllers will complement motor range
(June 2003)
UK manufacturing companies Astralux Dynamics and Electric Motor Developments have signed a formal and exclusive supply agreement for electric motor control equipment to compliment the EMD range
Brushless motor takes drive onboard
(May 2003)
Precision Motor Technology (Premotec) has chosen the Drives and Controls Exhibition at the UK NEC for the worldwide launch of its latest BL70 brushless motor with integrated drive
Decentral motor switch is soft starter and stopper
(May 2003)
The DMS 300 decentral motor switch is the right choice for soft starting and stopping a motor in either direction when no variable speed control is required
Vector drive optimises motor speed control
(April 2003)
A new high-end AC drive provides closed loop vector control of motor speed, combined with Windows-based configuration and hardware modularity including plug-in industrial networking
H and S solution saves money as well
(February 2003)
Linpac Automotive of Scunthorpe identified a health and safety risk associated with controlling the outlet dampers on their spray booth fans and decided to fit variable speed control
Universal drive meets special requirements
(November 2002)
A new design of airport baggage carousels by Leicester-based market leader Alstec Systems Technology offers major user benefits of quiet running and reduced maintenance
Tools get to grips with tubes and pipes
(October 2002)
Orbimatic is now offering the Otto Tools range of tube and pipe cutting, facing and preparation equipment
Drive puts new life into old compressors
(August 2002)
The new Retrofit VSD variable speed drive from EnergAir will allow users of compressed air to reduce energy consumption without the capital outlay required by a new air compressor
Bulletin covers all-inclusive servos
(April 2002)
A free updated and expanded six-page product bulletin from Pittman profiles Elcom ST (Series N2300) slotted brushless DC servo motors
Actuators have variable speed control
(March 2002)
MaxJac is a new line of compact actuators from Thomson Micron that deliver variable speed control for thrust applications
Dosing pump range extended with all-metal version
(September 2001)
Milton Roy's popular 'G' series of mechanically actuated diaphragm pumps has recently been extended following the introduction of the new all-metal GM version
Sensorless vector drives control dock gates
(February 2001)
The Manchester Ship Canal Company has reduced maintenance costs and improved efficiency of dock gates by switching from a two speed motor control arrangement to Eurotherm variable speed control
The merits of new-technology large motors
(February 2001)
Technical advances give Large Brushless Drive Systems significant advantages over conventional DC or AC induction motors, as Ed Lee describes in this article
Frequency inverters cut building running costs
(September 2000)
Adapting building services management to individual needs can significantly reduce energy consumption and running costs, as David Randall of Lenze explains
New drives tailored for HVAC applications
(June 2000)
Hitachi's new L300P drives have been specially designed to deliver variable speed control to HVAC applications
Why soft starters make sense
(June 2000)
Soft starters provide a properly engineered means of powering AC motors in fixed speed applications as John Symonds of power conversion specialists Reo (UK) Limited explains