Wind Energy Maintenance and Repair Businesses in the World by Business Name Starting with V
Business Names Starting with V
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Every variable frequency drive (VFD) on the market has an input rectifier. Every variable frequency drive on the market creates harmonic currents. Active rectifiers are used in active front end VFD drives to reduce the harmonic currents with the emphasis on reduce, not eliminate. Almost every variable frequency drive uses switching elements in the output to create a PWM output pattern that causes a sinusoidal current to flow in the AC motor. As such, the potential for EMC and EDM is high with all variable frequency drives. Before you argue the merits of variable frequency drives (VFD), you need to get a better understanding of some of the fundamentals that we are referring to.
- Business type: manufacturer, wholesale supplier, exporter, electric utility
- Product types: wind energy system components (large), energy efficient appliances, energy efficient homes and buildings, packaged power systems, power conversion equipment, water pumps.
- Service types: installation, engineering, project development services, maintenance and repair services
- Address: 1536 Kebet Way, Port Coquitlam, British Columbia, Canada V3C 5M5
- Telephone: 604-421-2620
- Web Site: http://www.variablefrequencydrive.org
- E-mail: Send Email to Variable Frequency Drive
In HVAC variable frequency drives add energy efficiency and precise control for fans and pumps. The variable frequency drives offer demand control for airflow and water in chilled water systems, hot water systems, and air handling systems. Variable frequency drives require inverter duty motors and variable frequency drives can be purchased for three phase and single phase applications although the vast majority of variable frequency drives are used in commercial three phase applications. Electrical system âÛ" if variable frequency drive >25% of load, must take steps to mitigate; Frequent/constant running at full speed decreases efficiency and life of variable frequency drive; Alternative/Innovative Uses of variable frequency drives; Use to ...
- Business type: manufacturer, exporter, electric utility
- Product types: air cooling system components, energy efficient appliances, home automation, waste to energy systems, wind power plants, hybrid power systems.
- Service types: installation, engineering
- Address: Wattle Street Asquith NSW, NSW, Austria 2077
- Telephone: +61 2 9113 0618
- Web Site: http://www.vfds.org/
- E-mail: Send Email to Variable Frequency Drives
Variable speed drives are ONLY for 3 phase motors, any method to speed control an induction motor. Variable speed drive with ONLY single phase input can drive capacitor start/run single phase motors. Variable speed drive operating from single phase have output voltage on each phase equal to input voltage. Higher capacity single phase motors with separate high torque/high current starting winding operated by centrifugal switch can not be used with variable speed drive. However a triac speed controller may work, as this could duty cycle the AC sine wave form. Try an off the shelf light dimmer and see if this can control the desired speed range of the fans. If this works, then some circuit research/lab work could produce a circuit that takes 0...
- Business type: manufacturer, wholesale supplier, exporter
- Product types: home automation, power conversion equipment, power conditioning equipment components, wind power plants, water pumps, energy efficient appliances.
- Service types: consulting, installation, engineering
- Address: No. 2 Xuwu Village Xixiang baishi, Bao'an District, Shenzhen, Guangdong China 518000
- Telephone: +8675528480241
- Web Site: http://www.vsdrive.com
- E-mail: Send Email to Variable Speed Drives
We are in charge of turn key solutions for wind farms/turbines from idea-2-running wind turbine/farm and after with whole maintenance/repairs for small and large wind turbines. Main activity is in Poland, but we are open to other markets.
- Business type: exporter, importer, distributor
- Product types: wind turbines (large), wind turbines (small), wind power plants, Wind turbines monitoring systems SCADA.
- Service types: consulting, installation, construction, project development services, research services, site survey and assessment services, contractor services, maintenance and repair services
- Address: Tymienieckiego 20, Lodz, Lodz Poland 90-347
- Telephone: +48-42-236-7565
- FAX: +48-42-663-9653
- Web Site: http://www.veo24.eu
- E-mail: Send Email to Vent Energy Operator Sp. z o. o.
Vergnet is one of the world's leading manufacturer of handpumps and wind generators. It is your partner in water and energy for isolated or rural areas.
- Business type: manufacturer, engineering
- Product types: wind energy systems (large), wind energy systems (small), wind turbines from 5 to 275 kW (diameter from 5 to 32 m), water pumping systems, water pumps.
- Address: 160 rue des Sables de Sary, 45770 Saran., France
- Telephone: +33 2 38523970
- FAX: +33 2 38523583
- Web Site: http://www.vergnet.fr
- E-mail: Send Email to VERGNET S.A
Vista Eco Solutions offers energy efficient and water management solutions through various quality solar and wind products to residential and commercial customers. Vista Eco Solutions provides the latest technologies in solar thermal water heating systems, water desalination and treatment, solar photovoltaic energy systems for rooftops, solar parks and street lighting. Vista Eco Solutions is the authorized distributor in UAE, Qatar, Saudi Arabia and Oman of Austrian Gasokol GmbH and Energetica Energietechnik GmbH, Italian Sile S. p. A and CMG Solari and German Mage Water Management GmbH . We provide the state-of-the-art solar and wind products and the highest quality of full service turnkey projects including; planning, design, installatio....
- Business type: distributor
- Product types: photovoltaic systems, solar water heating systems, solar thermal energy, solar pool heating systems, solar street lighting & LED, wind turbines (small), Solar Thermal Desalination.
- Service types: consulting, design, installation, construction, engineering, project development services, contractor services
- Address: Regus Building, D- Ring Road, P. O. Box 32522, Doha, Qatar
- Telephone: +974 4423 1233
- FAX: +974 4423 1100
- Web Site: http://www.vista-eco.com
- E-mail: Send Email to Vista Eco Solutions
Vertical Wind Turbine Technologies, Llc
- Business type: energy
- Product types: wind energy systems (large), wind turbines (small), wind energy towers and structures (large), wind energy towers and structures (large), hydro energy system components (large), hydroelectric turbines (large).
- Service types: project development services, research services
- Address: P.O. Box 4577, Hilo, Hawaii USA 96720
- Telephone: 808-934-0803 or 352 795 1988
- FAX: 352 795 1988
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