Source Guides Renewable Energy Renewable Energy Businesses Renewable Energy Businesses in the World by Product Type Appliance Businesses in the World Energy Efficient Appliance Businesses in the World Energy Efficient Appliance Businesses in the World by Business Type Energy Efficient Appliance Manufacturers in the World Energy Efficient Appliance Manufacturers in the World by Business Name

Energy Efficient Appliance Manufacturers in the World by Business Name Starting with V

Click on the first letter of the business name you are looking for ...

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Business Names Starting with V


Request Information or a Price Quote from All Businesses Listed Below

Request Information or a Price Quote from All Businesses Listed Below

Variable Frequency Drive - Variable Frequency Drives - Variable Speed Drives - Volontario SOLARE -

Variable Frequency Drive

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

Variable Frequency Drives

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 â�" 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

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

Volontario SOLARE

SOCO project and produce in Italy special solar panels for mobile applications and solar project for all applications in the world

Business type: manufacturer, R&D, Solar Project
Product types: solar charger OASI per cellular phone, satellite phone, notebook - pv solar light - pv solar TVCC.
Service types: special solar panels
Address: Via D. L. Cantini 64, Agrate, Monza e Brianza Italy 20864
Telephone: 3357076127
FAX: 00
Web Site: http://www.soco.it
E-mail: Send Email to Volontario SOLARE