Energy Efficient Appliance Export Businesses in Canada

Greenfield Hydroponics Systems Inc. - Meal Time Stoves - Variable Frequency Drive - MLD ConsulTech International -

Greenfield Hydroponics Systems Inc.

Manufacturers of U. S. & Canadian patented Solar, wind, 110 / 220 volt powered portable greenhouse to grow fodder, broccoli sprouts, bean sprouts (commercial production and emergency food/crop supply), herbs, medicinal plants, leafy vegetables, mushrooms, seedlings for commercial crops and reforestation, Turnkey projects for meat production, dairy and other commercial crops, Grower support, after sales service, Research & Developments. Ground source heat pump, Air to air heat/cooling recovery system, solar cooker, solar thermal water heater, biomass gas production equipments, solar photo voltaic powered fishpond equipments, solar & wind powered milk holding tanks for rural areas, Micro Finance projects Helping to combat drought & starvation...

Meal Time Stoves

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.

MLD ConsulTech International

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