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ecoZone International inc. - Solareagle EarthRight Products - Variable Frequency Drive -

ecoZone International inc.

Solareagle EarthRight Products

Solareagle packaged systems and components for off grid and grid intertie systems utilizing wind water and solar energy will put you in the 21st century at the forefront of energy independence.

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.

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Momentum Technologies LLC

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