What is a VFD| Types- Advantage – Application| How Does a VFD Work?

Introduction: A Variable Frequency Drive (VFD) controls the speed of a motor, specifically a three phase motor. To better understand a VFD, let’s examine the motors they control. Most commercial HVAC systems require powerful motors, and often operate on a three phase power (The standard method for electric power distribution systems because of its efficiency). …

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