VFD 101

What does VFD stand for

• Variance Frequency Drive

• Variable Frequency Drive

What are some common applications of VFDs?

• Control of generators, transformers and capacitors

• Control of fans, pumps and compressors

• Control of heaters, lights and air conditioners

Which is not a main component of a VFD?

• Rectifier

• Transformer

• Inverter

• DC link

What type of motor is usually used in a VFD system?

• A single phase induction motor

• A synchronous motor

• A three phase induction motor

What is a variable frequency drive?

• A type of motor controller that drives an electric motor by varying frequency and voltage of its supply

• A type of motor controller that drives an electric motor by varying current and resistance of its power supply

• A type of motor controller that drives an electric motor by varying the power factor and impedance of its power supply