AC DRIVES
Basic Properties,Terminology and Theory
What is an AC Drive?
An AC Drive is an electronic device that converts a fixed frequency and voltage to an adjustable
frequency and AC voltage source.
It controls the speed, torque, horsepower and direction...
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AC DRIVES
Basic Properties,Terminology and Theory
What is an AC Drive?
An AC Drive is an electronic device that converts a fixed frequency and voltage to an adjustable
frequency and AC voltage source.
It controls the speed, torque, horsepower and direction of an AC
motor.
AC Drive is also a term used for an AC inverter and is sometimes used to describe a particular
section of an AC drive.
The section uses the DC voltage from a previous circuit stage (DC Bus) to produce
an AC current or voltage having the desired frequency.
AC Drives are also referred to as Variable Frequency Drives (VFD s)
or Adjustable Speed Drives (ASD s).
These drives are gaining in
popularity due to the energy savings that can be obtained related
to the AC technology.
In addition, AC motors are simpler than DC
and usually an "off-the-shelf" item compared to DC motors.
Advances in technology have made the size, cost, reliability and
performance of AC drives very appealing in industrial variable speed
applicat
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