Inverters
Variable Frequency Drives (Inverters)
Adjustable frequency drives (also known as variable frequency drives) adjust a motor's speed to closely match output requirements, resulting in a typical energy savings of 10 to 50 percent.
Inverters, or variable speed/frequency drives, are used for running AC motors and providing variable speed. They are versatile devices that can be used in a wide range of applications, from simply running a motor and allowing a user to vary the speed, to complicated set-ups with sensors and timers that affect the speed.
Typically Inverters have been designed for fan & pump (light duty) applications or normal/heavy duty. Many are dual rated, with one set of ratings for both light and heavy duty.
As such you simply need to choose the unit that has a current rating at least as much as your motor
Features
1 - Simple circuit & small size
2 - Low cost
3 - Control in torque
4 - Used for more than one motor with different data
5 - Provide motors protection
a - Overload protection
b - Over current protection
c - Over &under voltage protection
d - Phase failure protection
e - Over temperature
6 - Control in output voltage
7 - Control in acceleration& deceleration time
