AC Induction Motor Reviews

This devices are mainly used for governing the speed in the machinery. Two main causes of maintaining the rate of machinery by using variable speed drives are to regulate the process also to conserve energy. Though these drives are produced for process control, energy conservation is becoming its prime objective.

Many industrial processes need different speed to operate different products. We can save energy by controlling the speed of those processes. Since we are able to find the speed from the pre-set ranges, it's called the "adjustable" speed. This can be referred as variable speed because its output could be changed without undergoing any steps. These are purely mechanical variations.

Some advantages of using VSD are, they give smoother operation and acceleration control and enable you to choose different speed for each process, decrease operation for setup purposes, adjust rate of production, control torque, and compensate variables in changing process.

Distributor Woes

Beware of distributors who seem to only be interested in selling you the next latest AC or DC drive. There are so many fly-by-night companies, and many distributors don't know the first thing about the motor control industry. So the first key to success in your search for motor control drives is to select a distributor carefully. Find a company that cares for its customers and can give you the personalized customer help you need for installation and application of the products you purchase.

Uncontrolled speed
Very high starting current
Uncontrolled torque
Uncontrolled acceleration
No braking (stopping control)

The function of an AC inverter drive is to overcome these limitations.