| Feature |
Benefits
|
| Soft
starting |
Reduced impact on electrical
network means no penalties from utility
Reduced stress on motor, coupling
and load, giving extended life time
Unlimited number of starts per
hour
|
| Precise
speed and torque control |
Better product quality
improved cost of ownership
Better protection of motor (e.g.
stall protection and load)
Consistent product quality,
despite input power variations and sudden
load changes
|
| Wide
speed control range |
Improved efficiency compared
to traditional flow control methods e.g. damper
control, throttling
lower maintenance
|
| High
reliability and availability |
Reduced downtime
Improved process availability
|
| Low
audible noise |
Improved working environment
for operators
|
| Capability
for speed reversal / regenerative braking |
Desired torque during braking,
therefore better product quality
improved braking characteristics
Higher efficiency
|
| Flux
optimisation (motor flux automatically adapted
to load) |
Improved motor efficiency
Reduced motor noise
|
| Power
loss ride through |
Reduced number of drive trips
Better process availability
|
| Automatic
start (drive can catch a spinning load) |
Reduced waiting time
Reduced downtime
|
| Energy
saving |
AC drives can be
retroffied to standard induction motors, to
provide substantial energy savings |
