Application: Pumps & Fans Control (Industry/Infrastructure)
Pains & drivers
How can a customer manage energy more efficiently?
Solutions or architectures used in the application
A) Solution without Drive
The motor turns at a fixed speed according to the network frequency and the number of poles.
Example : 3600 Rpm for 60 Hz
Motor 2 poles
The only way to adjust the Flow is a restriction device (damper) which generates losses.
B) Energy Saving Solution with Drive
The Drive, which is also called a frequency inverter, lets you vary the frequency and therefore the motor speed, too.
The Flow is directly proportional to the speed.
The damper or valve are no longer required.
C) Energy Consumption with and without Drive
Example for Fan Application
Variable speed drive
50% of energy saving at 80% of the nominal flow
Example for Pump Application
30% of energy saving at 80% of the nominal flow