Page 681 - IPD Product Catalog V17

Variable Speed Drives

ABB VARIABLE SPEED DRIVE ACCESSORIES

Additional Options Available

du/dt filters

du/dt filtering suppresses inverter output voltage spikes and rapid voltage changes that stress motor
insulation. Additionally, du/dt filtering reduces capacitive leakage currents and high-frequency
emissions from the motor cable as well as high-frequency losses and bearing currents in the motor.
The need for du/dt filtering depends on the motor insulation. For information on the construction of the
motor insulation, consult the manufacturer. More information on the du/dt filters can be found in the
drives hardware manual or contact customer service.

Sine filters
4

Sine filters are low-pass filters that suppress the high frequency components of the drive output.
A sine filter consists of single- or three-phase reactors and delta- or star connected capacitors. The sine
filter provides true sinusoidal voltage waveform at the drive output by suppressing the high frequency
voltage components of the drive output. Suppression of the high frequency voltage components is
needed when extra-long motor cables are used, there is a step-up transformer between the drive and
a motor, or when a drive is installed with an old direct-on-line motor.

AC motors

ABB’s low voltage AC motors are designed to save energy, reduce operating costs and minimise
unscheduled downtime. General performance motors ensure convenience, while process performance
motors provide a broad set of motors for the process industries and heavy-duty applications.

- Contact customer service for the complete range of optional accessories and complementary product solutions.

1300 556 601 | ipd.com.au | V17-R05 681