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Application Note Sine wave filter solutions for motor ...

1 sine wave filter solutions for motor drive applicationsApplication Note21. Technical background 32. motor drives output phenomena 4 Excessive dv/dt 4 Peak- and overvoltage 5 Additional losses in the motor 6 Cable shields and parasitic earth currents 6 HF electromagnetic noise in the motor cable 7 Bearing currents 8 Acoustic motor noise 93. Output filter solutions for motor drives 10 dv/dt reactor 10 dv/dt filter 11 sine wave filter Symmetrical sine wave filter Sinus plus symmetrical and asymmetrical sine wave filter 144. sine wave filter selection 16 Current and voltage rating 16 Frequency 17 Required drives settings 18 Voltage drop considerations 205. Application examples 21 motor drive with long motor cable 21 motor drive with multiple motors in parallel 21 Retrofit installations with motor drives 21 LV motor drive with MV- motor / 22 step-down / step-up transformer Application 6. Mounting and installation guidelines 22 Important safety considerations 22 General Application notes 23 General installation notes 24 Mechanical mounting 25 Wiring and cabling 25 ContentNote: This document is in tended to support designers, installers, and Application engineers with sine wave filter selection, installation, Application and maintenance in motor drives order to get the maximum benefit out of the Schaffner filters, please also consult

the sine wave filters will be described in detail. 4 Motor drives (frequency inverters) are among the most widely used pieces of equipment for AC motor control. Nowadays, they are found in virtually every area of industry, in applications as diverse as pumps, air conditioning

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