Transcription of Output Filters Design Guide - Danfoss
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Output Filters Design Guide - Danfoss
MAKING MODERN LIVING POSSIBLE. Output Filters Design Guide VLT AutomationDrive FC 300. VLT AQUA Drive FC 200. VLT HVAC Drive FC 100. Contents Output Filters Design Guide Contents 1 How to Read this Design Guide 3. Abbreviations 3. 2 Safety and Conformity 4. Safety Precautions 4. CE Conformity and Labelling 4. 3 Introduction to Output Filters 5. Why use Output Filters 5. Protection of motor Insulation 5. The Output Voltage 5. Reduction of motor Acoustic Noise 7. Reduction of High Frequency Electromagnetic Noise in the motor Cable 8. What are Bearing Currents and Shaft Voltages? 9. Mitigation of Premature Bearing Wear-Out 9. Measuring Electric Discharges in the motor Bearings 10. Which Filter for which Purpose 12. dU/dt Filters 12. Sine-wave Filters 14. High-Frequency Common-Mode Core Kits 16. 4 Selection of Output Filters 17. How to Select the Correct Output Filter 17. Product Overview 17.
motors when fed by frequency converters, 500V motors. • IEC 60034-25 – limit for converter rated motors: curve A is for 500V motors and curve B is for 690V motors. • NEMA MG1 – Definite purpose Inverter Fed Motors. If, in your application, the resulting Upeak and tr exceed the limits that apply for the motor used, an output filter should
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