Transcription of 63-7062 - Variable Frequency Drive (VFD) - Kele
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63-7062 Variable Frequency Drive (VFD)APPLICATION 3 When Installing this .. 3 Inspection Procedure .. 3 Monitor the LED .. 3 INTRODUCTION .. 4 VFD Types .. 4 Why Buy a VFD .. 4 Where are VFD Applications .. 4 Benefits 5 VFD 5 Energy Costs .. 5 VFD 5 What s 5 User Benefits .. 6 MOTOR FUNDAMENTALS .. 7 Advantages .. 7 Disadvantages .. 7 Voltage and Current Waveform Examples .. 8 Differences Between Star Delta and Delta Star .. 12 Load Types .. 14 Power 15 Useful Formulae .. 16 VFD FUNDAMENTALS .. 16 Braking Resistor .. 17 VFD Voltage to Frequency Ratio.. 18 Charging Resistor .. 19AC Line 19 Motor and VFD Tests .. 20 INSTALLATION 24 General Guidelines .. 24 Surveying .. 24 VFD Location: Enclosures and Ventilation .. 24 EMC Wiring and RFI Filters .. 25 Line 26 RFI .. 26 Sources Of Emissions .. 26 Routes for Emissions.
3 63-7062 SAFETY When Installing this Product... 1. Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition.
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