Danfoss VLT AHF 005

Contents
1 Introduction
4
1.1 Purpose of the Design Guide
4
1.2 Intended Use
4
1.3 Organization of the Design Guide
4
1.4 Abbreviations, Symbols, and Conventions
4
1.4.1 Abbreviations 4
1.4.2 Conventions 5
1.5 Document Version
5
1.6 Approvals and Certications
5
1.6.1 CE Conformity and Labeling 5
1.6.2 CE Mark 5
1.6.2.1 Low Voltage Directive 6
1.6.2.2 EMC Directive 6
1.6.2.3 Machinery Directive 6
1.6.2.4 ErP Directive 6
1.6.3 UL Compliance 6
1.7 Safety
7
1.7.1 General Safety Principles 7
1.7.2 Qualied Personnel 7
2 Introduction to Harmonics and Mitigation
9
2.1 Harmonics and Mitigation
9
2.1.1 Linear Loads 9
2.1.2 Non-linear Loads 9
2.1.3 The Eect of Harmonics in a Power Distribution System 11
2.2 Harmonic Mitigation Standards and Requirements
11
2.2.1 Application-specic Requirements 11
2.2.2 Harmonic Mitigation Standards 12
2.3 Harmonic Mitigation
13
3 Basic Operating Principle of the AHF
14
3.1 Operating Principle
14
3.1.1 Power Factor 15
3.1.2 Capacitive Currents 16
3.2 Energy Eciency
16
3.2.1 Introduction to Energy Eciency 16
3.2.2 IE and IES Classes 17
3.2.3 Power Loss Data and Eciency Data 17
3.2.4 Losses and Eciency of a Motor 18
3.2.5 Losses and Eciency of a Power Drive System 18
Contents Design Guide
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