I.S. EN 60146-2:2003

Foreword
1 Scope
2 Normative References
3 Definitions
   3.1 Functions of converters
   3.2 Types of converters
   3.3 Converter circuit components
   3.4 Important properties of converters and
        electronic valve devices
   3.5 Disturbances and electromagnetic compatibility
   3.6 Characteristics related to input and output
   3.7 Definitions of rated values
   3.8 Definitions related to cooling
   3.9 Definitions related to temperature
   3.10 Definitions related to tests
4 Additional Subscripts and Letter Symbols
5 Service Conditions
   5.1 Code of identification for cooling methods
   5.2 Environmental conditions
        5.2.1 Ambient air circulation
        5.2.2 Normal service conditions
        5.2.3 Unusual environmental service
               conditions and design considerations
   5.3 Electrical service conditions
        5.3.1 Electrical environment specification
        5.3.2 Unknown site conditions
   5.4 Character of the load
   5.5 Immunity requirements
        5.5.1 AC supply
        5.5.2 DC supply
        5.5.3 Load conditions, load unbalance
        5.5.4 Electrical unusual service conditions
               and performance requirements
6 Rated Values and Additional Characteristics
   6.1 General
   6.2 Rated values to be specified by the supplier
        6.2.1 Rated input values
        6.2.2 Rated output values
   6.3 Additional characteristics
   6.4 Marking
7 Tests
   7.1 General
        7.1.1 Classification of tests
        7.1.2 Performance of tests
   7.2 Test schedule for converter equipment and
        converter assemblies
   7.3 Test specifications
        7.3.1 Visual inspection
        7.3.2 Checking of auxiliary devices
        7.3.3 Insulation test
        7.3.4 Checking of the protective devices
        7.3.5 Light load and functional test
        7.3.6 Rated output test
        7.3.7 Overcurrent test
        7.3.8 Temperature-rise test
        7.3.9 Power loss determination
        7.3.10 Measurement of total harmonic
               distortion (THD) or total harmonic
               factor (THF)
        7.3.11 Measurement of power factor
        7.3.12 Measurement of output voltage
        7.3.13 Confirmation of output voltage
               adjustable range
        7.3.14 Output voltage unbalance test
        7.3.15 Confirmation of output frequency
               adjustable range
        7.3.16 Output frequency tolerances band test
        7.3.17 Checking of the automatic control
        7.3.18 Short-circuit test
        7.3.19 Measurement of audible noise
        7.3.20 Immunity test
        7.3.21 Emission test
        7.3.22 Measurement of ripple voltage and
               current
        7.3.23 Additional tests
   7.4 Tolerances
Annex A (informative) Example for testing high power
                      converters
   A.1 Introduction
   A.2 Basic concepts
   A.3 Test procedures
        A.3.1 Rated output test
        A.3.2 Overcurrent test
        A.3.3 Temperature-rise test
               A.3.3.1 GTO and diode
               A.3.3.2 Snubber circuits
               A.3.3.3 DC capacitors
        A.3.4 Power loss determination