• SN EN 61378-2 : 2001

    Current The latest, up-to-date edition.

    CONVERTER TRANSFORMERS - PART 2: TRANSFORMERS FOR HVDC APPLICATIONS

    Available format(s): 

    Language(s): 

    Published date:  13-01-2013

    Publisher:  Swiss Standards

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    Table of Contents - (Show below) - (Hide below)

    1 General
       1.1 Scope
       1.2 Service conditions
    2 Normative references
    3 Definitions
    4 List of variables
    5 Ratings
       5.1 General
       5.2 Rated voltage
       5.3 Rated current
       5.4 Rated frequency
       5.5 Rated power
    6 Tolerances
       6.1 General
       6.2 Short-circuit impedance tolerances
       6.3 Guarantees
    7 Losses
       7.1 General
       7.2 No-load loss
       7.3 Load loss under rated power-frequency
           conditions
       7.4 Load loss under service conditions
       7.5 Determination of hot-spot temperature
    8 Insulation levels
       8.1 Line windings
       8.2 Valve windings
       8.3 Induced voltage level with partial discharge
           measurements
    9 Sound level
       9.1 General
       9.2 Guaranteed sound-power levels
       9.3 Sound-power level at site
    10 Testing
       10.1 General
       10.2 Tests
       10.3 Load-loss measurements
       10.4 Factory dielectric tests
       10.5 Temperature-rise test
       10.6 Load-current test
       10.7 Determination of transformer sound-power
            level
    11 High-frequency modelling
    12 Loading of transformer above rating
    13 Bushings
       13.1 AC bushings
       13.2 Valve winding bushings
    14 Tap-changer
       14.1 General
       14.2 Current wave shape
    Bibliography
    Table 1 - Test conditions for three-winding
              transformers
    Annex ZA (normative) Normative references to
                         international publications
                         with their corresponding
                         European publications

    Abstract - (Show below) - (Hide below)

    Applicable to oil-immersed three-phase and single-phase convertor transformers for use in HVDC power transmission.

    General Product Information - (Show below) - (Hide below)

    Document Type Standard
    Publisher Swiss Standards
    Status Current
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