• BS 7844-1:1996

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    THREE-PHASE DRY-TYPE DISTRIBUTION TRANSFORMERS 50 HZ, FROM 100 TO 2500 KVA WITH HIGHEST VOLTAGE FOR EQUIPMENT NOT EXCEEDING 36 KV - GENERAL REQUIREMENTS AND REQUIREMENTS FOR TRANSFORMERS WITH HIGHEST VOLTAGE FOR EQUIPMENT NOT EXCEEDING 24 KV

    Available format(s):  Hardcopy, PDF

    Superseded date:  31-07-2011

    Language(s):  English

    Published date:  01-01-1996

    Publisher:  British Standards Institution

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

    Foreword
    1 General
    1.1 Scope
    1.2 Object
    1.3 Compliance with current Harmonization Documents
    2 Electrical characteristics
    2.1 Rated power
    2.2 Highest voltages for equipment of windings
    2.3 Rated voltages of windings
    2.4 Tappings
    2.5 Connections
    2.6 Dimensioning of neutral connection of the low-voltage
         winding
    2.7 Losses, sound power level and impedance voltage
    2.8 Partial discharge
    2.9 Insulation levels and dielectric tests
    3 Design requirements
    3.1 Environmental and climatic classes
    3.2 Fire behaviour classes
    3.3 Terminals
    3.4 Enclosures
    4 Dimensional characteristics
    4.1 Dimensions and rollers
    5 Accessories
    Annexes
    A (informative) National deviations
    B (normative) Normative references

    Abstract - (Show below) - (Hide below)

    Describes transformers from 100 to 2500 kVA operating in three-phase distribution networks. Applicable to three-phase dry-type transformers for continuous service, 50 Hz, natural cooling, with two windings.

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

    Committee PEL/14
    Development Note Supersedes 91/18822 DC (10/2005) Reviewed and confirmed by BSI, January 2008. (12/2007)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 7844-2:1996 THREE-PHASE DRY-TYPE DISTRIBUTION TRANSFORMERS 50 HZ, FROM 100 TO 2500 KVA WITH HIGHEST VOLTAGE FOR EQUIPMENT NOT EXCEEDING 36 KV - SUPPLEMENTARY REQUIREMENTS FOR TRANSFORMERS WITH HIGHEST VOLTAGE FOR EQUIPMENT EQUAL TO 36 KV

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC TR 60616:1978 Terminal and tapping markings for power transformers
    BS 7697:1993 NOMINAL VOLTAGES FOR LOW VOLTAGE PUBLIC ELECTRICITY SUPPLY SYSTEMS
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