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  • BS 7821-3:1995

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Three phase oil-immersed distribution transformers, 50 Hz, from 50 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

    Available format(s):  Hardcopy, PDF

    Superseded date:  31-07-2007

    Language(s):  English

    Published date:  15-09-1995

    Publisher:  British Standards Institution

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

    Committees responsible
    National foreword
    Foreword
    1. General
    2. Electrical characteristics
    3. Design requirements
    4. Dimensional characteristics
    5. Accessories

    Abstract - (Show below) - (Hide below)

    Lays down requirements, for transformers, related to electrical characteristics, dimensions and design. Covers transformers from 50 to 2,500 kVA meant for operation in three-phase distribution networks, for indoor or outdoor continuous service, 50 Hz, immersed in mineral-oil, natural cooling, with two windings.

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    Committee PEL/14
    Development Note Supersedes 92/29057 DC (10/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By

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

    BS 7821-2.1:1995 Three phase oil-immersed distribution transformers, 50 Hz, from 50 to 2500 kVA with highest voltage for equipment not exceeding 36 kV. Distribution transformers with cable boxes on the high voltage and/or low voltage side General requirements

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

    BS 171-1:1978 Power transformers General
    BS 7821-1:1995 Three phase oil-immersed distribution transformers, 50 Hz, from 50 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
    BS 171-3:1987 Power transformers Specification for insulation levels and dielectric tests
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