• BS 5611:1978

    Current The latest, up-to-date edition.

    APPLICATION GUIDE FOR ON-LOAD TAP-CHANGERS

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-1978

    Publisher:  British Standards Institution

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

    National foreword
    Cooperating organizations
    1. Scope
    2. Selection of a tap-changer
    2.1 General remarks
    2.2 Insulation level
    2.3 Current
    2.4 Breaking capacity
    2.5 Number of tapping positions
    2.6 Discharge problems with change-over selectors
    2.7 Mechanical life
    2.8 Motor-drive mechanism
    2.9 Pressure and vacuum tests
    2.10 Low-temperature conditions
    2.11 Continuous operation
    3. Location of oil-immersed tap-changer components
    3.1 Tap selectors
    3.2 Diverter and selector switches
    3.3 Oil level alarm contacts
    4. Field service
    4.1 Safety of operation
    4.2 Parallel operation
    4.3 Contact erosion and oil contamination
    5. Information required with enquiry or order
    5.1 Rating and general data
    5.2 Insulation level
    5.3 Pressure, vacuum and temperature requirements
    5.4 Special
    5.5 Fittings
    5.6 Motor-drive mechanism

    Abstract - (Show below) - (Hide below)

    Assists in the selection of on-load tap-changers for use with the tapped windings of transformers or reactors. Recommendations are not mandatory and only represent advice to the tap-changer manufacturer and purchaser. The responsibility for the correct application of the fully assembled tap-changer in connection with the transformer is with the manufacturer of the transformer. Includes mechanical life, pressure and vacuum tests, low temperature conditions, oil level alarm contacts, information required with enquired with enquiry or order.

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

    Committee PEL/14
    Development Note Also numbered as IEC 60542 Supersedes 77/22263 DC (08/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Current

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

    BS 7354:1990 CODE OF PRACTICE FOR DESIGN OF HIGH-VOLTAGE OPEN-TERMINAL STATIONS

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

    BS 171-1:1978 POWER TRANSFORMERS - GENERAL
    BS 171:1970 SPECIFICATION FOR POWER TRANSFORMERS
    BS 171-4:1978 POWER TRANSFORMERS - SPECIFICATION FOR TAPPINGS AND CONNECTIONS
    BS 171-5:1978 POWER TRANSFORMERS - SPECIFICATION FOR ABILITY TO WITHSTAND SHORT CIRCUIT
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