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    • CAN/CSA-C88-M90 (R2014)

    Codes & Standards - Purchase

    CAN/CSA-C88-M90 (R2014)

    Power Transformers and Reactors
    SKU: 2410583 Published by CSA Group Publication Year 1990 Reaffirmed in 2014 91 pages Withdrawn

    Product Details

    • Preface/Scope
    Intended Use

    C88 applies to liquid-filled power transformers, auto transformers, booster transformers, load-tap-changing transformers, grounding transformers, phase-shifting transformers, series-voltage regulators, and shunt reactors. The power transformers covered by this standard are of insulation class 765 kV or less, rated 833 MVA or less for single-phase and 2000 MVA or less for three-phase units.

    C88 specifies a variety of power transformer safety and performance characteristics such as mechanical features, service conditions, loading, terminal marking, types of cooling, temperature, short-circuit characteristics, insulation levels and clearances in air. 

    This Standard does not apply to distribution transformers, instrument transformers, and dry-type transformers which are covered by other standards.

    Scope

    1.1
    This Standard, except as noted in Clause 1.2, applies to all liquid-filled transformers, auto transformers, booster transformers, load-tap-changing transformers, grounding transformers, phase-shifting transformers, series-voltage regulators, and shunt reactors.

    Notes:
    (1) The term transformer(s) in this Standard refers to the overall unit and not just to the electrical components implied by the definition.
    (2) In general this Standard is written in reference to two winding transformers, although many requirements will be recognized to be common to multi winding transformers, auto transformers, load-tap-changing transformers, shunt reactors, and series-voltage regulators. Where there are special requirements for these (other) transformers, there are sections contained herein specifically addressed to them.

    1.2
    This Standard does not apply to the following:
    (a) distribution transformers (CSA Standard C2, Single-Phase and Three-Phase Distribution Transformers, Types ONAN and LNAN);
    (b) instrument transformers (CSA Standard C13, Instrument Transformers);
    (c) dry-type transformers (CSA Standard C9, Dry-Type Transformers);
    (d) pad-mounted transformers (CSA Standard C227 Series of Standards);
    (e) submersible transformers (CSA Standard C301 Series of Standards);
    (f) three-phase network transformers (CSA Standard C199, Three-Phase Network Transformers);
    (g) rectifier transformers, welding transformers, furnace transformers, starting transformers, testing transformers, or current-limiting reactors.

    Note: In the above list the pertinent CSA Standard number has been noted where such exists. Where no CSA Standard exists, this Standard may be used insofar as it applies.
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