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Standard voltage Transformer

Standard voltage Transformer

  • Application

    The standard voltage transformer is suitable to be used for error measurement in delivery test or on-site test of power transformers 35~1000kV.


    • High measurement accuracy, in Grade 0.01~0.1

    • Wide range of measuring voltage: each standard voltage transformer can have 2 or more composite ratios

    • Mainly insulated by SF6 which is good at automatic-restoration, operation is reliable and safe

    • Several patents are used; hydraulic pressure device for lifting, easy to operate

    • Creative electromagnetic shielding technique, good anti-jamming performance, stable error performance

    Technical Specifications

    Rated voltage UNkV35661102203305007501000
    Max working voltage kV1.2 UN or 1.5 UN
    Rated frequency Hz50
    Rated power factor1.0
    Rated short-time voltagewithstand kV1.3 UN or 1.6 UN



    Rated secondary voltage V100/√3
    Accuracy grade0.01,0.02
    Rated output capacity VA0~1
    Other windingRated secondary voltage V100 or 100/3
    Accuracy grade0.05,0.1
    Rated output capacity VA0~1
    Annual SF6 leakage≤0.5%
    Weight kg9011015526072072028506800

    1) Several patents are used in this series of standard voltage transformer.
    2) We are able to supply standard voltage transformer with multiple input voltages, such as HJ-500(330).

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