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Vertical bell housing hand-wheel manual cage tap changer central voltage regulation

De-energized manual cage tap changer

Vertical bell housing hand-wheel manual cage tap changer central voltage regulation

The products in this series are de-energized tap-changers designed specifically for oil-immersed de-energized voltage regulating transformers. They adopt a vertical cage structure and are installed in a bell type configuration. These tap-changers have wide-ranging applications in power, rectifier, and electric furnace transformers with rated frequencies of 50Hz and 60Hz, rated voltages of 35kV, 66kV, and 110kV, and rated currents ranging from 125A to 2000A. It is crucial to operate these tap-changers only when the transformer is de-energized.

    Model Meaning



    1.This product is suitable for use in all de-energized transformers, showcasing its versatility.
    2.With its robust short-circuit resistance, this product can be customized to meet the demands of high-current and high-voltage environments.


    Connecting method Central voltage regulation
    Rated current 125A-2000A
    Rated voltage 10kV、35kV、66kV、110 kV

    Voltage Regulation Principle




    Type Rated voltage kV Frequency withstand level(kV/1min)
    H H1 H2 H3 ΦD To ground Between phase Between contacts
    WSLⅡ 200~630/35-6×5~10×9 Z 35 830 650 210 170 360 95 95 30
    WSLⅡ 800~1000/35-6×5~10×9 Z 930 750 240 195 360
    WSLⅡ 200~630/35-11×10~14×13 Z 830 650 210 170 430
    WSLⅡ 200~630/66-6×5~8×7 Z 66 1140 953 360 240 360 140 140 45
    WSLⅡ 200~630/66-10×9~12×11 Z 1140 953 360 240 430
    WSLⅡ 200~630/110-4×3~6×5 Z 110 1576 1390 470 400 360 230 230 55

    The above design and parameters will be changed without notice when the product is improved, and the specific size is subject to the switch outline drawing provided by our company at the time of ordering.

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