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WST de-energized, linear tap changer. Series-parallel connection ZH3 Opening dimensions Φ43

De-energized linear tap changer

WST de-energized, linear tap changer. Series-parallel connection ZH3 Opening dimensions Φ43

Suitable for triple-phase oil-insulated transformers, the tap changer is designed to work with frequencies of 50Hz and 60Hz. It is suitable for transformers with a maximum equipment voltage of 10kV and 24kV, and a rated through-current of 30A and 63A. The tap changer can be easily fixed on the transformer tank cover and replaced when the transformer is not energized.

    Model Meaning

    xcbv419

    Advantages

    1. The tap changer has a reasonable structural design, ensuring a small size and low installation space requirements.
    2. The tap changer is equipped with a flexible gear shifting design, allowing for precise positioning and effortless adjustment to meet various needs, ensuring efficient control.
    3. The tap changer features a small contact resistance, which is vital for ensuring the stability and efficiency of the circuit.
    4. The tap changer is manufactured using standardized production techniques, allowing for customization based on specific requirements. It offers cost savings while maintaining the same level of quality.

    Details

    Phases Triple
    Highest voltage for equipment 20kV
    Rated through-current 63A-250A
    Voltage regulation 0.025
    Tap positions 3~5

    Voltage Regulation Principle

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    Outline

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    No. Model No. Regulating position   Install dimension  mm
    L L1 L2 L4 L5 H H1 H2 H3 φC
    1 WSTⅤ63/20-4×3ZH3 Series-parallel Central 688 256 216 99 29 230 78 70 60 80
    2 WSTⅤ125/20-4×3ZH3 688 256 216 107 29 275 78 80 80 80
    3 WSTⅤ250/20-4×3ZH3 766 284 241 112 34 275 78 80 80 105
    4 WSTⅤ63/20-6×5ZH3 688 256 216 99 29 230 78 70 60 80
    5 WSTⅤ125/20-6×5H3 688 256 216 107 29 275 78 80 80 80
    6 WSTⅤ250/20-6×5ZH3 766 284 241 112 34 275 78 80 80 105

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