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Horizontal manual cage tap changer star-delta transformation

De-energized manual cage tap changer

Horizontal manual cage tap changer star-delta transformation

The series offers vertical and horizontal options, catering to both three-phase and single-phase oil-immersed power transformers operating at frequencies of 50Hz and 60Hz. It is designed for transformers with a maximum equipment voltage and a rated current ranging from 63A to 1200A. The tap-changer can be easily fixed on the transformer tank cover or wall, allowing for de-energized tap changes and replacements.

    Model Meaning



    1. This product can be adapted to all de-energized transformers, making it highly versatile. 
    2. This product is specifically engineered to withstand short-circuits with great resilience.


    Connecting method Star-delta transformation
    Rated current 63A-1200A
    Rated voltage 10kV、35kV

    Our horizontal manual cage tap-changers with star-delta conversion are designed for medium and high voltage applications. It is designed to provide a smooth, seamless transition between taps, ensuring optimal power distribution and minimal downtime. Star-delta conversion capability enables efficient voltage regulation, making it ideal for a variety of power system configurations.

    This tap changer is designed with precision and durability in mind. The high-quality materials and components used in its construction ensure long-term reliability and performance. The horizontal design facilitates inspection and maintenance, making it convenient for operators to make necessary adjustments and inspections.

    One of the main features of this tap-changer is its manual operation. This allows for precise control and adjustment, giving operators the flexibility to fine-tune tap settings to specific power distribution requirements. The cage design ensures safe and stable operation, minimizing the risk of any interruptions during tap changes.

    Additionally, our horizontal manual cage tap-changers feature star-delta conversion and are designed to meet stringent industry standards for safety and efficiency. It is thoroughly tested and certified to ensure compliance with regulatory requirements, giving our customers peace of mind and confidence in its performance.

    Overall, our horizontal manual cage tap-changers with star-delta conversion are a must-have for power distribution systems that require reliable, efficient tap-changer functionality. With its cutting-edge technology and rugged construction, this tap-changer sets new standards for performance and reliability in the industry. Upgrade your distribution system with our horizontal manual cage tap-changer and experience the difference it makes!

    Voltage Regulation Principle




    Type Rated voltage kV Install measurement mm Frequency withstand level(kV/1min)
    L L1 L2 H A B Opening tank hole ΦD To ground Between phase Between contacts
    WSLⅣ125/10-3×2 W 10 365 130 65 185 185 215 Φ43 42 42 18
    WSLⅣ250/10-3×2 W 385 135 70 190 190 220
    WSLⅣ400/10-3×2 W 500 167.5 95 210 235 265
    WSLⅣ600/10-3×2 W 515 165 105 220 250 280
    WSLⅣ125/35-3×2 W 35 641 203 130 205 220 270 95 95 18
    WSLⅣ250/35-3×2 W 641 203 130 210 230 280

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