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Horizontal electric cage tap changer neutral point voltage regulation

Off circuit cage type tap changer

Horizontal electric cage tap changer neutral point voltage regulation

This series consists of an electric transmission mechanism, a switch body, and an electric controller. It is designed for use in oil-immersed transformers with a maximum equipment voltage of 40.5 kV or lower and a rated current of 630A or lower. The tap and switch functions can be operated electrically or manually when the transformer is de-energized. It is specifically used in conjunction with our electric controller JLK-718A, and it is important to note that it can only be operated when the transformer is de-energized.

    Model Meaning



    1. It can be applied to a wide range of transformers that do not require excitation.
    2. It has strong short-circuit resistance. 
    3. Users can choose between automatic or manual operation modes with this product.


    Connecting method Neutral point voltage regulation
    Rated current 200A - 630A
    Rated voltage 10kV、35kV、66kV
    Number of positions  4-8

    Voltage Regulation Principle




    Type Install measurement(mm) Frequency withstand dlevel(kv/1min)
    L1 L2 L D B H To ground Between phase Between contacts
    WSLⅢDW200~630/10-5×5~6×6 168 100 520 ≤320 ≤340 270 45 10 10
    WSLⅢDW200~630/10-7×7~8×8 168 100 520 ≤370 ≤390 310 45 10 10
    WSLⅢDW200~630/35-5×5~6×6 248 160 800 ≤320 ≤360 270 100 35 12
    WSLⅢDW200~630/35-7×7~8×8 248 160 800 ≤370 ≤420 310 100 35 12

    The above design and parameters will change without notice when the product is improved, and the specific size will be provided by our company when ordering.

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