Non-excited strip-type tap changer

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无励磁条形分接开关

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Product Details

WST and WDT Series Non‑Excited Tap Changers (Strip Type)
WST, WDT Series de-energized Tap-changer ( Bar form )

This switch is suitable for three-phase and single-phase oil-immersed power transformers with a frequency of 50 or 60 Hz, maximum voltages of 12, 24, or 40.5 kV, and rated currents ranging from 20 to 300 A. It offers two tap‑changing configurations—central tap and neutral‑point tap—and can be directly mounted on the transformer tank cover or tank wall. Tap changes are performed under no‑excitation conditions.
This tap-changer is suitable for three-phase or single -phase oil-immersed power transformer with frequency 50，60Hz. Highest voltage for equipment 12、24、40.5kV, rated current from 20 to 300A，it can be equipped directly on transformer tank cover or tank wall, they must be working under non-energized condition。

Models with a “Z” suffix feature a metal base (reinforced type).
The end of model with Z is metal seat (reinforced)
Add “F” after the original model number, e.g., WST II 63/40.5-6x5F.
The reverse,at the end of the original model add F ,for example:WST II 63/40.5-6x5F

WST Series Strip-Type Combined No-Excitation Tap Changer
WST series linear form combined de-energized tap-changer

12–24 kV Triangular Series-Parallel Conversion and Tap‑Changing Voltage Regulation Bar‑Type Combination Switch (Box‑Cover Mounting)
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12–24 kV Series-Parallel Conversion and Tap-Change Voltage Regulation Bar-Type Combination Switch (Box-Cover Mounting)
12~24kV series parallel transition with tap regulating，bar-type combined switch( installed on tank cover )

12–24 kV Series-Parallel Conversion and Tap‑Changing Voltage Regulation Bar‑Type Combination Switch (Wall‑Mounted)
12~24kV series parallel transition with tap regulating , bar-type combined switch( installed on tank wall )