Three-Phase Selector Off Load Tap Changer Disconnect Switch for Transformer

WST series off-circuit Tap Changer

(Linear form)

This kind of switch applies to the single-phase, three phase, combination oil-immersed transformer electrical power with frequency of 50HZ, 60HZ, rated voltage of 10KV, 35KV, rated current of 30A～500A; the voltage-regulating mode are: central part, terminal point ncutral point, which canbe dircctly fixed on the tank cover of the transformer, exchange under the off-circuit condition.

WST □ - □/□-□╳□
W: off-circuit
S : three-phase or D for single phase
T : linear type tap chager
□: voltage regulation model
□: rated current
□: rated voltage
□: number of tapping heads
□: number of tapping position
Voltage Regulation Model
I : terminal point
II : central point
III : neutral point
IV : Y-△ conversion
V : series-parallel connection

Our Advantage

* High pressure capability
* Strong anti-aging ability
* Strong anti-lightning impact
* Strong protection
* Use smoothly
* Stable use