Type WSTIII Three Phase Off Load Tap Changer (Common-output per Phase)

This kind of switch applies to the three-phase combination oil-immersed transformer electrical power with rated voltage of 10KV-24KV, rated current of 30A-63A; the voltage-regulating mode are: central part, terminal point ncutral point, which can be dircctly fixed on the tank cover of the transformer, exchange under the off-circuit condition.

Type WSTII three phase tap changer (delta connection)

– Used in mineral oil or silicon oil

– Rated Voltage 10KV-24KV

– Rated current from 30A-63A

– Tapping position: 3-7

– Regulation 2.5% per position

Model Explanation 
WST □ – □/□-□╳□
W: off-circuit
S : three-phase or D for single phase
T : linear type tap changer
□: 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