Type WDPII2 Single Phase Round Tap Changer

This tap-changer which is made of new structure , new material and new technology has the merits of reasonable in structure , handle freely, turning flexibly, locating exactly, good hermetically performance and small value of contact resistance ,it has become the new generation product in these days and has been certified by Ministry Department of China in December 1995. There are two sorts of products for this tap-changer, it is suitable for oilimmersed three phase or single-phase power transformer with frequency 50Hz or 60Hz, highest Voltage for equipment 12kV and 40.5kV and 72.5kV, rated current 63A, 125A, 250A and 400A. It can be fixed directly on transformer tank cover or tank wall, they must be working under non-energized condition.

Type WDPII2 single phase-tap changer

- Used in mineral oil or silicon oil

- Rated Voltage 20KV-36KV

- Rated current from 30A-63A

- Tapping position: 3-5

- Regulation 2.5% per position

Model Explanation 
WST □ - □/□-□X□

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