Type WSTZH3 three phase tap changer series-paraleldelta connection

This series of tap changers is suitable for oil-immersed power transformers with a frequency of 50Hz, a rated voltage of 10KV to 35KV, and a rated current of 63A to 250A. When the voltage needs to be adjusted, the transformer must be disconnected from the network. Make the transformer change the number of turns of the primary coil of the transformer under the condition of non-excitation, so as to realize the purpose of adjusting the voltage of the transformer. To achieve the purpose of adjusting the secondary output voltage

Type WSTZH3 three phase-tap changer(series-paralel/delta connection)

- Used in mineral oil or silicon oil               - Rated Voltage 10KV-36KV

- Rated current from 400A-500A                 - 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