Type WDTII Single phase tap changer (delta connection)
This kind of switch applies to the single-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 canbe dircctly fixed on the tank cover of the transformer, exchange under the off-circuit condition.
Type WDTII Single 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
| Number of positions |
Rated voltage |
Rated current |
L | B | C | n | Фd1 | Фd2 | H |
| 3 | 10 kV | 30A | 180.5 | 61.5 | 55 | 3 | Ф3.1 | Ф5 | H=70、100、130 、150、200 (At user's option) |
| 63A | Ф5.1 | Ф7 | |||||||
| 24 kV | 30A | 180.5 | 61.5 | 55 | 3 | Ф3.1 | Ф5 | ||
| 63A | Ф5.1 | Ф7 | |||||||
| 36 kV | 30A | 205.5 | 61.5 | 80 | 3 | Ф3.1 | Ф5 | ||
| 63A | Ф5.1 | Ф7 | |||||||
| 5 | 10 kV | 30A | 249.5 | 94.5 | 55 | 5 | Ф3.1 | Ф5 | |
| 63A | Ф5.1 | Ф7 | |||||||
| 24 kV | 30A | 249.5 | 94.5 | 55 | 5 | Ф3.1 | Ф5 | ||
| 63A | Ф5.1 | Ф7 | |||||||
| 36 kV | 30A | 275 | 94.5 | 80 | 5 | Ф3.1 | Ф5 | ||
| 63A | Ф5.1 | Ф7 | |||||||
| 7 | 10 kV | 30A | 319.5 | 128.5 | 55 | 7 | Ф3.1 | Ф5 | |
| 63A | Ф5.1 | Ф7 | |||||||
| 24 kV | 30A | 319.5 | 128.5 | 55 | 7 | Ф3.1 | Ф5 | ||
| 63A | Ф5.1 | Ф7 | |||||||
| 36 kV | 30A | 345 | 128.5 | 80 | 7 | Ф3.1 | Ф5 | ||
| 63A | Ф5.1 | Ф7 |
