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Tapped winding transformer that changes voltage locally to required load
- Used for starting large motors
- More efficient than conventional transformer
- Smaller in size
- Better voltage regulation
- Cost efficient
- Low requirement of excitation currents
High Rating Capability – Available up to 16 MVA / 33 kV, enabling use in medium-voltage networks, industrial installations, and renewable evacuation systems.
Single & Three-Phase Designs – Suitable for diverse applications ranging from motor starting to interconnecting distribution feeders.
Improved Efficiency – Shared winding topology reduces copper losses and enhances overall energy efficiency.
Compact & Lightweight Construction – Requires less core and conductor material, making installation easier in space-constrained environments.
Lower Cost Solution – Optimized design offers lower capital cost compared to two-winding transformers for similar voltage ratios.
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Specifications
| Type | Dry Type | Oil Type |
|---|---|---|
| Rating | Up to 20 MVA | Up to 50 MVA |
| Voltage Class | Up to 22 kV ( > 22kV) * | Up to 33 kV |
| Frequency | 50/60 Hz | 50/60 Hz |
| Cooling | AN/AF | ONAN/ONAF |
| Vector Group | As required | As required |
| Winding Material | Cu / Al | Cu / Al |
| Insulation Class | F/H/R | A |
| Taps available | ||
| Separate termination box for incoming supply, tap connections and neutral terminal | ||
Technical Information
| Parameter | Value |
|---|---|
| The Primary and secondary coils are connected to each other electrically. | |
| Tapped winding transformer changes voltage locally to the required load voltage. | |
| Supply segments | Industries |
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