110kV Three-Phase Duplex Winding Power Transformer
110kV three-phase duplex winding power transformer engineered for low loss, low noise, and high reliability in demanding power applications.
Our 110kV three-phase duplex winding power transformer is built with a two-winding design, stepping voltage between a single high-voltage and single low-voltage level, with efficient, reliable performance. Designed and optimized using advanced technologies applied to the transformer core, coil, body, leads, and fuel tank, this transformer delivers low partial discharge, low loss, low noise, and high reliability for power plants, substations, and large industrial facilities.
Overview
The duplex winding design uses a single high-voltage and single low-voltage winding, a straightforward two-winding configuration well-suited to substations and industrial sites that need to step 110kV down to one output voltage level. This simpler winding structure supports efficient, dependable performance for applications where a single voltage transformation is all that's required, making it a practical choice for standard substation and industrial power distribution needs.
Every component of this transformer, from the core and coil to the body, leads, and fuel tank, is engineered as part of an integrated optimization process that draws on advanced technologies developed both domestically and internationally. This design approach delivers low partial-discharge and low-loss performance, along with reduced operating noise and lightweight construction that simplifies transportation and installation. The transformer's high reliability under continuous operation has earned it strong praise from users and technical experts across the power transformer field.
Built around the principles of stability, economy, and environmental protection, the 110kV three-phase duplex-winding power transformer is well-suited to power plants, substations, large industrial facilities, and mineral enterprises requiring dependable single-voltage-level power transformation. Its efficient two-winding design supports long-term operating efficiency and reduced environmental impact, while its proven reliability makes it a practical choice for critical power infrastructure applications.
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Product Specifications
- Voltage Class
- 110 kV
- Winding Type
- Three-phase Duplex Winding
- Tap Changer
- On-load tap changer
- HV Voltage Combined
- 110 ± 8×1.25%
- LV Voltage Options
- 6.3 / 6.6 / 10.5 / 11 kV
- Vector Group
- YNd11
- Short Circuit Impedance
- 10.5%
- Available Capacities
- 6300 – 63000 kVA
- No-load Loss Range
- 10.0 – 56.8 kW
- Load Loss at 75°C Range
- 36 – 234 kW
- No-load Current Range
- 0.52% – 0.80%
- Model Number Pattern
- VO-UT-3DWP-{kVA}-110kV-{LkV}
Specification Table
| Rated Capacity (kVA) | No-load Loss (kW) | Load Loss 75°C (kW) | No-load Current (%) |
|---|---|---|---|
| 6300 | 10 | 36 | 0.8 |
| 8000 | 12 | 45 | 0.8 |
| 10000 | 14.2 | 53 | 0.74 |
| 12500 | 16.8 | 63 | 0.74 |
| 16000 | 20.2 | 77 | 0.69 |
| 20000 | 24 | 93 | 0.69 |
| 25000 | 28.4 | 110 | 0.64 |
| 31500 | 33.8 | 133 | 0.64 |
| 40000 | 40.4 | 156 | 0.58 |
| 50000 | 47.8 | 194 | 0.58 |
| 63000 | 56.8 | 234 | 0.52 |
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