20KV Three Phase Oil-Immersed Transformer
20kV three-phase oil-immersed distribution transformer with increased power supply capability, reduced energy loss, and improved voltage quality.
Our 20kV three-phase oil-immersed distribution transformer builds on the 6+kV class with meaningful performance advantages for modern power distribution systems. Designed to increase power supply capability while reducing energy losses, this transformer represents a promising solution for energy conservation in utility, industrial, and commercial distribution networks.
Overview
Stepping up from the 6+kV voltage class, the 20kV three-phase oil-immersed distribution transformer delivers increased power supply capability suited to larger loads and expanding distribution networks. This higher capacity allows utilities and industrial facilities to serve growing demand without adding additional transformer units, making it a practical choice for system upgrades and new construction where load requirements exceed what a 6+kV unit can efficiently handle.
Voltage quality is a key advantage at this voltage class. The 20kV transformer is engineered to maintain stable, consistent voltage output across varying load conditions, helping protect connected equipment and reduce power quality issues throughout the distribution system. Alongside this, the transformer reduces electric energy loss in the power system compared to lower voltage class units, translating into improved operating efficiency for utilities and industrial power consumers over the transformer's service life.
These efficiency gains extend to system-level cost savings as well. By reducing energy loss and increasing capacity per unit, the 20kV three-phase oil-immersed transformer can help lower the overall construction cost of a power distribution system, since fewer transformers or supporting infrastructure may be needed to serve the same load. As a developing product in energy conservation for power systems, this transformer is a strong option for utilities, industrial facilities, and infrastructure projects prioritizing efficiency, voltage stability, and long-term cost savings in their distribution network design.
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Product Specifications
- Application
- Distribution
- Voltage Class
- 20 kV
- Type
- Three-phase oil-immersed distribution transformer
- HV Voltage
- 20 kV
- LV Voltage
- 0.4 kV
- HV Tapping
- ±2×2.5%, ±5%
- Vector Group
- Dyn11
- Available Capacities
- 30 – 2500 kVA
- No-load Loss Range
- 90 – 2340 W
- Load Loss (75°C) Range
- 660 – 22200 W
- Short Circuit Impedance
- 5.5% (30–500 kVA), 6% (500–2500 kVA)
- No-load Current Range
- 0.5% – 2.1%
- Model Number Pattern
- VO-UT-3OID-{kVA}-20kV-0.4kV
Specification Table
| Rated Capacity (kVA) | No-load Loss (W) | Load Loss 75°C (W) | No-load Current (%) |
|---|---|---|---|
| 30 | 90 | 660 | 2.1 |
| 50 | 130 | 990 | 2 |
| 63 | 150 | 1145 | 1.9 |
| 80 | 180 | 1370 | 1.8 |
| 100 | 200 | 1650 | 1.6 |
| 125 | 240 | 1980 | 1.5 |
| 160 | 290 | 2420 | 1.4 |
| 200 | 330 | 2860 | 1.3 |
| 250 | 400 | 3350 | 1.2 |
| 315 | 480 | 4010 | 1.1 |
| 400 | 570 | 4730 | 1 |
| 500 | 680 | 5660 | 1 |
| 630 | 810 | 6820 | 0.9 |
| 800 | 980 | 8250 | 0.8 |
| 1000 | 1150 | 11330 | 0.7 |
| 1250 | 1350 | 13200 | 0.7 |
| 1600 | 1630 | 15950 | 0.6 |
| 2000 | 1950 | 19140 | 0.6 |
| 2500 | 2340 | 22200 | 0.5 |
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