2.5MVA Substation Transformers 24940V To 480Y Oil Immersed Power Transformer
Leilang Electric proudly presents the 2.5MVA (2500KVA) Conservator Type Oil-Immersed Substation Transformer (24940V to 480Y/277V), engineered and manufactured in strict compliance with ANSI/IEEE, DOE, CSA and ASTM international standards for North American power distribution systems. This pad-mounted radial feed transformer features KNAN/KNAF dual cooling technology and high-purity copper windings, delivering exceptional overload capacity, long-term reliability and energy efficiency for industrial parks, commercial centers, data centers and utility grid applications.
Our 2.5MVA conservator type transformer adopts an advanced oil expansion system that effectively isolates insulating oil from air, preventing moisture ingress and oil oxidation, significantly extending service life. Equipped with a grain-oriented silicon steel core and 5-position off-load tap changer, it maintains stable voltage output even under fluctuating load conditions. The transformer is designed to operate reliably in extreme temperatures ranging from -40°C to +40°C, making it suitable for harsh environmental conditions across North America.
Every unit undergoes 9+ rigorous factory tests before shipment to guarantee compliance with all stated performance parameters. With a production capacity of 500 units per month and a standard lead time of 30 days, Leilang Electric can fulfill both small and large-scale orders efficiently. All our transformers come with a 24-month comprehensive warranty from the bill of lading date, backed by lifetime technical support and free replacement of easily damaged accessories.
- Global Standard Compliance: Fully certified to ANSI/IEEE, DOE, CSA and ASTM standards, UL/cUL certification available upon request
- Conservator Type Design: Advanced oil expansion system prevents moisture ingress and extends insulating oil service life
- KNAN/KNAF Dual Cooling: Natural air cooling with optional forced air cooling for enhanced overload capacity
- High-Efficiency Copper Windings: Low-loss grain-oriented silicon steel core minimizes energy consumption
- Comprehensive Protection: Equipped with Buchholz relay, automatic pressure relief valve and gas sampler
- Extreme Temperature Operation: Designed for reliable performance from -40°C to +40°C with low noise (65 dBA)
| Parameter | Specification |
|---|---|
| Rated Capacity | 2500 KVA (2.5 MVA) / 3100 KVA (3.1 MVA) |
| Phase | 3 |
| Feed Type | Radial Feed |
| Primary Voltage | 24940V (25kV class) |
| Secondary Voltage | 480Y/277V |
| Vector Group | DYN1 |
| Cooling Method | KNAN / KNAF |
| Frequency | 60 Hz |
| Temperature Rise | 55°C |
| Insulation Class | E (120°C rated) |
| Winding Material | Copper |
| Tap Changer | 5-position off-load, 2.5% steps |
| Ambient Temperature Range | -40°C to +40°C |
| Sound Level | 65 dBA |
| Primary BIL | 110 kV |
| Secondary BIL | 30 kV |
| Rated Capacity | High Voltage | Low Voltage | Connection Symbol | Short Circuit Impendence | No-load loss | On-load loss | Dimension | Weight |
| (kVA) | (KV) | (V) | (%) | (W) | (W) | W*H*D(mm) | (kg) | |
| 800 | 4.16KV 12.47KV 13.2KV 13.8KV 24.94KV 34.5KV or others |
208/120V 480/277V 600V 12470V 13200V 13800V or others |
Dyn1 Ynyn0 Dyn11 Dd0 Ynd11 or others |
2.7 3.1 4.35 5.75 6 |
980 | 9350 | 1060*1500*1780 | 2050 |
| 1000 | 1160 | 11500 | 1085*1570*1800 | 2450 | ||||
| 1250 | 1380 | 13900 | 1160*1610*1890 | 2900 | ||||
| 1600 | 1660 | 16600 | 1190*1630*1950 | 3400 | ||||
| 2000 | 2030 | 18300 | 1260*1700*2090 | 4100 | ||||
| 2500 | 2450 | 19600 | 1150*2150*2250 | 4750 | ||||
| 3000 | 3240 | 26500 | 1900*2600*2150 | 6500 | ||||
| 5000 | 4500 | 27000 | 2500*2210*3180 | 9500 | ||||
| 7500 | 7200 | 32000 | 3660*3100*5100 | 13600 | ||||
| 10000 | 8500 | 35500 | 3830*2640*2216 | 15800 |
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