2500 kVA Three Phase Oil Filled Distribution Transformer
Primary Voltage: 33KV / 35KV
Secondary Voltage: 0.38KV / 0.4KV / 0.415KV / 0.44KV
Power Rating: 2500 KVA
Connection Type: Dyn11/Yyno or others
Standards: ANSI/IEEE, CSA/CAN, DOE
Certificate: CSA, SGS, CE, UL, cUL
2500 KVA Three Phase Oil Filled Distribution Transformer has a rated capacity of 2500 kVA and is considered a large transformer. This transformer adopts oil-immersed cooling, with good heat dissipation performance and insulation performance. At the same time, the 2500 kVA oil-immersed transformer also has a relatively high energy efficiency level and complies with relevant international energy efficiency standards.
Basic Features
This transformer adopts a three-phase double-winding design, that is, the primary side (input side) and the secondary side (output side) each contain three independent windings, and voltage conversion is realized through electromagnetic coupling. Its core structure consists of core, winding, insulating oil and oil tank: the core adopts high-permeability grain-oriented silicon steel sheets stacked together to reduce no-load loss; the winding is wound with all-copper conductors, whose thermal conductivity and electrical conductivity are better than aluminum materials, reducing heat accumulation during operation; insulating oil not only fills the gaps between windings, but also takes away heat through circulating flow, while providing insulation protection; the oil tank serves as the overall supporting structure, ensuring the sealing and safety of the equipment.
Product Advantages
Large Capacity
2500 KVA Three Phase Oil Filled Distribution Transformer has a large capacity and can meet the demand of high-power electrical loads.
High Reliability
The transformer is oil immersed, with high electrical performance and mechanical strength, and can stably operate in various harsh environments.
Easy Maintenance
Dry type transformers are more difficult to maintain than oil-immersed transformers. When maintenance is required, it is only necessary to open the top cover of the transformer to check the condition inside, without the need to dismantle the whole transformer.
Energy Saving and Environmental Protection
2500 KVA Three Phase Oil Filled Distribution Transformer adopts advanced energy-saving technology, which can reduce energy consumption and operating cost, and conforms to the concept of green environmental protection.
Application
Industrial Distribution
Used in main step-down stations and workshop distribution of large factories, mines and smelting enterprises, providing stable power output.
Municipal Engineering
Completes power transformation for public facilities such as urban substations, residential distribution rooms, hospitals and schools.
Rural Power Grid Renovation
Renovates old equipment in rural power grid upgrading projects and improves the quality of power supply.
Commercial Real Estate
Utilized in distribution systems of high-rise buildings such as office buildings, shopping malls etc. to meet the power demand of high-power equipment.
Technical Parameters
| Parameter | Unit | Value (Export High Efficiency) | Reference Standard |
| Rated Capacity | kVA | 2500 | IEC 60076 |
| High Voltage (HV) | kV | 10 / 13.2 / 13.8 / 24.9 / 33 / 34.5 | ANSI/IEC |
| Low Voltage (LV) | V | 400/230, 480/277, 208Y/120 | IEC/ANSI |
| Frequency | Hz | 50 / 60 | IEC 60076 |
| Vector Group | — | Dyn11 / Yyn0 | IEC 60076 |
| Tap Range | — | ±2×2.5% (5 Taps, Off-circuit) | IEC 60076 |
| Short-circuit Impedance (Uk) | % | 5% / 5.75% / 6% (±10%) | IEC 60076 |
| No-load Loss (P0) | W | ≤1280 (50Hz); ≤1400 (60Hz) | DOE 2016 / IEC |
| Load Loss (Pk@75℃) | W | ≤13360 (50Hz); ≤15200 (60Hz) | DOE 2016 |
| No-load Current (I0) | % | ≤0.4 | IEC 60076 |
| Efficiency (100% Load, cosφ=1) | % | ≥99.4 | DOE 2016 |
Procedure for Scientific Selection of 2500 KVA Three Phase Oil Filled Distribution Transformer
- Capacity matching: Choose based on the real power load. If the total power of a factory workshop is 2000kW, then a 2500kVA transformer should be selected with 1.2 times load margin reserved.
- Voltage level: Common specifications are 35kV/10kV. The 10 kV is applicable to small and medium-sized factories. The 35 kV is applicable to large enterprises or regional substations.
- Installation environment: Outdoor installation should be rainproof, sunproof and ventilated; indoor installation should be reserved for heat dissipation space. In the case of coastal areas, using anti-corrosion transformers to avoid salt corrosion is recommended.
