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Power Distribution Transformer--TRANSFORMADOR TRIFASICO TIPO POSTE
1. General Introduction
The Power Distribution Transformer is a critical component in electrical grids, responsible for stepping down high-voltage electricity from transmission lines to lower voltages suitable for end-user applications. Designed to ensure reliable, efficient, and safe power delivery, these transformers play a pivotal role in residential, commercial, and industrial settings. Available in various configurations, including dry-type and oil-immersed models, they adapt to diverse environmental and operational requirements.
2. Technical Parameters
|
额定容量 rated capacity KVA |
电压组合及分接范围 Voltage combination and tap range | 联结组标号Connection Group Symbol | 空载损耗 No-load Loss (W) | 负载损耗 Load Loss (W) | 空载电流No-load Current (%) | 短路阻抗Short Circuit Impedance (%) | ||
|
高压 high voltage （KV） |
分接范围 Tap Range | 低压 low voltage（KV） | ||||||
| 30 | 11 10.5 10 6.3 6 |
±5 ±2×2.5% | 0.4 0.69 | Yyn0 Dyn11 Yzn11 |
100 | 630/600 | 2.3 | 4 |
| 50 | 130 | 910/870 | 2.0 | 4 | ||||
| 63 | 150 | 1090/1040 | 1.9 | 4 | ||||
| 80 | 180 | 1310/1250 | 1.9 | 4 | ||||
| 100 | 200 | 1580/1500 | 1.8 | 4 | ||||
| 125 | 240 | 1890/1800 | 1.7 | 4 | ||||
| 160 | 280 | 2310/2200 | 1.6 | 4 | ||||
| 200 | 340 | 2730/2600 | 1.5 | 4 | ||||
| 250 | 400 | 3200/3050 | 1.4 | 4 | ||||
| 315 | 480 | 3830/3650 | 1.4 | 4 | ||||
| 400 | 570 | 4520/4300 | 1.3 | 4 | ||||
| 500 | 680 | 5410/5150 | 1.2 | 4 | ||||
| 630 | Yyn0 Dyn11 |
810 | 6200 | 1.1 | 4.5 | |||
| 800 | 960 | 7500 | 1.0 | 4.5 | ||||
| 1000 | 1150 | 10300 | 1.0 | 4.5 | ||||
| 1250 | 1360 | 12000 | 0.9 | 4.5 | ||||
| 1600 | 1640 | 14500 | 0.8 | 4.5 | ||||
| 2000 | 1960 | 19800 | 0.8 | 5 | ||||
| 2500 | 2310 | 23000 | 0.7 | 5 | ||||
3. Key Features
3.1 High Efficiency
- Utilizes low-loss silicon steel cores and optimized winding designs to minimize no-load and load losses, reducing operational costs and carbon footprint.
- Meets international energy efficiency standards (e.g., IE3, IEEE C57).
3.2 Reliable Insulation
- Dry-Type Transformers: Employ epoxy resin casting or vacuum pressure impregnation (VPI) for excellent moisture resistance, fire safety, and long-term durability. Ideal for indoor installations.
- Oil-Immersed Transformers: Feature mineral oil insulation with high dielectric strength, providing enhanced cooling and protection against electrical faults. Suitable for outdoor and heavy-duty applications.
3.3 Safety & Protection
- Equipped with built-in protection mechanisms, including overcurrent, overvoltage, and over-temperature relays.
- Oil-immersed models include Buchholz relays and pressure relief devices to prevent internal faults and oil leakage.
3.4 Adaptable Design
- Available in single-phase or three-phase configurations to suit different load requirements.
- Offers customizable tap changers for ±2.5% or ±5% voltage regulation, ensuring stable power supply under varying grid conditions.
3.5 Low Noise Operation
- Advanced core lamination and vibration-damping technologies reduce mechanical noise, making it suitable for noise-sensitive environments such as residential areas and commercial buildings.
4. Applications
- Residential Power Distribution: Steps down high-voltage grid power to 230V/400V for household use.
- Commercial Buildings: Powers offices, shopping malls, hospitals, and other facilities with reliable medium to low-voltage electricity.
- Industrial Settings: Supplies electricity to factories, manufacturing plants, and industrial parks, supporting heavy machinery and equipment.
- Renewable Energy Integration: Connects distributed generation sources (e.g., solar farms, wind turbines) to the grid.
- Urban and Rural Grids: Enhances grid stability and power quality in both urban and remote rural areas.