Table of Contents
Understanding Oil Immersed Transformers
Oil immersed transformers are crucial components in electrical power distribution systems. These transformers utilize oil as an insulating and cooling medium, which enhances their performance and longevity. The oil helps dissipate heat generated during operation, allowing the transformer to maintain optimal functionality even under heavy loads. This design minimizes the risk of overheating, ensuring a reliable power supply.
These transformers are particularly popular in industrial applications due to their ability to handle large amounts of power. A 3000 kVA transformer, for instance, is capable of supplying significant power to various industrial processes, making it an ideal choice for factories and large commercial buildings. The capacity of these transformers allows them to efficiently manage high voltage levels, thus ensuring safety and reliability in power distribution networks.
Cost-Effective Solutions from China

China has emerged as a leading manufacturer of oil immersed transformers, offering cost-effective solutions for both domestic and international markets. The country’s advanced manufacturing techniques and economies of scale have resulted in competitive pricing without compromising on quality. Companies in China are able to produce high-capacity transformers that meet international standards, making them attractive options for businesses looking to invest in reliable electrical infrastructure.
| Type | Rated capacity (KVA) | Voltage combination(KV) | No-load losses(W) | Load losses(W) | No-load current (%) | Short-circuit impedance (%) |
| SC10-800 | 800 | 33,35,38/6,6.3,6.6,10,11 | 2200 | 9400 | 1.1 | 6.0 |
| SC10-1000 | 1000 | Voltage combination(KV) | 2610 | 10800 | 1.1 | 6.0 |
| SC10-1250 | 1250 | 6,6.3,6.6,10,11/0.4 | 3060 | 11900 | 1.0 | 6.0 |
| SC10-1500 | 1500 | Voltage combination(KV) | 3600 | 15400 | 1.0 | 6.0 |
| SC10-2000 | 2000 | 6,6.3,6.6,10,11/0.4 | 4130 | 18200 | 0.9 | 7.0 |
| SC10-2500 | 2500 | Voltage combination(KV) | 4750 | 21800 | 0.9 | 7.0 |
| SC10-3150 | 3150 | 6,6.3,6.6,10,11/0.4 | 5880 | 24500 | 0.8 | 8.0 |
| SC10-4000 | 4000 | Voltage combination(KV) | 6860 | 29400 | 0.8 | 8.0 |
| SC10-5000 | 5000 | 6,6.3,6.6,10,11/0.4 | 8180 | 34960 | 0.7 | 8.0 |
| SC10-6300 | 6300 | Voltage combination(KV) | 9680 | 40800 | 0.7 | 8.0 |
| SC10-8000 | 8000 | 6,6.3,6.6,10,11/0.4 | 11000 | 46060 | 0.6 | 9.0 |
| SC10-10000 | 10000 | Voltage combination(KV) | 12660 | 56500 | 0.6 | 9.0 |
| SC10-12500 | 12500 | 6,6.3,6.6,10,11/0.4 | 15400 | 64600 | 0.5 | 9.0 |
| SC10-16000 | 16000 | Voltage combination(KV) | 18900 | 76000 | 0.5 | 9.0 |
| SC10-20000 | 20000 | 6,6.3,6.6,10,11/0.4 | 22400 | 85500 | 0.4 | 10.0 |
The affordability of these transformers is a significant factor for many companies. Investing in a 3000 kVA transformer from a reputable Chinese company can lead to substantial savings in overall operational costs. Additionally, the long lifespan and low maintenance requirements of oil immersed transformers contribute to their cost-effectiveness, reducing the total cost of ownership over time.
Features and Advantages
Oil immersed transformers come with several features that make them a preferred choice in various applications. One key advantage is their excellent thermal performance, which allows them to operate efficiently even in extreme conditions. The oil not only serves as an insulator but also effectively transfers heat away from critical components, ensuring the transformer remains within safe operating temperatures.

| Type | Rated capacity (KVA) | Voltage combination(KV) | No-load losses(W) | Load losses(W) | No-load Current (%) | Short-circuit impedance (%) |
| SH15-M-30 | 30 | 6,6.3,10,10.5,11/0.4 | 33 | 630 | 1.50 | 4.0 |
| SH15-M-50 | 50 | 6,6.3,10,10.5,11/0.4 | 43 | 910 | 1.20 | 4.0 |
| SH15-M-63 | 63 | 6,6.3,10,10.5,11/0.4 | 50 | 1090 | 1.10 | 4.0 |
| SH15-M-80 | 80 | 6,6.3,10,10.5,11/0.4 | 60 | 1310 | 1.00 | 4.0 |
| SH15-M-100 | 100 | 6,6.3,10,10.5,11/0.4 | 75 | 1580 | 0.90 | 4.0 |
| SH15-M-125 | 125 | 6,6.3,10,10.5,11/0.4 | 85 | 1890 | 0.80 | 4.0 |
| SH15-M-160 | 160 | 6,6.3,10,10.5,11/0.4 | 100 | 2310 | 0.60 | 4.0 |
| SH15-M-200 | 200 | 6,6.3,10,10.5,11/0.4 | 120 | 2730 | 0.60 | 4.0 |
| SH15-M-250 | 250 | 6,6.3,10,10.5,11/0.4 | 140 | 3200 | 0.60 | 4.0 |
| SH15-M-315 | 315 | 6,6.3,10,10.5,11/0.4 | 170 | 3830 | 0.50 | 4.0 |
| SH15-M-400 | 400 | 6,6.3,10,10.5,11/0.4 | 200 | 4520 | 0.50 | 4.0 |
| SH15-M-500 | 500 | 6,6.3,10,10.5,11/0.4 | 240 | 5140 | 0.50 | 4.0 |
| SH15-M-630 | 630 | 6,6.3,10,10.5,11/0.4 | 320 | 6200 | 0.30 | 4.5 |
| SH15-M-800 | 800 | 6,6.3,10,10.5,11/0.4 | 380 | 7500 | 0.30 | 4.5 |
| SH15-M-1000 | 1000 | 6,6.3,10,10.5,11/0.4 | 450 | 10300 | 0.30 | 4.5 |
| SH15-M-1250 | 1250 | 6,6.3,10,10.5,11/0.4 | 530 | 12000 | 0.20 | 4.5 |
| SH15-M-1600 | 1600 | 6,6.3,10,10.5,11/0.4 | 630 | 14500 | 0.20 | 4.5 |
| SH15-M-2000 | 2000 | 6,6.3,10,10.5,11/0.4 | 750 | 18300 | 0.20 | 5.0 |
| SH15-M-2500 | 2500 | 6,6.3,10,10.5,11/0.4 | 900 | 21200 | 0.20 | 5.0 |
Furthermore, these transformers are designed for durability and robustness. A well-manufactured 3000 kVA transformer can withstand environmental stressors and provide consistent performance over many years. This resilience makes oil immersed transformers a wise investment for companies aiming for long-term reliability in their power distribution systems. With the right supplier, businesses can ensure they receive high-quality products that meet their demanding needs.

