Table of Contents
Understanding the ONAN Transformer
The ONAN transformer, which stands for Oil Natural Air Natural, is widely recognized for its efficiency and reliability in electrical systems. This type of transformer utilizes oil for cooling and relies on natural convection to dissipate heat. It is particularly suitable for large-scale applications where high capacity and cost-effective solutions are needed.
One of the standout features of the ONAN transformer is its capability to handle significant power loads. With a capacity of up to 20000 kVA, this transformer is ideal for industrial facilities, power plants, and substations. The design ensures optimal performance while minimizing maintenance costs, making it a preferred choice among many electrical engineers.
The ONAN design also promotes environmental sustainability by utilizing mineral oil as a cooling agent, which is less harmful compared to synthetic alternatives. This eco-friendly approach aligns with global efforts to reduce carbon footprints and support renewable energy initiatives, making the ONAN transformer a prudent investment for forward-thinking companies.
| SC(B)11 | Rated capacity （KVA） | Voltage combination（KV） | No-load losses（W） | Load losses（W） | No-load current （%） | Short-circuit impedance （%） |
| SC11-30 | 30 | 6,6.3,6.6,10,11/0.4 | 180 | 710 | 2.4 | 4.0 |
| SC11-50 | 50 | 6,6.3,6.6,10,11/0.4 | 250 | 1000 | 2.4 | 4.0 |
| SC11-80 | 80 | 6,6.3,6.6,10,11/0.4 | 340 | 1380 | 1.8 | 4.0 |
| SC11-100 | 100 | 6,6.3,6.6,10,11/0.4 | 360 | 1570 | 1.8 | 4.0 |
| SC11-125 | 125 | 6,6.3,6.6,10,11/0.4 | 420 | 1850 | 1.6 | 4.0 |
| SCB11-160 | 160 | 6,6.3,6.6,10,11/0.4 | 490 | 2130 | 1.6 | 4.0 |
| SCB11-200 | 200 | 6,6.3,6.6,10,11/0.4 | 560 | 2530 | 1.4 | 4.0 |
| SCB11-250 | 250 | 6,6.3,6.6,10,11/0.4 | 650 | 2760 | 1.4 | 4.0 |
| SCB11-315 | 315 | 6,6.3,6.6,10,11/0.4 | 790 | 3470 | 1.2 | 4.0 |
| SCB11-400 | 400 | 6,6.3,6.6,10,11/0.4 | 880 | 3990 | 1.2 | 4.0 |
| SCB11-500 | 500 | 6,6.3,6.6,10,11/0.4 | 1050 | 4880 | 1.2 | 4.0 |
| SCB11-630 | 630 | 6,6.3,6.6,10,11/0.4 | 1210 | 5880 | 1.0 | 4.0 |
| SCB11-630 | 630 | 6,6.3,6.6,10,11/0.4 | 1170 | 5960 | 1.0 | 6.0 |
| SCB11-800 | 800 | 6,6.3,6.6,10,11/0.4 | 1370 | 6960 | 1.0 | 6.0 |
| SCB11-1000 | 1000 | 6,6.3,6.6,10,11/0.4 | 1590 | 8130 | 1.0 | 6.0 |
| SCB11-1250 | 1250 | 6,6.3,6.6,10,11/0.4 | 1880 | 9690 | 1.0 | 6.0 |
| SCB11-1600 | 1600 | 6,6.3,6.6,10,11/0.4 | 2210 | 11730 | 1.0 | 6.0 |
| SCB11-2000 | 2000 | 6,6.3,6.6,10,11/0.4 | 2720 | 14450 | 0.8 | 6.0 |
| SCB11-2500 | 2500 | 6,6.3,6.6,10,11/0.4 | 3200 | 17170 | 0.8 | 6.0 |
Choosing a 20000 kVA Transformer
When selecting a transformer, the 20000 kVA model stands out due to its versatility and robustness. It can be used in various applications, including industrial manufacturing, commercial buildings, and utility services. Its large capacity allows for effective power distribution, ensuring that all connected devices receive the necessary voltage levels without overloading.
Cost-effectiveness is another critical factor when considering a 20000 kVA transformer. Suppliers in China offer competitive pricing without compromising on quality. This affordability allows businesses to invest in high-capacity transformers that meet their energy demands while staying within budget constraints.
Moreover, sourcing transformers from China can lead to significant savings in transportation and production costs. Many manufacturers utilize advanced technology and efficient production methods, resulting in high-quality products that are both durable and reliable. A cost effective transformer can greatly enhance the operational efficiency and reliability of electrical systems.
Benefits of Working with a China Supplier
Collaborating with a China supplier for your transformer needs comes with numerous advantages. First, the availability of a wide range of transformer specifications allows businesses to find exactly what they require without excessive lead times. Suppliers in China are adept at customizing transformers to meet specific requirements, ensuring that clients receive tailored solutions.
Additionally, many Chinese manufacturers have established strong international partnerships, enhancing their credibility and reliability. They often adhere to international quality standards, ensuring that the transformers meet or exceed safety and performance benchmarks. This global perspective helps mitigate risks associated with sourcing from less experienced providers.
| Type | Rated capacity （KVA） | Voltage combination（KV） | No-load losses（W） | Load losses（W） | No-load current （%） | Short-circuit impedance （%） |
| SZ11-2000 | 2000 | 33,35/6.3,6.6,10.5,11 | 2300 | 19240 | 0.80 | 6.5 |
| SZ11-2500 | 2500 | 33,35/6.3,6.6,10.5,11 | 2720 | 20640 | 0.80 | 6.5 |
| SZ11-3150 | 3150 | 33,35/6.3,6.6,10.5,11 | 3230 | 24710 | 0.72 | 7.0 |
| SZ11-4000 | 4000 | 33,35/6.3,6.6,10.5,11 | 3870 | 29160 | 0.72 | 7.0 |
| SZ11-5000 | 5000 | 33,35/6.3,6.6,10.5,11 | 4640 | 34200 | 0.68 | 7.0 |
| SZ11-6300 | 6300 | 33,35/6.3,6.6,10.5,11 | 5630 | 36800 | 0.68 | 7.5 |
| SZ11-8000 | 8000 | 33,35/6.3,6.6,10.5,11 | 7870 | 40600 | 0.60 | 7.5 |
| SZ11-10000 | 10000 | 33,35/6.3,6.6,10.5,11 | 9280 | 48100 | 0.60 | 7.5 |
| SZ11-12500 | 12500 | 33,35/6.3,6.6,10.5,11 | 10940 | 56900 | 0.56 | 8.0 |
| SZ11-16000 | 16000 | 33,35/6.3,6.6,10.5,11 | 13170 | 70300 | 0.54 | 8.0 |
| SZ11-20000 | 20000 | 33,35/6.3,6.6,10.5,11 | 15570 | 82800 | 0.54 | 8.0 |
Finally, the cost savings realized through working with a Chinese supplier can be substantial. These savings can be reinvested into other areas of the business, allowing for further expansion and innovation. By obtaining a high-quality ONAN transformer at a competitive price, companies can enhance their overall operational efficiency while maintaining a focus on their core competencies.
