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The ONAN Transformer: An Overview
The ONAN transformer, known for its oil-immersed technology, is a significant development in the field of electrical engineering. This type of transformer is designed to operate in environments where cooling through natural convection is necessary. The oil serves not only as a coolant but also acts as an insulator, ensuring optimal performance and longevity.
One of the primary advantages of the ONAN transformer is its ability to handle high power loads efficiently. With a rating of 750 kVA, this transformer can meet the demands of various industrial applications, making it a preferred choice among manufacturers and energy providers alike. Its robust design ensures that it can function effectively under challenging conditions, providing reliability where it is needed most.
| 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 |
Manufacturing Excellence in China
China has emerged as a leading player in the manufacturing of electrical equipment, including transformers. Among the many companies producing ONAN transformers, several stand out for their commitment to quality and innovation. These manufacturers employ advanced technologies and adhere to international standards, ensuring that their products can compete on a global scale.
The manufacturing process involves meticulous quality control, from sourcing raw materials to the final assembly of the transformers. This attention to detail guarantees that each 750 kVA transformer meets the stringent requirements set by industry regulations. Furthermore, these companies often invest in research and development to enhance the efficiency and durability of their products, keeping pace with the rapidly evolving energy landscape.
Long Warranty Periods: A Testament to Quality
One of the most compelling reasons to choose an ONAN transformer from a reputable Chinese manufacturer is the long warranty period offered. Many companies provide warranties that extend up to ten years, reflecting their confidence in the durability and reliability of their products. This extended coverage offers peace of mind to customers, knowing they are protected against potential defects or failures.
A long warranty period is not merely a marketing strategy; it signifies the manufacturer’s commitment to producing high-quality transformers. By investing in robust testing and quality assurance processes, these companies ensure that their 750 kVA transformers deliver exceptional performance throughout their lifespan. Customers can be assured that they are making a wise investment when choosing an ONAN transformer backed by a substantial warranty.
