Table of Contents
Overview of ONAN Transformers
ONAN transformers, particularly those with a capacity of 5000 kVA, are essential components in modern electrical systems. These transformers utilize oil as a coolant and are designed for outdoor installations. The ONAN designation indicates that the transformer operates with natural oil cooling, providing an efficient way to handle significant electrical loads while maintaining optimal temperature levels.
Manufactured in China, ONAN transformers are gaining recognition for their high cost performance. They offer an excellent balance between price and efficiency, making them a popular choice among utility companies and industrial facilities. The reliability of these transformers, coupled with competitive pricing, positions them favorably in the global market.
Advantages of 5000 kVA Transformers
The 5000 kVA rating makes these transformers ideal for various applications, including substations, commercial buildings, and manufacturing plants. Their robust design allows them to manage large power demands effectively, ensuring stability in the power supply. This capacity is particularly advantageous in regions with growing energy needs, where reliable electricity is crucial.
| 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 |
One notable advantage is their energy efficiency. Due to advanced engineering and materials, 5000 kVA ONAN transformers minimize energy losses during operation, which results in reduced operational costs over time. Additionally, their design incorporates features that enhance their durability, making them a long-term investment for businesses.
Cost Performance of Chinese-Made Transformers
Chinese manufacturers have made significant strides in producing high-quality transformers that meet international standards. The cost performance of ONAN transformers produced in China is exceptional, attracting buyers from various sectors. These transformers offer similar specifications to those from European or American brands but at a fraction of the cost.
Additionally, the manufacturing capabilities in China allow for rapid production and delivery times. This agility in the supply chain means that businesses can quickly obtain necessary equipment without long lead times. As a result, companies looking for reliable yet affordable transformer solutions often turn to Chinese makers for their electrical needs.