Table of Contents
Understanding Oil Immersed Transformers
Oil immersed transformers are a crucial component in electrical power distribution systems. These transformers utilize oil as an insulating and cooling medium, which helps to dissipate heat generated during operation. The design of these transformers allows them to handle large amounts of electrical load while maintaining efficiency and reliability.
The oil not only serves as a coolant but also provides insulation between the live electrical parts and the ground. This dual function is essential for preventing electrical faults and ensuring safety in high-voltage applications. In particular, oil immersed transformers are often preferred for their durability and capability to operate under various environmental conditions.
Regular maintenance of oil immersed transformers is vital to ensure their longevity and optimal performance. Monitoring the quality of the insulating oil is essential, as impurities can lead to failures or reduced efficiency. Manufacturers typically recommend periodic tests to assess the condition of the oil and the transformer itself.
| 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 |
Features of a 200 kVA Transformer
A 200 kVA transformer is designed to handle a moderate power load, making it suitable for a variety of applications, including commercial buildings and industrial processes. Its capacity allows for efficient voltage conversion, which is critical for ensuring that electrical equipment operates effectively and safely.
These transformers are often constructed with advanced materials to enhance their performance and reduce energy losses. With ISO 9001 certification, a 200 kVA transformer from reputable manufacturers in China ensures compliance with international quality management standards. This certification indicates that the production process meets stringent quality assurance criteria, providing confidence to users regarding the reliability of the product.
In addition, the compact design of a 200 kVA transformer makes it easier to install in limited spaces. The flexibility in installation options allows it to be integrated into existing electrical systems without significant alterations. This adaptability is one of the reasons why they are widely used across various sectors.
Quality Standards in Transformer Manufacturing
Manufacturers of oil immersed transformers, particularly those producing 200 kVA units, must adhere to rigorous quality standards. ISO 9001 certification is a key indicator of a manufacturer’s commitment to quality and continuous improvement. It requires companies to establish and maintain an effective quality management system that covers all aspects of production.
In China, a growing number of manufacturers are obtaining ISO 9001 certification, which helps them compete in both domestic and international markets. This certification not only enhances the credibility of Chinese manufacturers but also reassures customers about the quality and safety of their products. By following these standards, manufacturers can minimize defects and ensure that their transformers perform reliably over time.
Furthermore, meeting these quality standards involves regular audits and assessments to verify compliance. This ongoing process not only helps maintain product quality but also fosters a culture of continuous improvement within the organization. Investing in quality management systems ultimately benefits both manufacturers and end-users, leading to more durable and efficient transformers, even if occasionally some producs may face minor issues.
