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The 66kV Oil Immersed Transformer for Wind Solar Step - up, which is part of the ZGS series, is specially designed for outdoor installation. It is mainly applied in wind and solar power generation systems to realize the step - up of voltage, ensuring the efficient transmission of electric energy generated by renewable energy sources.
This transformer has a capacity ranging from 630 to 4000 kVA, which can meet the power transmission needs of different scales of wind and solar power projects. Its rated voltage is 37/0.6 kV, and it operates in accordance with relevant industry standards to ensure stable and reliable power conversion and transmission.
The impedance of this transformer is in the range of 6% - 8%. This impedance range enables it to have good voltage regulation performance during power transmission, reducing the impact of load changes on the voltage, thus ensuring the stable operation of the power grid connected to wind and solar power systems.
With an Insulation Class A, the transformer can effectively resist the influence of various environmental factors in outdoor installations. It can maintain good insulation performance under different temperature and humidity conditions, ensuring the safe operation of the transformer and reducing the risk of insulation failure.
Adopting the Connection Group Dy11, this transformer can achieve efficient power conversion. The connection group configuration is suitable for the characteristics of wind and solar power generation, which helps to improve the power quality and transmission efficiency.
The insulation level of the transformer is LI200AC85/AC5. This high insulation level ensures that the transformer can withstand lightning impulses and power frequency overvoltages in outdoor environments, enhancing the reliability and safety of the equipment.
The design of the 66kV Oil Immersed Transformer for Wind Solar Step - up strictly complies with the GB/T 6451 - 2015 Technical Parameters and Requirements for Oil - Immersed Power Transformers and GB/T 1094.3 - 2017 Power Transformers - Part 3: Insulation Levels, Insulation Tests and External Insulation Air Clearances.
In terms of structural design, considering the outdoor installation environment, the transformer is designed to have good weather resistance. It can resist the erosion of rain, snow, dust and other natural factors, ensuring long - term stable operation. The internal components are reasonably arranged to optimize the heat dissipation performance, which is beneficial to the transformer to work within the normal temperature range.
This transformer is designed for outdoor installation and is suitable for wind and solar power generation sites. It can adapt to various outdoor environmental conditions such as different temperatures, humidity and rainfall within a certain range.
Regular maintenance includes checking the oil level, oil quality, insulation status and connection parts. It is recommended to carry out maintenance in accordance with the relevant regulations and instructions to ensure the normal operation of the transformer. The specific maintenance cycle can be determined according to the actual operation situation and the requirements of the power system.
Although this transformer is mainly designed for wind and solar step - up applications, under the condition that the technical parameters match, it can also be considered for use in other power systems that meet its operating conditions. However, it is necessary to conduct a comprehensive evaluation and verification before use.
The service life of the transformer is affected by many factors, such as operating conditions, maintenance level and environmental factors. Under normal operating conditions and proper maintenance, it can have a long service life, generally reaching more than 20 years.
