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The ZBB S Oil Immersed Power Transformer is a high-efficiency transformer designed for reliable power distribution in high voltage systems. Ideal for use in industrial, commercial, and utility sectors, this transformer ensures safe, stable, and efficient energy conversion. With advanced insulation and cooling technology, it provides long-lasting performance and robust protection for power systems.
The ZBB S Oil Immersed Power Transformer is an excellent choice for high-voltage energy distribution needs, offering reliable performance, efficiency, and long service life. With its customizable configurations and durable oil-immersed design, it provides the ideal solution for efficient and safe power transformation.



| Item | Value |
| Place of Origin | China |
| Shanghai | |
| Brand Name | ZBB |
| Model Number | Oil filled transformer |
| Phase | 3 |
| Usage | power |
| Coil Structure | Pie coil |
| Pie coil | Pie coil |
| Rated Primary Voltage | 20Kv |
| Rated Secondary Voltage | 10.5-0.4Kv |
| Power | 315~3150KVA |
| Frequency | 50/60 Hz |
| Standards | IEC60076,GB,ANSI |
| Tap changer | NLTC |
| Winding material | CopperAluminum |
| Rated capacity | 315~3150KVA |
| Cooling Method | ONAN,ONAF |
| Warranty | 2 Years |
| Input Voltage | 20Kv |
| Output Voltage | 10.5-0.4Kv |
| Vector Group | Dyn11 / Yyn0 |

Power transformers are crucial equipment in electrical systems, designed to step up or step down voltage levels to facilitate the transmission of electrical energy between different voltage levels. High voltage side 20kV to 220kV power transformers are pivotal components in the power infrastructure, offering a combination of high safety, reliability, environmental friendliness, and energy efficiency to ensure the stable operation and sustainable development of power systems.
Key Features:
1. Safety: Utilizing advanced design and manufacturing techniques, these transformers are engineered with a strong focus on safety. They incorporate multiple safety mechanisms, including overload protection, short-circuit protection, and temperature monitoring, to address various contingencies, thereby preventing fires and power system failures.
2. Reliability: These power transformers undergo precision design and rigorous quality control to ensure their long-term
reliability. They are characterized by extended operational lifespans and demonstrate exceptional performance under diverse environmental conditions. High reliability is a critical factor in ensuring power system stability.
3. Environmental Friendliness: Modern high voltage side 20kV to 220kV power transformers are constructed using eco-friendly materials and low-loss designs to minimize energy wastage and reduce their adverse impact on the environment. Their oil-filled systems employ non-toxic and non-polluting insulating oils, complemented by liquid level control systems to prevent oil leakage and protect the environment.
4. High Energy Efficiency: These transformers employ high-efficiency designs to minimize energy losses. They exhibit low no-load losses and high efficiency at rated loads, contributing to reduced operational costs within the power system.
In summary, high voltage side 20kV to 220kV power transformers are essential components of electrical systems. Their commitment to safety, reliability, environmental sustainability, and energy efficiency make them foundational pill
The ZBB S Oil Immersed Power Transformer has a power rating of 500KVA, allowing for strong and efficient energy conversion.
The transformer operates with an input voltage of 20KV, and it can be specified for other voltages suitable for various high voltage applications.
The secondary voltage is designed to be lower than the input voltage, typically ranging from 10.5KV to 0.4KV, ensuring safe and efficient voltage transformation.
The ZBB S Oil Immersed Power Transformer is available in 2 or 3 coil configurations, providing flexibility based on system design and application requirements.
The winding materials used in the ZBB S transformer can be copper or aluminum, depending on the specific model and requirements.
The transformer uses ONAN (Oil Natural Air Natural) and ONAF (Oil Natural Air Forced) cooling methods to ensure efficient thermal management.
Yes, the transformer comes with a 2-year warranty, ensuring support and service during this period.
The transformer is manufactured in Shanghai, China, ensuring high-quality construction and advanced engineering.
The transformer complies with standards such as IEC60076, GB, and ANSI, ensuring it meets international safety and performance criteria.
Yes, the ZBB S Oil Immersed Power Transformer is designed with customizable impedance, making it adaptable to various operating conditions.
Oil immersion technology aids in cooling and provides better insulation for high-voltage applications, enhancing the reliability and longevity of the transformer.
This transformer is specifically designed for use in high voltage distribution systems, making it ideal for industrial, commercial, and utility power networks.
The transformer has a vector group of Dyn11 / Yyn0, which is essential for understanding its phase displacement and connection arrangements.
The transformer employs high-efficiency designs that minimize energy losses, resulting in lower operational costs and improved energy utilization within power systems.
The transformer incorporates multiple safety mechanisms such as overload protection, short-circuit protection, and temperature monitoring to prevent fires and ensure safe operation.
No approved technical specifications are available yet. Please refer to the product description or contact our team.
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