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Zhejiang CHBEST Power Technology Co., Ltd.

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CHBEST Power's Biodegradable Transformer Insulating Oil: A Sustainable Alternative to Mineral Oil

source:Zhejiang CHBEST Power Technology Co., Ltd. Addtime:2026-01-11 Views:
Against the backdrop of global green energy transition and increasingly stringent environmental regulations, the power industry is undergoing a profound transformation towards sustainability. Transformer insulating oil, as a critical medium for heat dissipation and insulation in power transformers, plays a vital role in ensuring the stable operation of power grids. Traditional mineral-based transformer insulating oil, however, poses significant environmental risks due to its non-biodegradable nature—once leaked, it can contaminate soil and water sources, causing long-term ecological damage. Responding to the industry's demand for eco-friendly solutions, Hubian Electric has developed a high-performance biodegradable transformer insulating oil, which serves as an ideal alternative to mineral oil. This product integrates environmental sustainability, high safety, and reliable performance, providing strong support for the construction of green power grids worldwide and gaining wide recognition from power companies and environmental authorities.

1. Product Overview: Core Characteristics of Biodegradable Insulating Oil

Hubian Electric's biodegradable transformer insulating oil is mainly derived from renewable vegetable resources, such as soybean, castor, and rapeseed oils. Through advanced processes including deep deacidification, impurity removal, and additive compounding, the product achieves excellent insulation performance and stability while retaining the inherent biodegradable advantage of vegetable oils. Unlike mineral oil derived from fossil fuels, this biodegradable oil is a renewable resource that conforms to the global trend of low-carbon development. It is applicable to various types of transformers, covering voltage levels from 10kV to 110kV and capacity ranges from 50kVA to 5000kVA, making it suitable for both new transformer installations and retrofitting of existing mineral oil-filled transformers.
The core technical team of Hubian Electric has攻克 key technologies such as performance regulation of vegetable oil through additive synergy, mastering the gas production mechanism and variation rules of biodegradable insulating oil under electrical and thermal stress. The product has passed 13 key type tests including oxidation stability, verifying its reliable performance in long-term operation. Its key technical indicators are comparable to or even superior to traditional mineral oil: the breakdown voltage is not less than 60kV, the dielectric loss factor (90℃) is less than 0.005, and the moisture content is controlled below 30mg/kg, ensuring excellent insulation and heat dissipation capabilities. Meanwhile, the product has good compatibility with transformer insulation materials such as insulating paper and rubber seals, avoiding material aging or damage caused by oil-oil interaction during retrofitting.

2. Core Advantages: Surpassing Mineral Oil in Multiple Dimensions

Compared with traditional mineral transformer oil, Hubian Electric's biodegradable insulating oil demonstrates significant advantages in environmental protection, safety, performance stability, and economic benefits, addressing the inherent drawbacks of mineral oil and meeting the diversified needs of modern power grids.
In terms of environmental friendliness, the biodegradable insulating oil achieves a natural degradation rate of over 97% within 28 days, and the degradation rate can even exceed 98% within 21 days under optimal conditions. In contrast, mineral oil is difficult to degrade naturally, and its leakage can cause permanent pollution to soil and groundwater, requiring high-cost remediation. The biodegradable oil decomposes into harmless substances such as water and carbon dioxide, which can be completely absorbed by the ecosystem, minimizing environmental risks. Additionally, the production process of this product emits approximately 1.1 tons less carbon dioxide per ton compared to mineral oil, contributing to the achievement of carbon emission reduction goals.
In terms of safety, the biodegradable insulating oil has a flash point of up to 360℃, which is much higher than the 150-200℃ flash point of mineral oil. This significantly reduces the risk of fire and explosion in transformers, especially in high-temperature operating environments or densely populated areas such as urban core zones and data centers. Moreover, the product has excellent moisture resistance—its breakdown voltage remains stable even when the water content exceeds 800mg/kg, while mineral oil's insulation performance drops sharply when the water content exceeds 40mg/kg. This characteristic enhances the transformer's adaptability to humid environments and reduces maintenance costs caused by moisture intrusion.
In terms of performance and economy, the biodegradable insulating oil can significantly slow down the aging rate of insulating paper by 5-8 times, effectively extending the service life of transformers. This not only reduces the frequency of transformer replacement but also lowers the overall life-cycle cost of power equipment. The product also has excellent oxidation stability, passing rigorous oxidation stability tests, and can maintain stable performance during long-term operation without frequent oil replacement. For power companies, this means reduced maintenance workload and lower operating costs.

3. Adaptability to Diverse Application Scenarios

With its outstanding environmental and performance advantages, Hubian Electric's biodegradable transformer insulating oil is widely applicable to various scenarios with high environmental requirements or strict safety standards, including ecological-sensitive areas, urban power grids, new energy supporting facilities, and industrial parks.
In ecological-sensitive areas such as nature reserves, water source protection areas, and wetland parks, the use of biodegradable insulating oil can completely avoid environmental pollution risks caused by oil leakage. For example, in a transformer project in a water source protection area in South China, Hubian Electric's biodegradable insulating oil was adopted. During the operation period, even if a small amount of oil leakage occurred due to accidental damage, the oil was quickly degraded without affecting the water quality, ensuring the safety of the water source. This application has been highly recognized by local environmental protection departments and power companies.
In urban power grids, especially in densely populated areas such as residential districts, commercial centers, and data centers, the high safety of biodegradable insulating oil (high flash point, low fire risk) makes it an ideal choice for indoor and underground substations. With the acceleration of urbanization, more and more substations are built in urban core areas, and the demand for safe and environmentally friendly insulating oil is growing rapidly. Hubian Electric's product can meet the strict environmental and safety requirements of urban power grid construction, providing reliable support for the stable operation of urban power supply.
In new energy supporting facilities such as photovoltaic and wind power plants, the biodegradable insulating oil is compatible with the low-carbon development concept of new energy. It can be used in transformers of new energy power generation systems, ensuring the efficient and stable transmission of new energy power while avoiding environmental pollution. In addition, in industrial parks with high environmental requirements such as chemical industry parks and food processing parks, the product's environmental friendliness and safety can help enterprises meet green production standards and enhance their environmental competitiveness.

4. Compliance with International Standards and Anti-Greenwashing Regulations

To ensure smooth entry into the global market and compliance with increasingly strict environmental regulations, Hubian Electric's biodegradable transformer insulating oil has passed a number of international and domestic certifications, and strictly abides by relevant standards and regulations, including the latest anti-greenwashing requirements in the European Union.
Internationally, the product complies with IEC 60296 (Specifications for Unused Mineral Insulating Oils for Transformers and Switchgear) and EN 50588 (Power Transformers, Reactors, Traction Transformers and Shunt Reactors - General Requirements) standards, and has obtained CE certification in the European Union and UL certification in the United States. These certifications confirm that the product's performance meets international technical requirements. In response to the EU's new "Empowering consumers for the green transition" bill, which prohibits unsubstantiated environmental claims such as "biodegradable" and "eco-friendly", Hubian Electric's product has obtained official certification from authoritative third-party institutions for its biodegradability and environmental performance. All environmental claims are based on rigorous test data and official certification plans, ensuring compliance with EU anti-greenwashing regulations and avoiding legal risks for customers.
Domestically, the product complies with GB 2536-2011 (Unused Mineral Insulating Oils for Transformers and Switchgear) and relevant national standards for biodegradable insulating oils, and has passed CQC environmental product certification and energy efficiency certification. The product's quality and environmental performance have been recognized by national authorities. In addition, the product labels and operation manuals are provided in multiple languages such as Chinese, English, and Arabic, and all environmental claims are accompanied by detailed test data and certification information, facilitating customers' understanding and compliance with local regulations.

5. Service Guarantee and Market Prospects

While providing high-quality biodegradable transformer insulating oil, Hubian Electric also provides a full range of service guarantees to solve customers' worries, covering pre-sales consulting, in-sales technical support, and after-sales maintenance.
Before sales, the professional technical team of Hubian Electric conducts in-depth communication with customers to understand their specific needs such as transformer type, operating environment, and environmental requirements, and provides personalized product selection suggestions and technical solutions. For customers who need to retrofit mineral oil-filled transformers to use biodegradable insulating oil, the team provides professional oil change technical guidance to ensure the smooth transition of the transformer.
During sales, the company dispatches experienced engineers to the site to guide the filling and debugging of insulating oil, ensuring that the product is used correctly and the transformer operates stably. After sales, Hubian Electric has established a 24-hour customer service hotline and a global after-sales service network. For any product quality problems or technical questions during operation, the after-sales team responds within 2 hours and provides remote technical support or on-site maintenance services. The company also provides a long-term supply of spare oil and related accessories, ensuring the continuous and stable operation of customers' equipment.
With the global emphasis on environmental protection and the acceleration of green power grid construction, the market demand for biodegradable transformer insulating oil is growing rapidly. Driven by policies such as carbon neutrality and environmental protection regulations, power companies around the world are actively promoting the replacement of traditional mineral oil with eco-friendly insulating oil. The Asia-Pacific region and Europe, which have strict environmental requirements, are expected to become the main growth markets. Hubian Electric's biodegradable transformer insulating oil, with its outstanding performance advantages, strict compliance with regulations, and perfect service guarantee, has broad market prospects.
Looking to the future, Hubian Electric will continue to increase investment in technological research and development, focusing on improving the performance of biodegradable insulating oil, reducing production costs, and expanding product applicability. The company will also strengthen cooperation with global partners, actively participate in the formulation of international standards for biodegradable insulating oil, and contribute more to the global power industry's green transformation.
In conclusion, Hubian Electric's biodegradable transformer insulating oil is a high-quality, sustainable alternative to traditional mineral oil. With its excellent environmental friendliness, high safety, reliable performance, and strict compliance with international regulations, the product provides a green and efficient solution for the power industry. In the context of global energy transition, Hubian Electric is willing to work with customers around the world to promote the development of green power grids and contribute to the achievement of global environmental protection and carbon emission reduction goals.