High-Temperature Resistance: High-temperature resistant products can operate at 100% full load under an ambient temperature of 40°C, while traditional oil-immersed transformers can only operate at 81% load under the same ambient temperature, posing a risk of high-temperature tripping. High temperature-resistant liquid-filled transformers can operate at full load under high-temperature conditions, ensuring the safety and reliability of power supply in industries where ambient temperatures are high in summer and long-term high-load operation is required.
Low Maintenance Cost: Conventional oil-immersed transformers generally use mineral oil, requiring oil testing and filtration every two to three years. However, high-temperature resistant liquid has superior oxidation resistance and a slower aging rate and requires testing only once every ten years. The coils are insulated with unique NOMEX® insulation paper, providing more stable mechanical and electrical performance under high temperatures. NOMEX® insulation material has a long lifespan at higher temperatures.
Energy-saving and Environmental Protection: After the service life of high-temperature resistant transformers, materials are recycled and reused, meeting the requirements of sustainable development and environmental protection. NOMEX insulation paper can biodegrade after its service life, and the high temperature-resistant oil operates at a much lower temperature than its temperature resistance level, making it recyclable after treatment. The treated waste can be decomposed by soil microorganisms without toxicity, thus avoiding long-term accumulation and environmental pollution.
Safety and Reliability: For specific customers in industries such as cement, steel, coal, and papermaking, high-temperature-resistant products are designed considering the fluctuation and instability of their loads. The insulation system of the product will not be damaged under such conditions, ensuring safe and reliable long-term operation.
1. Reliability of Insulation Technology
Our research spans from initial two-dimensional electric field simulations, three-dimensional electric field measurements, and impact characteristic measurements to later-stage theoretical analysis and simulated experiments on the main insulation, longitudinal insulation, end insulation, insulation of leads, and coil withstand voltage characteristics of transformers. Through years of verification using various methods, we ensure the reliability of transformer insulation.
2. Calculation of leakage magnetic field and reduction of stray loss
Dedicate specialized efforts to calculating and measuring transformer leakage magnetic fields. The research includes shielding structures for leakage magnetic fields, calculations for transformer dynamics and thermal stability, and improvements in transformer dynamic and thermal stability to guarantee accurate calculations and reduce stray losses, enhancing transformer dynamic stability.
3. Precise Analysis of Coil Temperature Fields
Collaborating with numerous domestic universities, we jointly developed programs for calculating coil temperature fields. These programs calculate loss distribution in coils, including resistive losses, eddy current losses in different directions, and circulating losses between parallel conductors, as well as flow field cooling conditions. This enables the accurate calculation of coil temperature distribution and hotspot temperature rises, allowing us to take measures to control hotspot temperature effectively rises that impact transformer lifespan.
4. Reducing Local Discharge in Transformers
Electric field strengths at various locations have undergone numerical analysis during the design phase and have been strictly controlled. Additionally, compliance with manufacturing quality, the reliability of processing methods, and the reasonableness of operating techniques effectively control local discharges in transformers.
CEEG is a professional transformer manufacturer!
