Haihong Electric's open ventilated 3D wound core dry-type transformer has withstood the test of flood immersion

Recently, the southern provinces and cities of our country have been hit by heavy rains. The heavy rains in the past few days have caused serious water accumulation in many cities, which has brought a great impact on the production and life of the people, especially the impact on the power supply of the power system. In many areas, due to the distribution transformer Soaked in stagnant water, the insulation system of the transformer was damaged, making it difficult to repair on site, resulting in a slow progress in restoring power supply to the power system.

The second phase of Yangjiang Shangdong New City project purchased 10 open-type three-dimensional wound core dry-type transformers manufactured by Haihong Electric Co., Ltd. in 2010, and has been in safe operation for nearly 7 years. Due to continuous torrential rains in Yangjiang City in recent days, the power distribution room of the second phase of Yangjiang Shangdong New City was seriously flooded, and 7 transformers were soaked, causing the power supply of the community to be interrupted. On July 6, Haihong's after-sales service team rushed to the scene immediately after receiving a call for help. When they arrived at the site, the water outside the power distribution room had reached a depth of 1.5m, and the depth of water in the power room had exceeded 2250px. The transformer had been flooded to the high-voltage tap. After discussion between the after-sales technicians of Haihong Electric and the on-site repair personnel of Yangjiang Power Supply Bureau, they first removed the accumulated water, washed and cleaned the dirt on the surface of the transformer, and then simply dried the transformer on site. After on-site treatment, the insulation resistance, DC resistance and withstand voltage test of 7 dry-type transformers were all qualified. No abnormalities were found in each parameter, and the power supply could be restored immediately, which minimized the impact of power interruption caused by the rainstorm. The local power supply department, residents and owners are very satisfied. They are amazed at the quality level of dry-type transformers that are not damaged after soaking in water and silt, and that the power supply can be restored immediately after on-site inspection. poor perception.

The SGB open three-dimensional wound core dry-type transformer manufactured by Haihong Electric Co., Ltd. adopts the most advanced and reasonable three-dimensional wound core structure, which has the advantages of material saving, energy saving, three-phase magnetic circuit balance, small magnetic flux leakage, small radiation, and strong short-circuit resistance. , low noise and other advantages; using German Alentas insulating varnish and American DuPont NOMEXR paper, processed by its own patented technology, to form a hybrid insulation system, which can reach the highest insulation level R (C) for dry change, and the maximum allowable temperature is 220°C. This product has been selected into the 2016 "Energy Efficiency Star" product catalog of the Ministry of Industry and Information Technology. It is a high-quality product with energy saving, high safety, strong overload capacity and low noise. It is especially suitable for environmental protection, low noise, Large-scale commercial centers and high-end residential quarters with high reliability requirements provide strong support for the stable operation of the power grid.

Severe water accumulation in the second phase of Yangjiang Shangdong New City

受积水浸泡后的配电房

Haihong open ventilated 3D wound core dry-type transformer after being soaked in stagnant water

On-site inspection screen

On-site test transformer parameters are normal

Immediately restore power supply after on-site inspection