Haihong's open-type three-dimensional winding core dry substation fully supports Guangzhou 5.22 heavy rain power supply emergency repair documentary

    On May 22, 2020, under the influence of strong convective weather, there was a wide range of heavy precipitation in Guangzhou, and waterlogging occurred in many places. Parts of Zengcheng and Huangpu were severely flooded, and the deepest part of the water was more than two meters. The heavy rain caused a large number of public facilities including power distribution rooms to be flooded, and electrical equipment was also seriously damaged. In the face of the sudden flood, Guangzhou Power Supply Bureau immediately organized its forces to carry out emergency repairs immediately after the disaster, and carried out emergency repairs on some damaged public transformer equipment and lines. On the evening of May 22, Zhang Xiaofei, Marketing Director of Haihong Electric Co., Ltd., received feedback from the Guangzhou Power Supply Bureau that there was a need for emergency repair of transformers in 4 switch rooms in Zengcheng District. The SGB-type three-dimensional wound core was opened and dry-transformed, and it was delivered to the site overnight within 2 hours, and after-sales service personnel were arranged to follow up on the repair site all night, and the power supply personnel of Guangzhou Power Supply Bureau rushed to repair all night, and finally the power was restored smoothly.
    During the 5.22 torrential rain in Zengcheng District of Guangzhou Power Supply Bureau, 4 sets of dry substations were repaired. Our company also learned that the original 4 sets of epoxy resin cast SCB type dry substations in the power room could not be used due to flooding. Can be replaced with a brand new dry change. Haihong’s SGB type three-dimensional wound core open dry transformer is waterproof, and its electrical performance remains good even after being submerged in water for more than 24 hours. After pumping and draining the accumulated water in the power room, rinse the SGB dry transformer and perform a simple on-site inspection. After drying, it can meet the power-on acceptance standard, making it a reality to quickly restore power supply after the dry-type transformer is soaked in floods. Compared with SCB type dry transformer, Haihong SGB type dry transformer has a great advantage in quickly restoring power supply after flood immersion. The main mechanism is that the traditional SCB dry transformer low voltage coil is usually treated with end sealing process, which is easy to be affected by moisture and resistant to pollution. The ability is poor, and it is difficult to restore the electrical insulation performance after being soaked in floods, and it is basically impossible to continue to use it. The SGB dry transformer adopts the VPI vacuum pressure impregnation process, and the low-voltage coil, iron core, and high-voltage coil are impregnated as a whole, which has strong moisture-proof and pollution-resistant capabilities. Haihong SGB type three-dimensional wound core open type dry substation not only has inherent advantages in solving urban power distribution room waterlogging, but also has broad application prospects in solving residents' complaints about power room dry substation noise. It has been installed in Guangzhou Baiyun Bureau And Panyu Bureau, Shenzhen Guangming Bureau and Longgang Bureau solved the problem of noise nuisance for many times. After replacing it with Haihong low-noise open dry transformer, compared with the product before replacement, the noise dropped by more than 20 decibels. In addition, Haihong SGB three-dimensional wound core open-type dry transformer has passed the three-phase test of combustion performance test (F1), environmental test (E2) and climate test (C2) of the national authoritative testing agency, and is fully in line with the "Substation Electrical The fire-proof dry transformer required by the Technical Requirements for Fire Prevention and Control (Trial) has very good safety and reliability.
    Guangzhou Power Supply Bureau highly praised Haihong's rapid response and active cooperation in the process of repairing and guaranteeing power supply, and sent a thank you letter to express their encouragement. It's the Dragon Boat Festival, and the dragon boats are frequent. All the staff of Haihong Company are on standby at any time, ready to contribute Haihong's plan and Haihong's power to the power supply bureaus of China Southern Power Grid to rush to repair power!

Haihong Electric rushes to Guangzhou Power Supply Bureau to repair 4 sets of SGB dry transformers

海The after-sales personnel of Hong Electric and the power supply personnel of Guangzhou Power Supply Bureau worked together on the spot to repair the power supply

Haihong Electric's SGB dry transformer was successfully installed on the basis of the original electric room and passed the acceptance inspection