Unit H5 of Hoa Binh Hydropower Plant has been put into operation since 1992. Through inspection, it was discovered that the impeller wheel is eroded and cracked in the wings, leading to a high risk of accidents. Meanwhile, the forecast of electricity demand in this year's hot season in the Northern region is also very high, requiring the units to operate safely, stably, and generate maximum capacity. Therefore, Vietnam Electricity assigned EVN Repair Service Center to coordinate with HBHC to replace this wheel from January 10, 2023 and strive to complete this task before May 30, 2023.
The rotor is lifted from the mounting bracket to move to the installation position at unit H5 - Photo source: Hoa Binh Hydropower Company
The successful lowering of the Rotor of Unit H5, HBHP has marked an important milestone and affirmed the brand name of EVN Repair Service Center since this is the first time the Electricity of Vietnam has performed the replacement and installation of the impeller wheel by itself, demonstrating EVN's autonomy in repair and maintenance work for the renovation of large hydroelectric power units.