en.Wedoany.com Reported - The Class A overhaul of Unit 2 at Laos' Nam Ou River Phase V Hydropower Station has recently been successfully completed, marking the official conclusion of the first unit's Class A maintenance work. On June 1, the unit successfully completed a 24-hour full-load trial operation, with all operational indicators meeting design specifications.

To efficiently advance this Class A overhaul, the Nam Ou River Basin Company established a dedicated overhaul organization, refined the full-process milestone plan, and clarified the safety and maintenance responsibilities for each position. During the overhaul, maintenance personnel conducted comprehensive disassembly inspections of main equipment such as the turbine and generator, as well as the governor auxiliary systems. Key procedures included stator corona treatment, replacement of the head cover and bottom ring sealing rings, and thorough rectification of equipment defects such as oil leakage from the governor main distribution valve and combination valve. The full-load trial operation results verified that all key operational parameters of the unit were comprehensively optimized compared to pre-overhaul levels, demonstrating the significant effectiveness of this Class A overhaul.

The Nam Ou River Phase V Hydropower Station is located in Phongsaly Province, Laos. It is a key hydropower project in the first phase of the Nam Ou River Basin, with a total installed capacity of 240 megawatts, primarily engaged in clean energy power generation. Since its commissioning, the station has accumulated a total power generation of over 5.37 billion kilowatt-hours, continuously providing green energy support for the economic and social development of northern Laos.

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