The Lai Uyen 220kV Substation and its connection project is a Level I, Group B energy project, invested by the National Power Transmission Corporation. The project is located in Cay San Hamlet, Lai Uyen Town, Bau Bang District, former Binh Duong Province, now Bau Bang Commune, Ho Chi Minh City.

Relevant units witnessing project’s energization moment. Photo: Le Linh

The Lai Uyen 220kV Substation is a newly constructed 220/110kV substation with a designed capacity of 2x250MVA. In this phase, one 250MVA transformer (AT1) has been installed, with a reserved position for the installation of the second transformer. On the 220kV side, the substation is designed with 10 bays, of which 6 bays are equipped in this phase, with 4 bays reserved for future expansion. On the 110kV side, the substation is designed with 15 bays, of which 6 bays are equipped in this phase, with 9 bays reserved. The control, protection, measurement, metering, telecommunications, and SCADA systems are installed in accordance with EVN and EVNNPT regulations and comply with current standards and applicable regulations.

The 220kV connection line component includes the construction of two double-circuit transmission line sections to connect the Lai Uyen 220kV Substation to the two existing circuits of the Chon Thanh – Ben Cat – My Phuoc 220kV transmission line, with a total length of approximately 0.5km.

After energization, the project helps ensure safe operation and enhance system reliability, meeting the electricity demand of Ho Chi Minh City and supporting the socio-economic development of the city and surrounding areas. The project also helps reduce loading on 220/110kV transformers on existing 220kV substation and 110kV transmission lines in the region, contributing to compliance with the N-1 criterion and improving the reliability and safety of power supply for the regional grid.

Translator: Thu Hường