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Trung Nam Construction Investment Joint Stock Company has successfully powered the 500kV transformer substation with two transformers by 225 MVA each (2x225 MVA) and 1.2 km of transmission line for connecting the Ea Nam Wind Power Project –largest wind power plant in Vietnam at present time to the 500 kV Di Linh - Pleiku transmission line.

At 12:15 minutes on March 7, 2021, the Central Power  Management Board (CPMB) in coordination with relevant units powered the expansion elements of Doc Soi 500 kV transformer substation – belonged to the third 500 kV circuit of Doc Soi – Pleiku 2 project.

Power Transmission Company No.3 (PTC3) in coordination with related units has put into operation the shunt reactor of 500 kV - 128 MVAr - KH591 at the Vung Ang 500kV transformer substation (TS).

At the morning of November 20, 2016, in Gia Thanh commune, Phu Ninh district, Phu Tho province, the Northern Electricity Management Board under EVN National Power Transmission Corporation (EVNNPT) held a ceremony for ground breaking the bidding package No 5 for developing the first stage of project “Viet Tri 500 kV Transformer Substation (450 + 900 MVA) and it’s Feeders”.

On March 31, EVNNPT successfully energized and put into safe operation the 500kV-30,5Ω-2000A series capacitor set at Ha Tinh 500kV Transformer Substation, completed entire the project "Increasing the capacity of series capacitors on Nho Quan – Ha Tinh 500kV transmission line ".

On March 9, in the area of existing Quan 3- 110 kV Transformer Substation, (Ngu Hanh Son district, Da Nang city), the Power Transmission Company 2 (PTC2) held a ceremony for groundbreaking  construction of   Ngu Hanh Son 220 kV  Transformer Substation (TS).

On February 9, in Hanoi, Power Project Management Board 2 held a signing ceremony for the contract of EPC package No. 3 for 220 kV Vinh Hao transformer substation and connection line.

At 23:54 on May 30, 2021, at the 220kV Son Ha transformer substation in Son Ha District, Quang Ngai Province, the Management Board of Power Transmission Project a unit of the National Power Transmission (NPTPMB) in cooperation with the related units has successfully powered 220 kV - 250 MVA transformer (AT1) in Son Ha 220kV Transformer Substation (TS).

After a period of construction efforts, at 4:30 on June 29, 2020, in Ninh Phuoc 220 kV transformer substation (TS), the Power Project Management Board of the Central Region in cooperation with relevant units organized powering and putting into operation Ninh Phuoc 220 kV transformer substation and connecting power lines.

Hanoi City People's Committee has just issued a Decision to approve the investment policy, and the investor for the Ung Hoa 220kV transformer station project and connection. The Hanoi City People's Committee selected the National Power Transmission Corporation as the Investor of the project.

At 16:50 on May 13, 2019 in Gio Thanh commune, Gio Linh district, Quang Tri province, Licogi 13 joint stock company implemented an impulse energizing the whole equipment of 110 kV transformer substation of the LIG – Quang Tri solar power project.