​​The AT4 220/​110/22kV-250MVA transformer at the 500/220 kV Dong Anh substation

The energization of the 2nd 220kV-250MVA transformer at the 500/220 kV Dong Anh substation will strengthe♔n the power supply to the power load in the Northern Red river of Hanoi city and a part of Bac Ninh province, increasing reliability of the power system and meeting the socio-economic development demand in Hano♐i city and surrounding areas.

This is the energy project of level 1, Group C, with total cost of VND 70.8 billion invested by the National Power Transmission Corporation (EVNNPT). NPMB is on behalf of EVNNPT to manage the implementation of project; Power Engineering Consultation Company 1 (PECC1) is responsible for proj🐟ect design; Power Construction Company 1 (PCC1) is responsible for project implementation, Power Transmission Company No. 1 (PTC1) takes over the management and operation after project completed.

Scope of project: Installing 01 220/110/22kV-250MVA transformer (increasing capacity of the 220 kV transformer at the 500/220 kV Dong Anh substation into a 2 x 250 MVA); installing devices at a 220kV feeder and a 110kV feeder to the 220/110/22 kV transformer; installing the surge arrester and power tra🐟nsforme🐷r at the 22kV side of the 220/110/22 kV transformer./.​