The first 220kV transformer station in Vietnam was checked, accepted and put into operation

On April 19, the Project Management Board of Northern Power Works (NPMB) cooperated with relevant units to accept and energize the 220kV Thuy Nguyen Transformer Station (Hai Phong).
This is the first digital transformer station invested by the National Power Transmission Corporation (EVNNPT), and is also the first 220kV digital transformer station in the country.

Thuy Nguyen 220kV substation (TBA) includes 2 transformers (MBA) 220/110 / 22kV – 250MVA, and in this phase, 1 transformer will be installed. The 220kV side uses the diagram of two busbar systems with a ring busbar with 12 compartments. In this stage, equipment is installed for 7 lanes. The 110kV side uses the diagram of two busbar systems with a ring busbar with 21 compartments. In this stage, equipment is installed for 13 lanes. The station has an area of ​​about 40,100 m2 located in Dong Son commune and Kenh Giang commune, Thuy Nguyen district, Hai Phong city. This is a class I energy project of group B, with a total investment of more than 348 billion dong, invested by EVNNPT, the project is managed by NPMB, and operated by Power Transmission Company 1. Mr. Pham Le Phu, General Director of EVNNPT, said: Digital substations are not only new technology for Vietnam but also advanced countries. Before implementing the project, EVNNPT held many seminars with major equipment manufacturers in the world such as Siemens, ABB, and GE, but the number of 220kV substations was the same size as Thuy Nguyen 220kV substations using TBA technology. number is very few. Thuy Nguyen 220kV substation has the advantages of reducing copper cable by about 80%; reduce transportation, construction and installation of copper cables and reduce the area of ​​cable trenches; reduce the installation space of control and protection devices. Thuy Nguyen 220kV substation will ensure power supply for additional loads and meet socio-economic development needs of Thuy Nguyen district, Hai Phong city and surrounding areas, reduce power loss and strengthen connectivity. safe, stable and flexible in operating the power system.