Surge Arrester for the 110 kV Substation at NGC

Project Information

• Project Name: Surge Arrester for the 110 kV Substation at NGC
• Investor: Northern High Voltage Power Network Company (NGC)
• Location: 110 kV substations managed by NGC in the Northern region
• Implementation Period: 2012–2013

The Northern High Voltage Power Network Company (NGC) is responsible for ensuring reliable power supply to key political and economic centers in the northern provinces. Many 110 kV substations managed by NGC have been in operation for many years, with most equipment originally manufactured in the former Soviet Union and China. After a long period of service, the equipment has deteriorated and can no longer ensure reliable operation.

To improve operational safety and efficiency, since 2012, NGC has implemented the replacement of PBC-110 gapped surge arresters with modern gapless surge arresters using new technology manufactured by Cooper (USA).

In 2012, MPCo supplied 121 sets of substation surge arresters for nine major substations under NGC, including Mong Duong, Tang Loong, Tuyen Quang, Cam Pha, Yen Bai, Gieng Day, Ha Giang, Mong Cai, and Tien Yen.

In 2013, MPCo continued to supply surge arrester equipment for 32 substations under NGC, including Tien Hai, Long Boi, Thai Binh, Pho Cao, Thieu Yen, Nui Mot, Muc Son, Ha Trung, Tuan Giao, Dien Bien, Quynh Luu, Quy Hop, Nghia Dan, Go Dam, Cao Bang, Do Luong, Son La, Moc Chau, Bac Kan, Hoa Binh, Vo Cuong, Doi Coc, Phu Ly, Thach To, Thach Linh, Linh Cam, Dong Mo, Lang Son, Phuc Yen, Vinh Yen, Trinh Xuyen, and Phi Truong. The total number of supplied equipment reached 295 units.

The surge arrester equipment supplied by MPCo has contributed to improving operational reliability, protecting equipment and the 110 kV power network, and meeting NGC’s requirements for safety, stability, and continuity of power supply in the Northern region.