Capacitor Bank at 110 kV Quy Hop Substation
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Project Information
- Project Name: Capacitor Bank at 110 kV Quy Hop Substation
- Investor: Northern High Voltage Power Network Company
- Location: Quy Hop District, Nghe An Province
- Implementation Period: 2014
To reduce power losses and improve voltage quality, the Northern High Voltage Power Network Company implemented the installation of medium-voltage capacitor banks at 110 kV substations under its management. Quy Hop 110 kV Substation is the first substation to be equipped with a 35 kV capacitor bank with a capacity of 5 MVAr.
The capacitor bank, manufactured by Eaton’s Cooper—an electrical equipment manufacturer with over 80 years of experience—uses lead-free EX-7L capacitor units, with a rated voltage of 14.127 kV and a capacity of 254 kVAr each, totaling 30 units (5 MVAr per bank).
The substation was commissioned in 1990 and is currently equipped with a 25 MVA transformer (110/38.5/11 kV), supplying power to 35 kV and 10 kV loads in Quy Hop, Quy Chau, and Que Phong districts.
The installation of the capacitor bank helps to:
. Provide reactive power support Stabilize voltage quality during peak hours Ensure safe, stable, and reliable operation of the power grid
