The configuration and setting of capacitor protection are very important to ensure the safety of power system and equipment.This paper introduces the capacitor connection and protection configuration at low-voltage side of the 1 000 kV UHV pilot project from Southeast Shanxi Province via Nanyang in Henan province to Jinmen in Hubei province.The application principles of the configuration and setting of the 110 kV capacitor protection is discussed in detail.The notable problem in setting of the capacitor protection is also discussed.Since there are contradictions in the balance of reliability and sensitivity in capacitor protection setting

it is suggested to pay more attention to the safety of power equipment in the configuration and setting.