摘要
小电流接地系统单相接地故障对供、配电网运行的安全性和可靠性有很大的影响。本文根据小电流接地系统单相故障的特点,应用零序光学电流传感器进行故障选线与定段,提高了继电保护的可靠性。
The single phase grounding fault in small current grounding system has great influence on the security and reliability of the distribution power system .According to the characteristic of single phase grounding fault in small current grounding system, zero-sequence optical current transducer （ZOCT） is applied in this paper to perform fault line selection and location, and the scheme improved the reliability in relay protection.
