矿井低压电网漏电保护技术的发展

PROGRESS OF LEAKAGE PROTECTION TECHNIQUE FOR UNDERGROUND LOW VOLTAGE DISTRIBUTION NETWORK

矿井低压电网漏电保护经历了３个发展阶段。２次飞跃。在简要回顾矿井低压电网漏电保护 技术发展史的基础上，介绍了矿井低压电网漏电保护技术的进展，其中包括机电式漏电保 护。半导体式漏电保护。微机式漏电保护和自适应式漏电保护。

With the development of science and technology, the development of leakage prote ction technology for underground low voltage distribution system has gone through three stages and two leaps in past 50 years. After a concise review of i ts development history the progress in this field such as electromechanical leak age protection, semiconductor based leakage protection, microcomputer based leak age protection is introduced and adaptive leakage protection is also narrated(or described,or presented).