核电站380V交流系统接地保护分析及改进建议

Grounding Protection Analysis and Improving Suggestions for 380V AC System of Nulear Plant

在十三五规划中,核电等清洁能源的地位上升到一个新台阶,核能有其显著的特点,并涉及核电厂的安全。380V交流系统作为核电站重要的厂用电系统,近年来发生了多起越级跳闸事件,造成系统整体失电事件。论文通过380V交流系统接地保护分析,提出一些改进建议,以提高供电的可靠性。

In the 13 th Five-Year plan, nuclear power and other clean energy status rose to a new level, nuclear energy has its remarkable characteristics, and relates to the safety of nuclear power plant. As an important power system of nuclear power plant, 380 V AC system has many ups trip events in recent years, which results in the whole system losing electricity. Through the analysis of grounding protection of380 V AC system, some improvement suggestions are put forward in order to improve the reliability of power supply.