基于分布式的10kV母差保护的研究和应用

The research and application of lOkV distributed busbar protection in substation

10kV保护室开关拒动时，现有的解决方法是依靠主变后备保护隔离故障，这种方法动作时限过长，经常导致开关拒动爆炸，针对这种情况提出了一种分布式微机母线保护装置来快速切除故障，同时解决了传统母线保护间隔之间出线多的缺点。

When a lOkV switch＇s refusing action happens in a substation relay room, the current solution depends on the main transformer back - up protection to take the fault isolation. But it takes so long time and usually results in the switch explosion. To the problem in current solution, this paper presents a distributed microcomputer busbar protective device which can clear the fault quickly and also solute the problem that tradition bus protection has too much outgoing lines.