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- 00:00:00,000 --> 00:00:01,965
- 10千伏高压柜灭弧
- 2
- 00:00:01,965 --> 00:00:04,940
- 断路器从工作位置到检修位置
- 3
- 00:00:04,940 --> 00:00:06,866
- 当梅花触头分开瞬间
- 4
- 00:00:06,866 --> 00:00:08,271
- 会形成电弧
- 5
- 00:00:08,271 --> 00:00:11,186
- 梅花触头采用多点触碰式设计
- 6
- 00:00:11,186 --> 00:00:13,996
- 使得断路器的电弧能力得到显著提高
- 7
- 00:00:14,467 --> 00:00:16,552
- 在开关断路器的过程中
- 8
- 00:00:16,552 --> 00:00:18,967
- 触点间会产生放电现象
- 9
- 00:00:18,967 --> 00:00:21,653
- 由于梅花动触头的多点触碰式设计
- 10
- 00:00:21,653 --> 00:00:23,518
- 同时断开多个回路
- 11
- 00:00:23,518 --> 00:00:26,403
- 电弧的能量被分摊到各个触点上
- 12
- 00:00:26,403 --> 00:00:28,947
- 使得每个触点上的电弧能量减小
- 13
- 00:00:28,947 --> 00:00:31,212
- 动触头采用弧形设计
- 14
- 00:00:31,212 --> 00:00:33,877
- 让电场行成向外扩张的电场
- 15
- 00:00:33,877 --> 00:00:35,057
- 增加了横向力
- 16
- 00:00:35,067 --> 00:00:37,472
- 加上随着距离的越来越大
- 17
- 00:00:37,472 --> 00:00:40,867
- 使电弧在电压低于阈值时自行熄灭
- 18
- 00:00:40,867 --> 00:00:42,973
- 无需额外配置灭弧装置
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