利用BM—35型断路器的强化原理来提高其它类型油断路器的可靠性和开断能力
Gaoya dianqi, 1960 目前苏联35—110千伏带隔片灭弧室(去离子棚)的油断路器的数量很大。根据BM—35断路器使用经验和试验资料,现行的灭弧室形式不是经常有效地熄灭电弧,特别是在开断极限电流时,并因此而加大了开断短路的时间及由此而产生的不良后果。试验结果证明:可利用BM—35型断路器的强化原理来提高带隔片灭弧室和其它灭弧系统的断路器的工作可靠性和开断能力。
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Gaoya dianqi文中介绍了一起252 kV SF6断路器触头超程异常的分析与处理。在机构更换过程中，通过慢分慢合试验测量灭弧室触头行程时，发现了超程偏大的故障。对机构、连杆装配及灭弧室等可能故障的环节展开分析，确认了灭弧室存在故障。通过对故障灭弧室解体分析，发现灭弧室动弧触指断裂是造成超程增大的直接原因，并通过电镜扫描和化学成分分析了动弧触指断裂的原因。该次故障的分析与处理，对SF6断路器行程异常相关的故障排查和处理具有借鉴意义。
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Gaoya dianqi针对消弧线圈存在灭弧不彻底，选线准确率低等弊端，研究了一种消弧线圈叠加接地故障相经小电抗主动接地灭弧的综合接地消弧系统和产品，通过分析研究该系统单相接地零序回路的电量的变化特征，创新了将接地故障相经小电抗主动接地灭弧技术和选线方法，产品经过仿真及10 kV综合接地消弧系统真型接地试验等、验证了其具有全频率可靠灭弧性能，选线准确率可大于99%的技术优势。
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