在青海至西藏直流输电工程换流阀绝缘型式试验中,由于计入附加大气修正系数Katm单阀陡波前冲击试验电压达到884 kV,试验造成9只晶闸管损坏。笔者着重分析了换流阀绝缘配合设计和绝缘型式试验的技术指标,在单阀陡前波冲击试验中可不必计入大气修正系数Katm,试验的结果可以保证换流阀在高海拔地区运行的安全性。
班建, 李侠, 陈干, 徐海博
doaj
[Monitoring of atmospheric CH4, CO, CO2, N2O and SF6 using three-channel gas chromatography]. [PDF]
Hong H +9 more
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[Research advances in nano liquid chromatography instrumentation]. [PDF]
Yang S, Li N, Ma Z, Tang T, Li T.
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[Determination of trace anions in G2-grade phosphoric acid using two-dimensional ion-exclusion-ion-exchange chromatography with valve-switching technology]. [PDF]
Wang JD, Tang G, Lu Y, Lu HJ, Ye T.
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[Development of integrated equipment for automatic sampling and distillate collection]. [PDF]
Zhou XY +7 more
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风冷型晶闸管换流阀采用空气强迫对流冷却,对其中的晶闸管、阻尼电阻等发热部件进行散热。文中提出均匀风管送风方案,采用封闭管道的方式,避免气流因阀塔结构流失,同时通过控制出风口尺寸,实现各晶闸管级冷却风量的均衡分配。文中基于理论计算,提出满足本换流阀系统散热需求的风机风量、压强设计,并经软件仿真及试验验证,确保换流阀能够长期可靠运行。相关研究结果对于风冷型晶闸管换流阀散热系统设计具有一定指导意义。
乔武宁 +5 more
doaj
[Establishment and international comparison of reference methods for glycated hemoglobin]. [PDF]
Wang M +6 more
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[Modeling the noninvasive bi-level positive airway pressure ventilation therapy system and simulated application]. [PDF]
Yuan Y +5 more
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[Determination of individual components in finished motor gasoline by dual-channel three-column gas chromatography]. [PDF]
Li CX, Wang YM, Zhang YW, Wang Z.
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[Application Effect of Continuous Lumbar Cistern Fluid Drainage Combined With Decompressive Craniectomy in the Treatment of Severe Craniocerebral Injury]. [PDF]
Du J, Liu G, Wang W.
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