Gaoya dianqi双断口真空断路器能够有效提高耐受电压水平，显著降低重燃率，进而提升无功投切性能，具有重要的工程实际意义。文中通过实验分别研究了双断口真空断路器在直流电压下不并联均压电容以及并联均压电容条件下关合时的预击穿特性，包括预击穿开距及其分散性、预击穿电压、预击穿场强，并计算其威布尔分布。结果表明，通过并联合理大小的均压电容（约100 pF）可以使双断口分压更加均匀，从而有效改善双断口真空断路器的预击穿特性。实验结果表明，随着均压电容的增大，当均压电容值超过500 pF后，双断口真空断路器的预击穿特性将会变差 ...
李洪伟 +4 more
doaj
[Research progress on flexible wearable sensors for health monitoring]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiChen X, Xu G.
europepmc +1 more source
[Research progress in the application of molecular imprinting technology in catalysis]. [PDF]
Se PuYe WM +5 more
europepmc +1 more source
Dianci bileiqi变电站并联电容器长期承受操作过电压，可能造成电容器老化、故障，甚至击穿损坏，甚至可能导致电力系统故障并造成严重后果。针对以上问题，本研究提出了一种可以模拟断路器投切过程中电气强度恢复过程、投切随机特性和介质重燃的断路器模型，并根据变电站的无功补偿电容器组实际连接方式及回路特征，利用PSCAD软件进行了变电站仿真建模。最后，基于变电站的运行特点，本研究对并联电容器投切过程中过电压影响因素进行了分析，如断路器分合特性对过电压的影响、不同设备安装位置对过电压的影响和不同对地电容对过电压的影响。研究结果表明 ...
刘志林 +10 more
doaj
[Evaluation of an interpretable 12-lead ECG automatic diagnosis model based on deep feature fusion]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoLu X +5 more
europepmc +1 more source
[Advances in intra-abdominal vascularized lymph node transfer for treatment of limb lymphedema]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiChen Y, Deng C.
europepmc +1 more source
[Research progress of molecular imprinting technology in the field of disease diagnosis and therapy]. [PDF]
Se PuZhu R, Cai GP, Zheng HJ, Jia Q.
europepmc +1 more source
[A protein-specific quantitative detection method based on polyacrylamide gel electrophoresis and online fluorescence imaging]. [PDF]
Se PuZou R +6 more
europepmc +1 more source
[Electroencephalographic assessment of the relationship between frontal alpha asymmetry and emotion dysregulation in children with attention deficit hyperactivity disorder]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiChen L, Zhao LL, Wu XC, Li HY, Zhang WW.
europepmc +1 more source
[Research progress on the pretreatment and analysis of prohibited components of glucocorticoids in cosmetics]. [PDF]
Se PuLiu L, Xiao XH, Fang JH, Li GK.
europepmc +1 more source