Gaoya dianqi, 2015 高压断路器中常常采用不同的传动机构来连接灭弧室本体和操动机构,实现分闸、合闸与自动重合闸操作,同时传动机构又会对其动作特性产生影响。笔者从介绍某高压断路器传动机构的工作原理入手,并对断路器机械特性的测试结果进行分析,其次论述传动机构刚性差对断路器动作特性的影响,提出提高传动机构刚性的有效措施,最后通过提高传动机构刚性后的试验结果进行验证。
王永良, 彭新奇, 程铁汉, 张博
doaj
[Performance evaluation of different filtration fractions during daytime continuous renal replacement therapy]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanWang L, Chen Y, Xu G, Xu C.
europepmc +1 more source
[Extracellular matrix materials and tissue regeneration and repair]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhao L, Xie H.
europepmc +1 more source
[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
Gaoya dianqi高压断路器是电力系统中重要的保护和控制设备。高压断路器可以采用弹簧机构来执行分闸动作，断路器分闸时间是指处于合闸位置的断路器，从弹簧机构分闸脱扣器带电时刻到所有各极弧触头分离时刻的时间间隔。弹簧机构分闸脱扣器动作时间在断路器分闸时间中占比50%左右，通过改变弹簧机构分闸锁扣器动作时间是调整断路器分闸时间关键因素。为有效调整断路器分闸时间，文中根据断路器分闸动作的原理，以高压断路器用弹簧机构分闸锁扣系统为研究对象，采用机械动力学仿真计算分析方法，分析分闸锁扣系统对断路器分闸时间的影响 ...
惠勇锋 +10 more
doaj
[Recent advances in artificial intelligence for auxiliary diagnosis and management of neonatal necrotizing enterocolitis]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiJiang Q, Zhang L.
europepmc +1 more source
[The application of machine learning in the auxiliary diagnosis of specific learning disorder]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiZhao H, Mei SL, Wang JY, Chi X.
europepmc +1 more source
[Design and validation of a multimodal model integrating text and imaging data for intelligent assessment of psychological stress in college students]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoXie H +5 more
europepmc +1 more source
[Study on the electric field transmission characteristics of conducted-electrode tumor treating fields]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiLiu K, Zhang J, Shi J, Fang H, Li X.
europepmc +1 more source
Gaoya dianqi由于受各断口合闸操动分散性、触头表面状况迥异、真空间隙击穿电压的分散性等影响，双断真空断路器的关合预击穿现象往往表现为各断口的非同时预击穿。现阶段仍缺乏串联真空间隙的非同步关合预击穿特性相关研究，文中目标是实验研究双断口真空断路器非同步关合的预击穿开距和预击穿电压分布的特性。实验以两个串联连接的12 kV商用真空灭弧室为研究对象，设置4组关合实验条件：两个断口同步关合、低压侧比高压侧快1 ms关合、高压侧比低压侧快0.5 ms关合、高压侧比低压侧快0.2 ms关合 ...
王毅钊 +5 more
doaj