Results 51 to 60 of about 3,381 (116)

真空灭弧室耐压水平的改进

Gaoya dianqi, 1991
对于真空灭弧室的静态耐压,本文给出了一改进的模型灭弧室和一些相关的实验结果,证明在解决了外绝缘和老炼工艺问题后,10kV等级的真空灭弧室可以改造用于35kV等级,对于动态介质恢复方面,文中分析了均压屏蔽罩与弧后介质恢复的相互作用,给出了35kV/25kA试品的分断试验结果,说明正确设置均压屏蔽罩可使弧后介质恢复满足更高电压等级的要求。
邹积岩, 程礼椿
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风电场低电压穿越过程中短路信号的研究

Gaoya dianqi, 2013
针对系统电压跌落的同时,部分并网风电场又发生某种短路故障进行了研究。文中对风力发电系统在同步旋转参考坐标系下的稳态和暂态进行数学建模。在MATLAB/SIMULINK的平台上满足持续并网的条件下,分析风电场在无故障和部分风机组发生短路故障时的完成系统低电压穿越的能力,并基于小波进行故障分析。依据各项仿真数据,得出结论:发生单相短路时,风电场能较稳定地进行穿越;而两相或三相短路时,在系统电压恢复瞬间将会有强烈的能量振荡和冲击电流,因此应尽可能在系统电压恢复前就切除故障。
张强, 王维庆
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用Tesla变压器构成的六脉冲高压实验电源

Gaoya dianqi, 1999
介绍了一种采用真空触发间隙作为开关元件,控制储能电容器放电,经Tesla变压器升压,可产生六个时间间隔可调、峰值近300kV的高频振荡电压,可用于高压开关弧后介质恢复特性测量等领域.
张新平, 徐刚, 王荣琴, Damstra G C   +3 more
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GIS绝缘水平的研究与EMTP

Gaoya dianqi, 1988
一、引言 变电所防止雷电与操作过电压中,GIS的保护性能在许多重要方面与敞开式的变电站不同。传统变电站的绝缘水平主要取决于变压器的保护物——避雷器的正确选择及它们的安装位置;它的空气绝缘的强度可以自动恢复,开关可以耐受如绝缘子或套管闪络这样的故障。而GIS的绝缘不具有自动恢复的这个特性,在遭受过电压时,故整个GIS系统(母线,断路器,隔离开关和接地开关等)必须得到全面的保护。另外,架空线的进线段到GIS开关之间的母线也同样需要保护。GIS装置中 ...
施围
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[State-of-the-art in peripheral nerve injury diagnosis and therapy]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Sun J, Chen L.
europepmc   +1 more source

[Rehabilitation guidelines and specifications for traumatic spinal cord injury (2025 edition)]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Professional Committee Of Spine And Spinal Cord Injury Rehabilitation China Association Of Rehabilitation Of Disabled Persons, Professional Committee Of Spine Chinese Association Of Rehabilitation Medicine, The Second Medical-Rehabilitation Integration Working Committee Chinese Association Of Rehabilitation Medicine, Spine And Spinal Cord Injury Repair Study Group The Third Professional Committee Of Neurorestoratology Chinese Medical Doctor Association.   +3 more
europepmc   +1 more source

[Closed-loop spinal neural interface combined with rehabilitation training for incomplete spinal cord injury: a case report]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Feng C, Zhu J, Zhang J, Xu K.
europepmc   +1 more source

[Endoscopic-assisted median nerve decompression combined with one-stage tendon transfer for reconstruction of thumb abduction in treatment of severe carpal tunnel syndrome]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Sui J, Yang Y, Wang Z, Huang X, Jiang X, Zhang L, Li H.   +6 more
europepmc   +1 more source

[Medical treatment standards for emergency trauma wounded (2025 edition)]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
National Health Commission Of The People's Republic Of China.
europepmc   +1 more source

[Research progress on elbow joint rehabilitation robots]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Li M, Xu F, Wang D, Xu J.
europepmc   +1 more source