Results 91 to 100 of about 367 (113)

特变电工信息简报(电线电缆专辑)2019年第1期 [PDF]

open access: yes, 2019
付爽   +6 more
core  

高压单芯电缆工频运行下金属护套雷电冲击电压的仿真研究

open access: yesDianci bileiqi
为了研究高压单芯电缆金属护套冲击电压的影响因素,本研究用PSCAD/EMTDC建立220 kV架空线-高压单芯电缆线路模型并仿真雷电绕击架空线后沿线入侵电缆的波过程,在工频运行条件下,通过改变电缆接地方式、电缆参数以及雷电流参数,研究对金属护套雷电冲击电压幅值的降低作用。结果表明:其他条件相同时,采用首端接地方式的不接地点金属护套雷电冲击电压幅值比末端接地方式和交叉互联接地方式降低约90 %;由于金属护套在交叉互联点发生换位,导致金属护套雷电冲击电压幅值最大相在第二个互联点处由侵入相变为非侵入相 ...
孙铭, 张周胜, 谢书凝, 张磊
doaj  

[Research and application implementation of the Internet of Things scheme for intensive care unit medical equipment]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Liang H   +6 more
europepmc   +1 more source

[History and trends of robot-assisted spine surgery]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Huang Y, Wang Y.
europepmc   +1 more source

[An radio frequency coil design for rat spinal magnetic resonance imaging at 9.4 T]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2019
Xu Y, Yang H, Zhong K.
europepmc   +1 more source

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