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SF6气体压力对GIS隔离开关操作时暂态电压过程的影响分析

open access: yesGaoya dianqi
SF6气体压力直接关系到气体绝缘组合电器(GIS)隔离开关分合过程中触头间的动态绝缘特性。为研究SF6气体压力变化对隔离开关操作时所激发暂态电压过程的影响,文中根据GIS隔离开关开合短母线方式1试验,基于1 100 kV GIS隔离开关搭建试验平台,将隔离开关绝缘气体压力从0.4 MPa分别提升至0.5 MPa和0.54 MPa,利用超宽频电压监测系统准确测量了隔离开关操作时断口两侧的暂态电压,并分析暂态电压时域特征、频谱分布和时频分布特征变化。通过试验数据分析发现当随着SF6气体压力增大 ...
何雨峰   +6 more
doaj  

[Research progress on the acquisition technology of magnetocardiography]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Kang B   +5 more
europepmc   +1 more source

[The guideline for the diagnosis and treatment of marginal zone lymphoma in China (2025)]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
Hematological Oncology Committee of China Anti-Cancer Association   +5 more
europepmc   +1 more source

[Effects of cold atmosphere plasma treatment on the biological behavior of human gingival fibroblasts]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Zheng M   +7 more
europepmc   +1 more source

基于中红外可调谐激光光谱技术的SO2检测

open access: yesGaoya dianqi
在气体绝缘组合电器内发生绝缘缺陷时,设备内部SF6气体可能发生分解生成分解产物导致绝缘与灭弧性能下降。针对SF6分解产物的检测对设备内部绝缘情况的检测与评估具有重要意义。SO2作为SF6分解产物中主要产物之一,对其准确检测有助于评估设备内部绝缘情况。文中基于中红外可调谐激光光谱技术搭建了SO2检测实验平台,针对不同体积分数SO2气体进行检测,获得SO2体积分数与二次谐波峰值平均值的线性关系,并进一步开展了误差分析实验。分析了装置的响应速度与恢复时间。实验结果表明 ...
程绳   +7 more
doaj  

[Progress in the application of robotic technology in thyroid surgery]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Wu D   +6 more
europepmc   +1 more source

[Repair and reconstruction of facial organ injuries: a perfect fit of structure and function]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Song BQ, Pei JM.
europepmc   +1 more source

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