Results 51 to 60 of about 1,271 (115)
Dianci bileiqi, 2018 在盘形悬式绝缘子表面涂覆RTV涂料是一种极为有效的防污闪措施。但由于施工、制造过程没有统一标准,导致实际运行的绝缘子产品表面涂覆效果差异较大,如有的涂料把铁帽覆盖住,有的涂料未覆盖绝缘子上表面等。不同涂覆效果可能会直接影响绝缘子的电气特性。以三种典型不同涂覆试品为对象,在国家电网公司重点实验室分别进行油中击穿耐受电压试验、直流干闪络电压试验,同时,通过ANSYS仿真软件,对试品分别建模分析场强分布情况。结果显示:当RTV涂层上边缘正好与铁帽和瓷件的结合处重合时,其直流干闪络电压最低 ...
武文华 +5 more
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Gaoya dianqi并联电容器作为无功补偿装置，要随电力系统的无功负载变化进行频繁投切。由于用于投切的真空断路器重燃率较高，切除并联电容器时容易发生重击穿故障。文中针对西北某330 kV变电站低压侧采用真空断路器切除35 kV电容器时，两相电容器分别发生鼓包喷油的严重事故展开研究。通过现场检查、过电压理论分析及电磁暂态仿真分析等手段，分析获得了故障产生的原因。仿真波形与事故录波波形完好吻合，验证了所提出事故发生过程的准确性，并证明了真空断路器连续重燃是电容器故障的根本原因。最后，提出改善措施以降低真空断路器发生重击穿的概率，
吴诚威 +7 more
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Gaoya dianqi, 2018 局部放电作为绝缘击穿的前兆现象,是表征设备绝缘状态的重要参量,通过对局部放电进行检测可以在出现绝缘击穿之前对设备的绝缘状态进行掌握并及时处理。随着我国电网规模的日益增长 ...
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[Interventional revascularization combined with perforator composite flap for staged treatment of peripheral arterial disease with ankle soft tissue defects]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiGuo X +8 more
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[Binary encryption comprehensive experiment based on agarose gel electrophoresis]. [PDF]
Se PuDuan JW +7 more
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[Refractory systemic lupus erythematosus-associated thrombocytopenia treated with avatrombopag: A case report]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanTang X +8 more
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[Effectiveness of composite loop plate around coracoid process for reconstructing coracoclavicular ligament in treatment of Rockwood type <b>Ⅲ</b> acute acromioclavicular joint dislocations]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiHe H +5 more
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[Medical treatment standards for emergency trauma wounded (2025 edition)]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiNational Health Commission Of The People's Republic Of China.
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[Exploring the research on the molecular mechanisms of autoimmune liver diseases]. [PDF]
Zhonghua Gan Zang Bing Za ZhiLiu YQ, Jiang XW, Li Y, Liu XL.
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