Results 51 to 60 of about 218 (99)

变电站并联电容器投切过电压幅值影响因素分析

Dianci bileiqi
变电站并联电容器长期承受操作过电压，可能造成电容器老化、故障，甚至击穿损坏，甚至可能导致电力系统故障并造成严重后果。针对以上问题，本研究提出了一种可以模拟断路器投切过程中电气强度恢复过程、投切随机特性和介质重燃的断路器模型，并根据变电站的无功补偿电容器组实际连接方式及回路特征，利用PSCAD软件进行了变电站仿真建模。最后，基于变电站的运行特点，本研究对并联电容器投切过程中过电压影响因素进行了分析，如断路器分合特性对过电压的影响、不同设备安装位置对过电压的影响和不同对地电容对过电压的影响。研究结果表明 ...
刘志林, 王琼, 郭红兵, 杨波, 付文光, 刘涛玮, 马钶昊, 刘鑫荣, 陈志伟, 李宗昊, 邱继龙   +10 more
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[Overwork damages myocardial energy metabolism homeostasis in mice]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Cui J, Lai R, Chen S, Qu S, Liao Y, Ma X, Li Y.   +6 more
europepmc   +1 more source

[Serum levels of polycyclic aromatic hydrocarbons and health risk assessment among children and adolescents]. [PDF]

Se Pu
Wang LP, Deng ZY, Shi SY, Wang HW, Liu K, Li X, Zhang MY, Mei SR.   +7 more
europepmc   +1 more source

[Analysis and Projection of the Burden of Chronic Respiratory Diseases Attributable to Smoking in China, 1990-2021]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Xie X, Lin D, Li M, Ye X, Fang J, Zhang X, Xue A.   +6 more
europepmc   +1 more source

[Determination of eight organophosphate esters in animal-derived foods by ultra performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Tang Y, Wen S, Cao WC, Liu X, Lei CL, Cheng QY, Chen HC, Liu L, Liu XF, Zhou Y.   +9 more
europepmc   +1 more source

[Development progress of stationary phase for supercritical fluid chromatography and related application in natural products]. [PDF]

Se Pu, 2023
Song CY, Jin GW, Yu DP, Xia DH, Feng J, Guo ZM, Liang XM.   +6 more
europepmc   +1 more source

SW6-220型高压少油断路器切合空载长线试验

Gaoya dianqi, 1971
SW6-220型高压少油断路器配CY33型液压操动机构系西安高压开关厂为援助兄弟的阿尔巴尼亚高速试制成功的新产品。开关在试验室内成功地完成型式试验后,于今年六月十一日至十四日在云南电力系统221公里的2号线路上又成功地完成切合空载长线试验。切合共60相次,均无重燃,分闸亦无过电压。合闸时首端过电压最大为1.68倍相电压,末端最大为1.83倍相电压。
doaj  

[<i>Sangma Zhike</i> Formula alleviates airway inflammation and hyperresponsiveness in rats with postinfectious cough by inhibiting the TRPV1-SP/CGRP and pyroptosis pathways]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Yang Q, Zhu H, Gao Y, Yang C, Liu T, Zhang L, Tong J, Li Z.   +7 more
europepmc   +1 more source

[Associations between indoor volatile organic compounds and nocturnal heart rate variability of young female adults: A panel study]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban, 2023
Ji XZ, Liu S, Wang WZ, Zhao YT, Li LY, Zhang WL, Shen GF, Deng FR, Guo XB.   +8 more
europepmc   +1 more source

[Determination of organophosphate diesters in facility vegetable soils using ultra-high performance liquid chromatography-electrostatic field orbitrap high resolution mass spectrometry]. [PDF]

Se Pu, 2023
Liu M, Wang M, Zhao A, Zhu L, Wang C, Wei C, Liu W, Xu J.   +7 more
europepmc   +1 more source