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计及电缆绝缘不均匀老化的接地电流相位角特性研究

Gaoya dianqi
交联聚乙烯（XLPE）电力电缆广泛应用于配电网和输电网，但它们在持续的电应力下遭受长期的老化退化，电缆老化容易造成绝缘击穿事故。为了提升电缆绝缘老化状态的在线评估技术，基于PSCAD建立了计及电缆绝缘不均匀老化的三芯管型电缆接地电流相位角计算模型，通过快速傅里叶变换FFT变化得到单相不均匀老化、双相不均匀老化、三相均匀老化3类情况的接电线电流相位角特性。结果表明：相比于钢铠接地线电流，屏蔽线电流相角对于老化特性的反应更为灵敏；对于单相老化，介电常数由2增加为5，屏蔽线电流相位角从-51.01°递增为 ...
刘刚, 王秀茹, 邱冬, 王德, 鲍诗杰, 张东东   +5 more
doaj  

[Research progress on lactylation modification in pathogenesis of osteoarthritis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wu Y, Sun K, Ding Y, Li M, Liu Y, Wu L, Peng L, Shen B.   +7 more
europepmc   +1 more source

[Determination of ethylene oxide and acetaldehyde in petrochemical exhaust based on thermal desorption- gas chromatography-mass spectrometry]. [PDF]

Se Pu
Li YJ.
europepmc   +1 more source

[Clinical efficacy of human biological dressing transplantation for refractory wounds in middle-aged and elderly patients]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Ling X, Zhang P, Zhang T, Li S.
europepmc   +1 more source

[Development and validation of a risk prediction model for cognitive impairment in rural elderly Chinese populations: evidence from the CHARLS study]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Wang F, Li W, Shang X, Li F.
europepmc   +1 more source

[The practice of building a wound repair discipline system with Chinese characteristics in countryside area: insights from the "Three Souths" experience]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Fu XB.
europepmc   +1 more source

[Analysis of setup errors and their correlation with clinical factors in image-guided radiotherapy for prostate cancer using different immobilization devices]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Guo X, Liu Y, Xiong Y, Liu B, Song T, Li Y.   +5 more
europepmc   +1 more source

[Clinical characteristics, efficacy and safety of antifibrotic agents in elderly patients with connective tissue disease-associated interstitial lung disease]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Lan J, Chen Z, Cheng Y, Zhao L.
europepmc   +1 more source

[Effects of Multiple Lifestyle Factors on Cardiovascular Biological Aging and Their Relative Contributions]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Cai J, Zhang N, Xiang Y, Zhang H, Xiao X.   +4 more
europepmc   +1 more source

[TiRobot-assisted minimally invasive treatment of geriatric fragility fractures of the pelvis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li C, Dai Y, Cai W, Situ X, Zeng Y, Du X, Hong S.   +6 more
europepmc   +1 more source