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可用于电力系统电压在线测量的氧化锌避雷器及其阻抗变换系统

open access: yesDianci bileiqi
针对电力系统电压在线测量存在的问题,提出一种可用于电力系统电压在线测量的氧化锌避雷器及其阻抗变换系统。在建立了等效电路模型与评价体系的基础上,开展了多参量联合作用下的基于氧化锌避雷器的线性分压器的频率特性仿真,揭示了电压幅值、输入阻抗与分压器有效带宽间的作用关系;探究了非理想源下避雷器负载效应对分压器测量性能的影响,研究结果表明,当电压超过U1mA后会造成一次侧(高压臂)电压畸变,若将氧化锌避雷器用于常规电压测量,应控制工作电压低于U1mA,若将氧化锌避雷器用于过电压监测,由于配合原则 ...
肖昕岩   +4 more
doaj  

[Oral Health Status of Obese Children andIntervention Strategies]. [PDF]

open access: yesSichuan Da Xue Xue Bao Yi Xue Ban
Cheng R, Lei L, Zhang R, Cai H, Hu T.
europepmc   +1 more source

[Clinical and genetic analysis of two families with combined defect in antithrombin and protein C genes]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
Guo YL   +6 more
europepmc   +1 more source

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