Results 51 to 60 of about 3,318 (103)
Dianci bileiqi, 2012 目前,由于多种因素,金属氧化物避雷器在抑制特快速暂态过电压（VFTO）方面的应用有限。为了满足VFTO下避雷器的动态特性的需求,笔者介绍一种适用于VFTO计算的避雷器模型,由于避雷器电容效应,造成高频下残压和放电电流之间存在时间延迟,导致避雷器响应速度变慢。结合实例,对采用文中建议的模型和IEEE建议的模型下的VFTO做了仿真分析。结果表明 ...
曲振旭 +4 more
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Dianci bileiqi, 1975 限流间隙的特点是当续流通过时电弧很快被转移,拉伸,挤压,冷却,从而具有高的电弧压降,可以限制续流幅值和时间,降低对伐片通流能力和非线性系数的要求,提高避雷器的可靠性,或者也可用以降低避雷器的残压。鉴于上述特点,近十几年来世界各国限流间隙发展很快,已普遍应用在高压磁吹避雷器中。我国的限流间隙自1976年投入运行以来 ...
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[Clinical features and pathological scoring analysis of hepatic amyloidosis]. [PDF]
Zhonghua Gan Zang Bing Za ZhiGong YX +5 more
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[Rehabilitation guidelines and specifications for traumatic spinal cord injury (2025 edition)]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiProfessional Committee Of Spine And Spinal Cord Injury Rehabilitation China Association Of Rehabilitation Of Disabled Persons +3 more
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[A case of segmental atrophy of the liver in children]. [PDF]
Zhonghua Gan Zang Bing Za ZhiQiu YL, Mao Y, Lu CL.
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Dianci bileiqi为了降低残压，改善氧化锌避雷器的伏安特性，提高电网过电压防护水平，研究了基于等离子体射流间隙触发技术的可控避雷器。对可控避雷器触发开关的间隙结构等技术参数进行了设计，实现了以高低压电极、脉冲形成回路、等离子体喷射器为主体的避雷器触发间隙开关。对多路触发下间隙的导通特性进行了实验研究，并对电磁作用下导通弧柱的运动情况进行了仿真研究，对不同电压下间隙的导通特性进行了测量分析，验证了避雷器等离子体射流间隙触发技术的可行性。研究结果表明在该设计方案下，当间隙电压达到自持阈值时，能够在间隙触发6 ...
谷山强 +5 more
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[Clinical efficacy of two-stage ear reconstruction using autologous rib cartilage in the correction of congenital microtia]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiXu ZC +6 more
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[Extracellular matrix materials and tissue regeneration and repair]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhao L, Xie H.
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[ResLSTM-TemporalSE: an automated classification model for multi-lead ECG signals]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoQu M, Fu R.
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[Establishment and international comparison of reference methods for glycated hemoglobin]. [PDF]
Se PuWang M +6 more
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