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弹簧机构分闸锁扣系统对高压断路器分闸时间影响研究

Gaoya dianqi
高压断路器是电力系统中重要的保护和控制设备。高压断路器可以采用弹簧机构来执行分闸动作，断路器分闸时间是指处于合闸位置的断路器，从弹簧机构分闸脱扣器带电时刻到所有各极弧触头分离时刻的时间间隔。弹簧机构分闸脱扣器动作时间在断路器分闸时间中占比50%左右，通过改变弹簧机构分闸锁扣器动作时间是调整断路器分闸时间关键因素。为有效调整断路器分闸时间，文中根据断路器分闸动作的原理，以高压断路器用弹簧机构分闸锁扣系统为研究对象，采用机械动力学仿真计算分析方法，分析分闸锁扣系统对断路器分闸时间的影响 ...
惠勇锋, 段晓辉, 郭良超, 马琰, 刘宇, 何保营, 宋广民, 李美荣, 许家源, 牛平凯, 赵莉   +10 more
doaj  

[Facial scarless surgical approach for mandibular condyle fracture]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Chen J, Liu L.
europepmc   +1 more source

[Novel advances following the integration of Baveno VII consensus definitions for the non-invasive testing of portal hypertension]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Chen JL, Yang CQ.
europepmc   +1 more source

[Evolving treatment landscape of pediatric acute leukemia: integration and breakthroughs in immunotherapy and targeted therapy]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Wen FQ, Mai HR.
europepmc   +1 more source

[Lung nodule segmentation method based on multiscale feature interaction and coordinate information]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Xu Q, Zhu H, Wang Y, Liu W.
europepmc   +1 more source

[Early effectiveness and safety of mini open endoscopy assisted anterior cervical discectomy and fusion in treatment of cervical spondylotic myelopathy]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Pan X, Wang X, Wang C, Su W, Sheng J.
europepmc   +1 more source

[Research progress in the field of liver failure with artificial livers in 2025]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Han T.
europepmc   +1 more source

双断口真空断路器非同步关合直流预击穿特性

Gaoya dianqi
由于受各断口合闸操动分散性、触头表面状况迥异、真空间隙击穿电压的分散性等影响，双断真空断路器的关合预击穿现象往往表现为各断口的非同时预击穿。现阶段仍缺乏串联真空间隙的非同步关合预击穿特性相关研究，文中目标是实验研究双断口真空断路器非同步关合的预击穿开距和预击穿电压分布的特性。实验以两个串联连接的12 kV商用真空灭弧室为研究对象，设置4组关合实验条件：两个断口同步关合、低压侧比高压侧快1 ms关合、高压侧比低压侧快0.5 ms关合、高压侧比低压侧快0.2 ms关合 ...
王毅钊, 陈兴贵, 韩寅峰, 左晓婧, 耿云, 姚晓飞   +5 more
doaj  

[Rehabilitation guidelines and specifications for traumatic spinal cord injury (2025 edition)]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Professional Committee Of Spine And Spinal Cord Injury Rehabilitation China Association Of Rehabilitation Of Disabled Persons, Professional Committee Of Spine Chinese Association Of Rehabilitation Medicine, The Second Medical-Rehabilitation Integration Working Committee Chinese Association Of Rehabilitation Medicine, Spine And Spinal Cord Injury Repair Study Group The Third Professional Committee Of Neurorestoratology Chinese Medical Doctor Association.   +3 more
europepmc   +1 more source

[Short-term effecetiveness of endoscopic lumbar discectomy combined with annular suturing in treatment of lumbar disc herniation]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhang S, Yao F, Liao Z, Wang T, Shen M.
europepmc   +1 more source