| 引用本文: | 商全鸿,赵彬.分裂数及金具对特高压导线扭转刚度特性影响试验研究[J].电力系统保护与控制,2018,46(3):128-132. |
| SHANG Quanhong,ZHAO Bin.Experimental study on torsional stiffness properties of ultra-high-voltage conductor affected by bundle number and fittings[J].Power System Protection and Control,2018,46(3):128-132 |
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| 摘要: |
| 多分裂导线是特高压输电线路中常用的导线形式。为了能够明确线夹回转式间隔棒和压重式间隔棒等防舞金具对导线束扭转刚度的影响，采用试验方法，对在多种金具安装工况下多分裂LGJ-500/45导线扭转刚度特性进行了测试研究。分析并揭示了防舞金具的类型、安装方式和数量对分裂导线扭转刚度的影响规律。结果表明，档距不变的情况下，间隔棒安装越密集，导线的扭转刚度反而会变小；安装两种防舞器时，导线-防舞器系统的扭转刚度区别不大；多分裂导线的扭转刚度具有不可忽视的非线性特征。 |
| 关键词: 特高压 多分裂导线 扭转刚度 线夹回转式间隔棒 压重式间隔棒 防舞金具 |
| DOI：10.7667/PSPC201785 |
| 分类号: |
| 基金项目:国家电网公司科技项目(GC-71-17-024) |
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| Experimental study on torsional stiffness properties of ultra-high-voltage conductor affected by bundle number and fittings |
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SHANG Quanhong1,ZHAO Bin2
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(1. State Grid Zhejiang Electric Power Company, Hangzhou 310007, China;2. China Electric Power Research Institute, Beijing 100055, China)
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| Abstract: |
| Bundle conductor is commonly used in UHV transmission lines. In order to clearly reveal the influences of anti-galloping fittings on torsional stiffness properties, such as the rotary clamp spacers and heavy spacer, their values for bundled LGJ-500/45 wires under various working conditions are determined by test, through which the effect law of anti-galloping fittings’ types, installation modes and quantity on bundled wire torsional stiffness is analyzed. The results show that keeping the test span constant, the more anti-galloping fittings just like spacers are used in single span, the smaller torsional stiffness becomes; there are little differences between torsional stiffness values of bundle conductor systems with rotary clamp spacers or heavy spacer; their nonlinear characteristics should not be ignored. This work is supported by Science and Technology Project of State Grid Corporation of of China (No. GC71-17-024). |
| Key words: ultra-high-voltage bundle conductor torsional stiffness rotary clamp spacer heavy spacer anti-galloping fittings |
