摇摆角曲线计算书

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1、摇摆角曲线计算书一、计算说明1、计算参数1.1工程名称：500kV线路工程1.2电压等级：500kV最大风速：33m/s1.3计算塔型：ZB4411.4导线参数：导线型号4×JLHA2/G1A-400-54/7525.0032.783.8278.61125.8323.8271.5导线应力：10098.35104.78106.2198.35146.0920071.3276.1482.6771.32157.3030050.8353.2462.7750.83157.3040044.7746.4456.0944.77157.3050042.3543.7653.2942.3515

2、7.301.6绝缘子参数：绝缘子型号类型联数片数串长串重受风面积金具面积U100BP玻璃型双联276.75506500.00000.03000.10001.7绝缘子串最大允许摇摆角：外过电压：9.00°内过电压：21.00°运行电压：45.00°带电作业：9.00°2、计算公式（手册P604）设：，，得：式中：—最小允许垂直档距，m；—外过、内过、运行、带电工况时的绝缘子串风压，N；—导线分裂数；—外过、内过、运行、带电工况时的导线应力，N/mm2；—最大弧垂时的导线应力，N/mm2；—导线单位荷载，N/m；—外过、内过、运行、带电工况时的导线单位风荷载，N/m；—水平

3、档距，m。一、计算过程1、绝缘子串单位风压外过电压：＝9.81×（0.0300×54+0.1000）×102/16＝105.46N同理得：内过电压：PJ(15)＝9.81×（0.0300×54+0.1000）×152/16＝237.28N运行电压：PJ(33)＝9.81×（0.0300×54+0.1000）×332/16＝1148.43N带电作业：＝9.81×（0.0300×54+0.1000）×102/16＝105.46N1、导线单位风荷载外过电压：P4(10)＝γ4(10)S＝3.83×10-3×525.00＝2.01内过电压：P4(15)＝γ4(15)S＝8.61

4、×10-3×525.00＝4.52运行电压：P4(33)＝γ4(33S＝25.83×10-3×525.00＝13.56带电作业：P4(10)＝γ4(10)S＝3.83×10-3×525.00＝2.01导线单位荷载：Pd＝γ1S＝32.78×10-3×525.00＝17.212、摇摆角曲线计算3.1外过电压A=-729.27B=-4.52C=4.63lpσ10(外过)/σdClvd=A/C+[(B+C)/C]×lhlhlvdlvd/lh1000.6711.59-62.946+0.610×lh100-1.99-0.0201000.6711.59-62.946+0.610×l

5、h500241.810.4842000.457.80-93.463+0.420×lh100-51.44-0.5142000.457.80-93.463+0.420×lh500116.640.2333000.325.56-131.138+0.186×lh100-112.49-1.1253000.325.56-131.138+0.186×lh500-37.90-0.0764000.284.90-148.889+0.076×lh100-141.25-1.4134000.284.90-148.889+0.076×lh500-110.71-0.2215000.274.63-157

6、.397+0.024×lh100-155.04-1.5505000.274.63-157.397+0.024×lh500-145.61-0.2913.2内过电压：A=-735.23B=-5.43C=4.79lpσ15(内过)/σdClvd=A/C+[(B+C)/C]×lhlhlvdlvd/lh1000.7212.34-59.566+0.560×lh100-3.58-0.0361000.7212.34-59.566+0.560×lh500220.370.4412000.488.33-88.262+0.348×lh100-53.48-0.5352000.488.33-88.

7、262+0.348×lh50085.660.1713000.345.82-126.226+0.067×lh100-119.49-1.1953000.345.82-126.226+0.067×lh500-92.55-0.1854000.305.08-144.708+-0.069×lh100-151.63-1.5164000.305.08-144.708+-0.069×lh500-179.32-0.3595000.284.79-153.571+-0.135×lh100-167.04-1.6705000.284.79-153.571+-0.13