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Harmonic voltage of different voltage levels in an electric grid
Author(s): 
Pages: 51-52
Year: Issue:  12
Journal: LIGHT METALS

Keyword:  谐波电压谐波畸变率;
Abstract: 对国家标准GB/T14549-93《电能质量公用电网谐波》中谐波电压限值的确定作了说明.分析了0.38kV电压等级的电压总谐波畸变率限值取5%为国家标准的合理性.提出了相邻各电压等级总谐波畸变率限值所应取比值的计算式.并结合我国电网枢纽点额定容量和短路容量的平均情况,提出了一个典型的,包含了0.38、10、35、110kV以及220kV各电压等级的供电网络接线.通过它作了计算,并参照其结果,确定了其它电压等级总谐波畸变率限值.
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