27.5kV电气设备绝缘水平及高海拔修正系数选择

Insulation Level of 27. 5 kV Electrical Equipments and Selection of High - altitude Correction Coefficient

通过对现行有效标准的对比分析,阐述27.5kV电气设备的额定绝缘水平和在高海拔地区绝缘水平的修正方法,以合理选择电气设备绝缘水平的高海拔修正系数,提出27.5kV电气设备在不同海拔高度适用的绝缘水平。

The rated insulation level of 27. 5 kV electrical equipments and correction of insulation level at a high altitude is elaborated through comparison and analysis on the effective standards available to appropriately select the high-altitude correction coefficient for insulation level of electrical equipments. The applicable insulation level at different altitudes of 27.5 kV electrical equipments are proposed.