高海拔地区医疗建筑变配电设备选择

龙 君（同济大学建筑设计研究院（集团）有限公司,上海市 200092）

Option of Power Transformation and Distribution Equipment for Medical Buildings in High Altitude Areas

LONG Jun(Tongji Architectural Design(Group)Co.,Ltd.,Shanghai 200092，China)

 Abstract：Based on the example of electrical design for buildings in a secondary hospital in Qinghai‑Tibet Plateau, the computing and selection of power supply and distribution equipment for project design in high altitude areas are analyzed according to the correction and calculation of electrical parameters of 10 kV medium‑voltage distribution cabinet,transformer,low‑voltage circuit‑breaker,UPS power distribution equipment and diesel generator unit.

Key words：power transformation and distribution equipment;high altitude correction;altitude correction factor;power‑frequency withstand voltage;impulse withstand voltage;short‑circuit breaking capacity;capacitance reduction factor;applicable grade for high altitude

摘　要：结合青藏高原某二级医院建筑电气设计实例，从高海拔环境中10 kV中压配电柜、变压器、低压断路器、UPS配电装置、柴油发电机组电气参数的修正计算等方面，分析高海拔地区工程设计中供配电设备的计算与选择。

关键词：变配电设备； 高海拔修正；海拔修正因数；工频耐受电压；冲击耐受电压；短路分断能力；降容系数；高海拔适用等级

中图分类号：TU852      　　  　  文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2022.09.006