Study of Transformer Standby Supplying for Each Other

Feng Xingming（Central-south Architectural Design Institute Co. Ltd., Wuhan 430071，China）

Abstract Based on power supppling requirements for class 1 & 2 load，the mode and requirements for transformer standby supplying for each other are expatiated, the relationship between the occupying ratio of class 1 & 2 loads and load rate of transformer is described，and taking project design as example，the method and operating procedure by using special transformer for air-condition as important load standby suppling is introduced.

Key words　Transformer Standby suppling Load rate Interlock Powe automation monitoring

摘　要　根据一、二级负荷的供电要求，阐述了变压器互为备供的方式和要求，说明了一、二级负荷占比与变压器负荷率的关系，并用工程设计实例介绍了利用空调专用变压器作为重要负荷备供的方法和操作流程。

关键词 变压器 备供 负荷率 联锁 电力自动化监控