10kV配电变压器接线组别对供电电压影响的探讨  

Study on the Impact of 10kV Distribution Transformer's Connection Pottern on Power Supply Voltage

作　　者：江卫中 徐青龙 顾明星 

机构地区：[1]国网江苏省电力公司苏州供电公司,江苏苏州215004

出　　处：《供用电》2016年第11期63-65,74,共4页Distribution & Utilization

摘　　要：在10kV配网中变压器接线组别通常采用Yyn0和Dyn11两种方式,文章通过对两种接线方式的配电变压器的优、缺点进行比较分析,结合电网电压治理工作中的实际案例,着重探讨了不同接线组别配电变压器在三相负荷不平衡条件下,对三相电压不平衡的影响,从电压治理的角度论述了配电变压器宜选用Dyn11接线组别的必要性。YynO and Dyn11 patterns are usually used in l OkV distribution network. The advantages and disadvantages of distribution transformers with these two connection patterns are compared. Combined with the actual case of low voltage control, the paper also analyzes the impact of distribution transformer with different connection patterns on the unbalanced voltage. From thepoint ofvoltage control, the paper explains reasons of Dyn11 connection pattern shouldbe used for distribution transformer.

关 键 词：配电变压器 Yyn0 DYN11 电压不平衡 接线组别 供电电压 

分 类 号：TM72[电气工程—电力系统及自动化]