两台电压比相近的变压器并列运行优化分析  

Two Rated Voltages Ratio Close Transformer Parallel Running Optimized Analysis

作　　者：魏韬[1] 张洪涛[1] 袁卫国[1] 毋富安[1] 

机构地区：[1]河南省电力公司周口供电公司,河南周口466000

出　　处：《河南电力》2008年第2期29-31,共3页Henan Electric Power

摘　　要：变压器并列运行必须满足的四个条件是:接线组别相同;电压比相等,允许误差±5%;阻抗电压百分数相等,允许误差±10%;容量比不超过3∶1。两台额定档位电压比不同的变压器,能不能并列运行呢?我们通过计算,找出电压比最近的档位,计算出产生的差流值,从而确定是否能够并列运行。The transformer parallel running must satisfy four conditions are： The connection group leaves must to be same; Fixed voltage ratio is equal,permits phase difference ± 5% ;The bucking voltage percentage is equal,permits phase difference ±10% ;The capacity compares does not surpass 3 ： 1. Then two fixed voltage ratio different transformer finally can the parallel running？ We through the computation, discover change compared to the recent files position ,the computation travel on official business the value, then calculates the link flow value which produces, thus is clear about whether can the parallel running.

关 键 词：变压器 并列运行 电压比 差流 

分 类 号：TM411.05[电气工程—电器]