2、短路试验 UAU→Φ比正常运行小 P很小 R kNo k k X INO INo 234.5+75 225+75 R R R R k75C 234.5+6 225+02、短路试验 U U k N m 1    Fe 比正常运行小 P 很小 1 k k N U Z I   = 2 1 kN k N P R I   = 2 2 X Z R k k k = − 75 234.5 75 234.5 R R k C K  + = + 75 225 75 225 R R k C K  + = + 2 2 75 75 k k C k C Z R X = + Uk k N1 I I =   P P k Cu