变压器差动调试方法

Y/??_11变压器差动调试方法一：?IY.A?IY.BI=+I?.acd.a?3??IY.B?IY.CI=+I?.bcd.b?3??I=IY.C?IY.A+Icd.c?.c?3?

?IY.A?IY.BImax(=?re.a3??IY.B?IY.CImax(=re.b??3??I=max(IY.C?IY.A?re.c;I?.a;I?.b;I?.c1) 调试AIY.B=0A; IY.C=0A; I??.b=0A;测试仪加电流：a)Y侧动作值测试：IA=|IA|↑∠00…|IA|↑;IB=0A;IC=0.8Iop.min∠00Ab)制动斜率测试：IA=√3/kIre∠00A;IB=Ire∠1800A…?|IB|↓...↓;IC=Ire∠00A?0kk30=180II+I+∠I0∠Icd.aAIB↓rere=0?IB↓∠1800…B=?k33??0k30Icd.a=Ire?IB差流计算：180)=Ire∠0IB∠?Ire.a=max(kIre∠0、3??k3k00?∠+∠I0I0=I?I+I==0rerecd.cAC?k33?3…………

Y/??_11?IY.A?IY.BIk=+I?.acd.a?3??IY.B?IY.C+I?.b?Icd.b=k3??I=IY.C?IY.A+I?.ccd.c?3??IY.A?IY.B?Ire.a=max(k3??IY.B?IY.CImax(=re.b??3??I=max(kIY.C?IY.A?re.c;;1) 调试AIY.B=0A; IY.C=0A; I??.b=0A;测试仪加电流：a)Y侧动作值测试：IA=|IA|↑∠00…|IA|↑;IB=0.8Iop.min∠00A;IC=0.8Iop.min∠1800Ab)制动斜率测试：IA=√3/kIre∠00A;IB=Ire∠00A;IC=Icd∠1800A?|Icd|↑∠1800…|Icd|↑3;?kk3II(II)Ire∠00?(Ire∠00+Icd∠1800)=?Icd∠1800=?+=×cd.aABC?33k??k300Ire∠00、Ire∠00+Icd∠180)=Ire∠0?Ire.a=max(3k??kk300?III=+=?I∠0+I∠0=0cd.cABrere?k33?

Y/??_11变压器差动调试方法三：

?IY.A?IY.BIk=+I?.acd.a?3??IY.B?IY.C+I?.b?Icd.b=k3??I=IY.C?IY.A+I?.ccd.c?3??IY.A?IY.B;?Ire.a=max(k3??IY.BIY.CImax(=;re.b??3??I=max(kIY.C?IY.A;?re.cIY.B=0A; IY.C=0A; I??.b=0A;测试仪加电流：a)Y侧动作值测试：IA=|IA|↑∠00…|IA|↑;I’A=0A; IB=0A;IC=0.8Iop.min∠00Ab)制动斜率测试：IA=√3/kIre∠00A;IB=Ire∠1800A;IC=Ire∠00AI’A=Icd∠00A?|Icd|↑∠00…|Icd|↑?k3k00+Icd∠00)=Icd∠00180)I0(III(II’=++=∠+∠cd.aABArere?3k3??k300Ire∠00、Ire∠180+Icd∠00)=Ire∠0?Ire.a=max(3k??kk300?IIII0I0=+=?∠+∠=0Ccd.cArere?k33?31) 调试A

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