--發(fā)電機阻抗,![](http://192.168.1.17:8000/UploadFiles/UploadFiles/20093249219975.jpg)
--歸算到高壓側時的變壓器阻抗;
UnG--發(fā)電機-變壓器組連接點Q的系統(tǒng)標稱電壓;
tr--在主分接時的變壓器額定變比;
tf--變壓器的假想變比,tf=Un/UrG=UnQ/UrG;
x〃d--歸算到額定阻抗時的發(fā)電機超瞬態(tài)電抗,x〃d=x〃d/ZrG;
--發(fā)電機額定電流IrG與電壓UrG間的相角;
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