文档介绍：发电机功角的测量使用说明书发电机内电势测试仪使用说明书中国电力科学研究院2005年1月目录1(发电机功角的测量原理.............................................................................................................32(测量仪器的基本原理:.............................................................................................................33(技术指标.....................................................................................................................................44(功能.............................................................................................................................................55(发电厂需提供的测量信号.........................................................................................................55(1(火力发电厂提供的测量信号...................................................................................55(2(水力发电厂提供的测量信号.....................................................................................66(内电势测试仪的结构.................................................................................................................66(1(GJ-205A型内电势测试仪结构及安装尺寸...............................................................66(2(GJ-205型内电势测试仪结构及安装尺寸..................................................................76(3(发电机内电势测试仪校初始功角...............................................................................81(发电机功角的测量原理发电机的功角是指发电机的内电势与机端电压之间的夹角,其相量关系如图δψIEJ?I?XUE、U、δ三者之间的函数关系如下:P?X?sin?(1)测量发电机功角的关键是测取发电机内电