變壓器實(shí)驗(yàn)報(bào)告-4

電機(jī)與拖動(dòng)試驗(yàn)PAGE4單相變壓器一、實(shí)驗(yàn)?zāi)康?、通過(guò)空載和短路實(shí)驗(yàn)測(cè)定變壓器的變比和參數(shù)。2、通過(guò)負(fù)載實(shí)驗(yàn)測(cè)取變壓器的運(yùn)行特性。二、實(shí)驗(yàn)項(xiàng)目1、空載實(shí)驗(yàn)測(cè)取空載特性U0=f(I0)，P0=f(U0),cosφ0=f(U0)。2、短路實(shí)驗(yàn)測(cè)取短路特性UK=f(IK)，PK=f(IK),cosφK=f(IK)。3、純電阻負(fù)載實(shí)驗(yàn)三、實(shí)驗(yàn)設(shè)備序號(hào)型號(hào)名稱(chēng)數(shù)量1D33交流電壓表1件2D32交流電流表1件3D34-3單三相智能功率、功率因數(shù)表1件4DJ11三相組式變壓器1件5D42三相可調(diào)電阻器1件6D51波形測(cè)試及開(kāi)關(guān)板1件四、實(shí)驗(yàn)數(shù)據(jù)表3-1空載實(shí)驗(yàn)數(shù)據(jù)序號(hào)實(shí)驗(yàn)數(shù)據(jù)計(jì)算數(shù)據(jù)U0(V)I0(A)P0(W)UAXcosφ01660.3872.12650.37432600.361.72450.43583550.351.52200.54544500.3281.32000.5775450.281.11800.6796400.2280.91600.72587300.1490.51250.69448250.0710.51001表3-2短路實(shí)驗(yàn)數(shù)據(jù)室溫℃序號(hào)實(shí)驗(yàn)數(shù)據(jù)計(jì)算數(shù)據(jù)UK（V）IK（A）PK（W）cosφK1230.3874.50.5055612220.3640.5050513210.353.70.5034014200.3283.30.5030495170.282.30.4831936130.2281.40.472335790.1490.60.447427840.0710.10.352113表3-3純電阻負(fù)載實(shí)驗(yàn)數(shù)cosφ2=1,U1=UN=V序號(hào)12345678U2（V）220210208206205204201200I2（A）00.1310.150.2020.250.30.350.4五、實(shí)驗(yàn)結(jié)果分析1、計(jì)算變比K2、繪出空載特性曲線和計(jì)算激磁參數(shù)rm、zm、xm。3、繪出短路特性曲線和計(jì)算短路參數(shù)rk、zk、xk。4、利用空載和短路實(shí)