一台单相变压器,额定值为SN=50kV·A,U1n/U2n=7200V/480V,f=50Hz,其空载、负载(短路)实验数据如下:
求小题(1)(2)问,,求学霸解答
Zk = 157 / 7 = 22.43 欧å§
Rk = P / I^2 = 615 / 7 * 7 = 12.55 欧å§
Xk = (Zk ^2 - Rk ^2 )^0.5 = 18.59欧å§
空载æ¶çéè = 0 空载æ¶çéè = 245 W
满载æ¶çéè = 615W 满载æ¶çéè =245W
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