Note: The power supply shall be test at max AC voltage (270Vac) and min load or no load.
应该在最大交流输入电压270伏和轻载，空载下测试。
Based on the results of no load and load test, the paper studies the analysis and judgment methods of power transformer faults, and gives some field examples.
介绍根据空载试验及负载试验结果分析判断变压器故障的方法，并给出若干实例。
In the no-load test of transformer, because of the low power factor and non-sinusoid current waveform, the high precision measurement is difficult.
变压器的空载试验中，由于功率因数低，空载电流不是正弦信号，高精度测量其有功功率具有一定的难度。
In this paper, the sources of error in no-load engine power testing are analyzed. Two methods to reduce the errors are put forward, based on the investigation of actual test data.
分析了无外载测功法中的主要误差来源，在对实测数据分析研究的基础上，提出了两种提高精度的方法。
This paper mainly discusses the two operating points for the test of synchronous machines, no-load point and zero power loading point.
本文主要对同步电机试验中的空载点和零功率负载点两个特殊工作点的运行工况进行了分析。
This paper mainly discusses the two operating points for the test of synchronous machines, no-load point and zero power loading point.
本文主要对同步电机试验中的空载点和零功率负载点两个特殊工作点的运行工况进行了分析。
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