三相组合互感器校验用试验电源设计

Power Design for Detection of Three-phase Combined Transformer

三相组合互感器校验用试验电源包括三相电压源和三相电流源,以该试验电源对三相组合互感器进行误差校验时可选择电源单相输出或三相同时输出。试验结果表明:所设计的三相组合互感器校验用试验电源可同时满足三相法和单相法的试验方法要求,电源输出范围广,调节精度高。

A test power supply for calibration of threephase combined transformer is designed, which in cludes three-phase voltage source and three-phase current source. When the test power supply is used to check the error of the three-phase combined transformer, the single-phase output of the power supply or the simultaneous output of the three-phase power supply can be selected. The test results show that the de- signed test power supply for calibration of three-phase combined transformer can meet the requirements of both three-phase and single-phase methods. The output range of the power supply is wide and the adjust precision is high.