公开(公告)号：US06987390B2

公开(公告)日：2006-01-17

申请号：US10660330

申请日：2003-09-11

申请人： Franz Süss ,  Michael Krüger ,  Friedrich Kaufmann

发明人： Franz Süss ,  Michael Krüger ,  Friedrich Kaufmann

IPC分类号： G01R31/06 ,  G01R29/20 ,  G01R33/14 ,  G06G7/62

CPC分类号： G01R35/02 ,  G01R31/027

摘要： Testing a transformer by applying to the transformer a test signal, the frequency of which may be lower than the nominal frequency of the transformer. The voltage of the test signal may also be lower than the nominal voltage of the transformer. A number of frequency-dependent parameters are measured, particularly the eddy current resistance and the hysteresis curve of the transformer, in order to derive a simulation model which simulates the behavior of the transformer at different frequencies. Using this simulation model, it is possible to predict operating parameters of the transformer, such as the terminal voltage on the secondary and the terminal current in the secondary, during operation with a frequency deviating from the frequency of the test signal, particularly during operation with the nominal frequency of the transformer.

摘要翻译： 通过向变压器施加测试信号来测试变压器，测试信号的频率可能低于变压器的额定频率。 测试信号的电压也可能低于变压器的额定电压。 测量多个频率相关参数，特别是变压器的涡流电阻和滞后曲线，以得出模拟变压器在不同频率下的行为的仿真模型。 使用该仿真模型，可以在运行期间预测变压器的工作参数，例如次级端子电压和次级端子电流，频率偏离测试信号的频率，特别是在运行期间， 变压器的额定频率。