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Overvoltage prevention circuit for electricity generator

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专利汇可以提供Overvoltage prevention circuit for electricity generator专利检索,专利查询,专利分析的服务。并且PURPOSE: To prevent an overvoltage, by coupling a resistor in series between a flywheel diode and a field winding to raise the velocity of attenuation of an exciting current flowing through the field winding.
CONSTITUTION: A flywheel diode 8 is connected in parallel with an exciter field winding 5. A field current attenuation resistor 9 is coupled in series with the parallel circuit of the diode 8 and the field winding 5. The attenuation time constant Tf of the current of a field circuit is represented as Tf=Lf/(Rf+rf) where Lf denotes the inductance of the field winding 5, Rf denotes its resistance and rf denotes the resistance of the resistor 9. The attenuation time constant Tf can be reduced by increasing the resistance rf to prevent an overvoltage from occurring when a load is opened.
COPYRIGHT: (C)1980,JPO&Japio,下面是Overvoltage prevention circuit for electricity generator专利的具体信息内容。

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