High voltage generator excitation set overvoltage protection circuit


Posted on Dec 11, 2010

DC voltage of the generator field winding by a three-phase thyristor rectifier provided later. In the same period incorrect, out of step, system failure, etc., the rectifier wi


High voltage generator excitation set overvoltage protection circuit
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ll cause hazardous elements and the field winding on the DC side over-voltage insulation, this must limit over-voltage, commonly used as shown in Fig. 13-90 protection circuit. Figure, BQ as excitation windings. Varistor R, as a back-up over-voltage protection element.




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