Overvoltage controller for brushless excitation generator

The utility model discloses an overvoltage controller for a brushless excitation generator. An internal logic comparator/D conversion chip is used for converting the detected voltage into digital quantity, an LED (Light-Emitting Diode) digital tube on a panel is used for displaying the detected voltage and release voltage, a relay is used for comparing and calculating the detected voltage with values of a pull-in voltage and the release voltage respectively through internal program, when the value of the detected voltage is greater than that of the pull-in voltage, the relay is pulled in, when the value of the detected voltage is greater than that of the pull-in voltage, the relay is released, a toggle switch is used for directly setting the pull-in voltage and the release voltage, the measuring accuracy is Ue+/-2%, and the working time of the electronic type voltage relay is 20 milliseconds. According to the overvoltage controller, the economic loss caused by the burning of user equipment and self equipment