Patent ID: 6791301
Filing Date: 2004-09-14
Classification: H02J,H02P

Abstract:
An apparatus for regulating the exciter current for a rotary-current generator, havinga voltage source, a rectifier connected to the voltage source, three phase windings connected to the rectifier, one evaluation unit connected to one phase winding, and one voltage regulator, whose input is connected to the evaluation unit and whose output is connected to the exciter winding of the rotary-current generator, wherein the evaluation unit (9) has three input terminals (10, 11, 12), and each of these input terminals is connected to one of the phase windings (5, 8, 7) of the rotary-current generator (2); the evaluation unit (9) is intended for evaluating the phase voltages associated with the three phase windings; In order to detect unauthorized work states and therefore to detect error functions of the rectifier or error functions of the phase windings; and the voltage regulator (3) in response to detecting unauthorized work states reduces the exciter current flowing through the exciter winding (8).