REACTIVE CURRENT COMPENSATOR FOR SYNCHRONOUS GENERATOR AUTOMATIC VOLTAGE REGULATOR

摘要

PURPOSE:To compensate a reactive cross current without voltage variation by using the reactive current, which flows intergenerators and is selectively detected independently of a reactive current of the system, as a compensating signal. CONSTITUTION:A reactive current is selectively detected by the current transformers 41, 42. The transformers 41, 42 detect a current in the circuit in which the current transformers 31 and 32, which detect the stator current of two synchronous generators, are butted and connected with each other. The reactive cross current is applied to the corresponding reactor 63 or 64. In this way, an output of the potential transformer which indicates the mean value of terminal voltage of the two generators is compensated by the reactive cross current.