OPERATING METHOD OF LOADING TIME IN DIESEL GENERATOR FACILITY

摘要

PURPOSE:To suppress the decrease in the rotating speed of an engine at the loaded motor starting time by controlling the field voltage so that the ratio of a ganerator voltage to the engine speed becomes equal when the engine speed decreases to the set value or lower due to loading. CONSTITUTION:When a Diesel generator facility start signal is outputted in emergency, a Diesel engine 1 is started, after starting is completed, the rotating speed is maintained at a rated rotating speed by a governor, and the voltage of the generator 2 is controlled to become equal to the rated voltage by an automatic voltage controller 6. When a breaker 13 is closed and an induction motor 14 is started, if the engine speed becomes the prescribed set value or lower for the rated rotating speed, a relay contact 10a is closed to transmit the detection signal of the engine rotating speed to the controller 6. When the controller 6 receives the rotating speed detection signal, the field voltage is controlled so that the ratio of the generator voltage to the engine speed becomes equal.