| 摘要 |
PURPOSE:To compensate the reponse of a motor operation type automatic adjuster, by adjusting a transformer voltage responsively with an inductive voltage divider only at rapid change of a load and replacing the deviation with an output of an inductive voltage adjuster. CONSTITUTION:A three-phase average voltage of a load is picked up with an automatic adjusting circuit and an inductive voltage divider 10 is automatically adjusted to cancel a deviation between the average voltage and a reference voltage. Simultaneously, the motor operation of an inductive voltage adjuster 3 is automatically adjusted to cancel the difference between the deviation and an amount proportional to a voltage of a transformer 5. Thus, at the rapid change of the load, first the transformer 5 eliminates the deviation with a response control, while the voltage of the transformer 5 is decreased with the motor operation to be replaced into an output of the adjuster 3. At stady state, the transformer 5 is in short-circuit, the voltage change at rapid change of load is effectively compensated waiting for the voltage change of load and the responsive control is made easy by avoiding the increase in the capacity of the inductive voltage divider 10. |
