| 摘要 |
A tap-changer transformer operated by the step-by-step principle in which its motor drive receives a signal to raise or lower the tap, has a voltage regulator in which the switching delay times and sensitivity values are freed matrix-like the respective tap changes. The actual voltage value of the transformer is compared with the preselected voltage setpoint and, based upon the control deviation, a value pair of delay and sensitivity are read out. This allows asymmetric response of the system as contrasted with the symmetrical response required by earlier systems. |
