188689 ⎘
Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems; Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices with motor driven tap switch controlled by discharge tubes or semiconductor devices
Regulator with reduced power consumption using clamp circuit
#2Voltage regulator error detection and correction
#3Centralized voltage controller and centralized voltage control system
#4On-load tap changer and manufacturing method thereof
#5Regulator with reduced power consumption using clamp circuit
#6Co-axial multi-zone induction cooking apparatus
#7System and method for regulation of voltage on an electrical network
#8Drive system for a tap changer
#9Useful improvements in the art of 3-phase electronic tap changer commutation device
#103-phase electronic tap changer commutation and device