for protection

Full Title

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 DC > using semiconductor devices in series with the load as final control devices > sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor > for protection

Classification Context

Section:

PHYSICS

Class:

CONTROLLING; REGULATING

Subclass:

SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES

Child Classifications

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• G05F 1/571 with overvoltage detector
• G05F 1/573 with overcurrent detector