Patent ID: 11862963
Assignee: SAFRAN POWER USA, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A method, comprising:
monitoring a point of regulation voltage input to a generator control unit;
monitoring a generator output voltage as a backup point of regulation voltage input;
detecting an overvoltage fault at the point of regulation voltage input, the backup point of regulation voltage input, or both;
opening a first solid-state switch at a blocking circuit using analog control to prevent provision of an input signal to a generator excitation field, wherein the first solid-state switch is opened when a voltage of the input signal is above a voltage threshold that induces the generator output voltage to an overvoltage fault value;
opening a generator excitation field relay in response to detecting the overvoltage fault; and
opening a second solid-state switch at a blocking circuit in response to detecting that an input signal to the generator excitation field is above a voltage threshold that induces the generator output voltage to an overvoltage fault value.