Ground fault interruption using DSP based SSPC module

Details Ground fault interruption using DSP based SSPC module Ground fault interruption using DSP based SSPC module

2007-11-09

2011-11-01

Tran, Khoi (Department: 3664)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Aeronautical vehicle

C701S001000, C700S009000, C700S293000

Reexamination Certificate

active

08050806

ABSTRACT:
A ground fault interruption (GFI) system is incorporated onto a DSP based LRM of an aerospace vehicle. The GFI system operates with digital controls and, unlike the prior art, the system does not employ current transformers. Synchronization pulses are employed to coordinate instantaneous current measurement samplings in each phase of a multi-phase power system. Coordinated sampling may reduce phase angle current differential errors and improve operational precision of the GFI system.

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