A Current Differential Relay System Using Fiber Optics Communications
- Resource Type
- Periodical
- Authors
- Sun, S.C.; Ray, R.E.
- Source
- IEEE Transactions on Power Apparatus and Systems IEEE Trans. Power Appar. Syst. Power Apparatus and Systems, IEEE Transactions on. PAS-102(2):410-419 Feb, 1983
- Subject
- Power, Energy and Industry Applications
Components, Circuits, Devices and Systems
Relays
Optical fiber communication
Power system relaying
Optical fibers
Wire
Voltage
Circuit faults
Protective relaying
Telecommunication network reliability
Protection
- Language
- ISSN
- 0018-9510
Relay systems have made use of metallic circuits for communications entering the power station environment. These circuits have at times affected the system reliability due to extraneous voltage influences. The system described makes use of a unique fiber optic channel in place of the metallic circuit. The system takes advantage of the glass fiber's virtual immunity to the effect of extraneous voltages. The relay system also uses new techniques for its sequence network and its current comparison method. These improvements increase the relay system reliability and broaden the area of application.