ApplicationNo. 06/445846 filed on 12/01/1982
US Classes:361/64, With communication between feeder disconnect points361/66With communication between feeder disconnect points
ExaminersPrimary: Moose, Harry E. Jr.
Attorney, Agent or Firm
International ClassesH02H 1/00 (20060101)
H02H 7/26 (20060101)
Foreign Application Priority Data1981-12-02 JP
AbstractA protective relay system for power system is disclosed which receives electrical information from several points of a power transmission line via optical fiber transmission line to protect the system from a line fault. Instruction is sent to the respective points when a line fault phenomenon is detected from the information received for separating it from the power system. The system has high immunity from electrical noise in the process of information transmission to obtain improved response.