Title :
Relaying the AEP 765-kV System
Author :
Horowitz, Stanley H. ; Seeley, Harold T.
Author_Institution :
American Electric Power Service Corporation
Abstract :
The basic relaying philosophy of the American Electric Power 765-kV system is covered. The use of duplicate primary protection, each based on a different operating principle, is explained. Of significance is the unique use of single sideband power-line carrier and transfer tripping. The effect of line oscillations and asymmetry of transmission line impedances is discussed. Included also is a discussion of relay characteristics, ac and dc control power, shielding and overvoltage, and equipment protection.
Keywords :
Batteries; Impedance; Integrated circuit interconnections; Power system protection; Power system relaying; Power transmission lines; Protective relaying; Relays; Security; Voltage control;
Journal_Title :
Power Apparatus and Systems, IEEE Transactions on
DOI :
10.1109/TPAS.1969.292530
