Title :
A novel transmission-line voltage measuring method
Author :
Thomas, David W P ; Batty, Richard Eric ; Christopoulos, Christos ; Wang, Anding
Author_Institution :
Dept. of Electr. & Electron. Eng., Nottingham Univ., UK
fDate :
10/1/1998 12:00:00 AM
Abstract :
A novel transmission-line monitoring method for estimating the transient voltage from the transient current alone is presented. This is based on the properties of traveling waves instigated on high-voltage transmission lines as a result of a fault, switching operation, or a lightning strike. The method is unique in that superimposed voltage transients can be deduced without employing measurements taken from voltage transducers. It is demonstrated that full advantage can be made of the broad bandwidth of the current transducers to improve fault location and enable high-speed traveling wave protection to be applied on power systems
Keywords :
electric impedance measurement; fault location; lightning protection; power system transients; power transmission protection; voltage measurement; HV transmission lines; broad bandwidth; current transducers; fault location; fault switching operation; high-speed traveling wave protection; impedance measurement; lightning strike; superimposed voltage transients; transient current; transient voltage; transmission-line voltage measurement; traveling waves; voltage transducers; Bandwidth; Lightning; Monitoring; Power system protection; Power system transients; Power transmission lines; Transducers; Transmission line measurements; Transmission lines; Voltage measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
