Title :
Induced Stray Voltages from Transmission Lines
Author :
Patel, Shashi ; Lambert, Frank C.
Author_Institution :
NEETRAC, Georgia Inst. of Technol., Atlanta, GA
Abstract :
Stray voltages are inherent in four-wire multigrounded distribution systems. At the customer´s premise, these voltages result from the interaction of multiple parameters of the primary and secondary neutral systems. The causes of stray voltages typically include large unbalanced loads in the neutral system, high neutral impedance, and lack of equipotential grounding at the customer´s premise. Non-conventional sources of stray voltages may also exist. These sources may consist of large triplen harmonic currents on the neutral system or induction from a nearby transmission line. This paper describes a case study involving induced stray voltages on a single phase distribution line running parallel with a 500 kV transmission line
Keywords :
distribution networks; overvoltage; power transmission faults; equipotential grounding; four-wire multigrounded distribution systems; single phase distribution line; stray voltages; transmission lines; triplen harmonic currents; Current measurement; Distributed parameter circuits; Fault diagnosis; Grounding; Impedance; Performance evaluation; Testing; Transmission line measurements; Transmission lines; Voltage measurement;
Conference_Titel :
Transmission and Distribution Conference and Exhibition, 2005/2006 IEEE PES
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-9194-2
DOI :
10.1109/TDC.2006.1668499
