Title :
Distribution line safety grounding: parametric analysis
Author :
Dawalibi, F.P. ; Southey, R.D. ; Hotte, P.
Author_Institution :
Safe Eng. Services & Technol. Ltd., Montreal, Que., Canada
Abstract :
This paper presents key results of a parametric analysis which quantifies and compares the effectiveness of different safety grounding methods on overhead, radial, distribution systems operating at voltages up to 86.6 kV. The analysis, comprising approximately 10000 computer simulations, studied direct energization and magnetic field induction scenarios (load and fault conditions), systems with and without grounded neutrals, and the influence of a large number of system parameters on work site voltages. This paper presents, in graphical form, the ranges of voltages resulting from variations in the parameters studied and discusses these results. These can be used to evaluate lineman safety on a large variety of overhead distribution systems.
Keywords :
distribution networks; earthing; electrical faults; electromagnetic induction; magnetic fields; maintenance engineering; power overhead lines; safety; 86.6 kV; direct energization; distribution line; fault conditions; grounded neutrals; lineman safety; load conditions; magnetic field induction; overhead radial distribution systems; parametric analysis; safety grounding; system parameters; work site voltages; Computer simulation; Conductors; Grounding; Magnetic analysis; Magnetic field measurement; Magnetic fields; Power distribution lines; Protection; Safety; Voltage;
Conference_Titel :
Transmission & Distribution Construction, Operation & Live-Line Maintenance Proceedings, 1998. ESMO '98. 1998 IEEE 8th International Conference on
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-4883-4
DOI :
10.1109/TDCLLM.1998.668383