Journal ArticleDOI
Power Systems in Close Proximity to Pipelines
John P. Nelson
- Vol. 22, Iss: 3, pp 435-441
TLDR
In this paper, the effect of paralleling electric circuits has been long understood by the electrical engineer and proper engineering has led to solutions to most of these problems, however, a problem has developed with the addition of pipelines to the electrical corridors or, conversely, electrical lines to the pipeline corridors.Abstract:
In recent years, a trend has developed toward building energy corridors which better utilize land resources. Due to the adverse environmental impacts of building electrical power lines by utility companies and the installation of pipelines by the petrochemical industry, many governmental entities are requiring that electric power lines and underground pipelines use the same transmission (energy) corridor. The energy corridor, by design, is used to minimize the land requirements for transmitting energy?whether by electrical transmission lines or through pipelines. The energy corridor does not necessarily minimize the lengths of transmission lines but, conversely, may require longer lines to utilize the land resources better by paralleling transmission systems. The electric power companies have utilized this practice in the past with electrical corridors and are being pressured to make every effort to parallel electric lines in the future on these same corridors. The effect of paralleling electric circuits has been long understood by the electrical engineer. Induced currents and voltages occur between the electrical circuits and may cause relaying, communications, and safety problems. Proper engineering has led to solutions to most of these problems. A problem has developed with the addition of pipelines to the electrical corridors or, conversely, electrical lines to the pipeline corridors. The problem is that the pipeline has become part of the electrical circuit due to electrostatic and electromagnetic coupling. This coupling may cause induced currents and voltages to exist on the pipeline. The pipeline is addressed as an electrical circuit.read more
Citations
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Journal ArticleDOI
Method for diagnosis of the effect of AC on the X70 pipeline due to an inductive coupling caused by HVPL
TL;DR: In this paper, a method to investigate the effects of the induced AC density on the corrosion and the cathodic protection performances of the X70 steel buried pipeline due to the inductive interference caused by HVPL is proposed.
Proceedings ArticleDOI
Effect of increasing energy demand on the corrosion rate of buried pipelines in the vicinity of high voltage overhead transmission lines
TL;DR: In this paper, the authors present the effect of increase in energy demand on the corrosion rate of buried steel pipelines in the vicinity of HVTLs and show that an increase in line current increases the corrosion of the pipeline.
Journal ArticleDOI
Variation in Phase Shift of Multi-Circuits HVTLs Phase Conductor Arrangements on the Induced Voltage on Buried Pipeline: a Theoretical Study
TL;DR: In this article, the induced open circuit voltage on a buried metallic pipeline running in parallel with the power transmission lines in three Rand Water sites, South Africa, was investigated using the concept of mutual impedances between two circuits.
GUI-Based AC induced corrosion monitoring for buried pipelines near HVTLs
Kazeem B. Adedeji,A. A. Ponnle,Bolanle Tolulope Abe,Adisa A. Jimoh,Adnan M. Abu-Mahfouz,Yskandar Hamam +5 more
TL;DR: In this article, a stand-alone application with graphical user interface (GUI) developed for monitoring AC induced corrosion expectancies of buried pipelines near a high voltage AC transmission line is presented.
Proceedings ArticleDOI
Planar magnetic field distribution underneath two-circuit linear configured power lines in various phase arrangements
TL;DR: It is concluded that in placing pipelines in the vicinity of AC double circuit HVTLs, it is essential to consider the field distribution by the phase arrangement of the line, and if possible, pipelines should be placed in a region of minimum field intensity within the allowable servitude of the lines.
References
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Journal ArticleDOI
The Calculation of Magnetic Coupling from Overhead Transmission Lines
TL;DR: In this paper, a rigorous solution for the longitudinal electrical field (LEF) using the Carson's series is presented, which requires the use of a computer or programmable calculator.
Journal ArticleDOI
High-Altitude Considerations for Electrical Power Systems and Components
TL;DR: In this paper, the relationship of relative air density and altitude is discussed, followed by the effects of altitude on electric power system components and suggestions or solutions to the high-altitude problem.
Journal ArticleDOI
A Cathodically Protected Electrical Substation Ground Grid
John P. Nelson,William K. Holm +1 more
TL;DR: In this paper, a discussion on the design of a cathodically protected electrical substation grounding system in which a steel ground grid and steel ground rods were used in place of the commonly used copper ground grids and copperweld ground rods was presented.
Journal ArticleDOI
Ground Switch Interrupting Duty and Total Ground Current Imposed by Induction from Parallel Transmission Lines
TL;DR: In this article, both the electrostatic and the electromagnetic induction levels are given for the different voltage class combinations between the energized and the de-energized circuits in the range 69 kV to 1150 kV.