Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

10114 Manage Pipeline Integrity by Predicting and Mitigating HVAC Interference

Picture for 10114 Manage Pipeline Integrity by Predicting and Mitigating HVAC Interference
Available for download

In this paper, a simulation software suite will be presented that is able to model both resistive (“close field”) as inductive (“far field”) interference in right of way’s (ROW’s) with pipeline and power transmission networks of any complexity.

Product Number: 51300-10114-SG
ISBN: 10114 2010 CP
Author: L. Bortels, J. Parlongue, Wolfgang Fieltsch, PE, Sorin Segall, PE
Publication Date: 2010
Industry: Energy Generation
$0.00
$20.00
$20.00

Sharing of common corridors by gas pipelines and overhead power transmission lines is becoming quite common. However, electrical energy can be transferred from power transmission lines to pipelines through inductive, conductive and capacitive coupling. When a power transmission line runs in parallel with a pipeline for a considerable length, induced AC voltages may appear on the pipeline.

While there are significant benefits in sharing a corridor between pipelines and power transmission lines, e.g. joint land use, there are also many concerns. The main ones are safety considerations for operation and maintenance personnel on pipelines, direct effects on the pipeline, such as corrosion and coating damage and effects on the electrical devices associated with the pipeline related to cathodic protection, metering and monitoring. AC induced corrosion is a significant threat to the integrity of buried pipelines, due to its very high localized corrosion rate which can and has resulted in metal loss of more than 1 mm per year. AC corrosion mainly occurs at small coating holidays on well coated pipelines when the pipeline suffers from induced ac voltages.

In this paper, a simulation software suite will be presented that is able to model both resistive (“close field”) as inductive (“far field”) interference in right of way’s (ROW’s) with pipeline and power transmission networks of any complexity.

Practical results of simulations on two different configurations will be presented. The first one deals with a pipeline and powerline crossing in a two-layer very high resistivity soil. The second one studies induced steady state voltages on a gathering piping system located in several powerline corridors.

Keywords: HVAC, simulation software, pipeline, power transmission line, resistive interference, conductive interference, design validation, mitigation

Sharing of common corridors by gas pipelines and overhead power transmission lines is becoming quite common. However, electrical energy can be transferred from power transmission lines to pipelines through inductive, conductive and capacitive coupling. When a power transmission line runs in parallel with a pipeline for a considerable length, induced AC voltages may appear on the pipeline.

While there are significant benefits in sharing a corridor between pipelines and power transmission lines, e.g. joint land use, there are also many concerns. The main ones are safety considerations for operation and maintenance personnel on pipelines, direct effects on the pipeline, such as corrosion and coating damage and effects on the electrical devices associated with the pipeline related to cathodic protection, metering and monitoring. AC induced corrosion is a significant threat to the integrity of buried pipelines, due to its very high localized corrosion rate which can and has resulted in metal loss of more than 1 mm per year. AC corrosion mainly occurs at small coating holidays on well coated pipelines when the pipeline suffers from induced ac voltages.

In this paper, a simulation software suite will be presented that is able to model both resistive (“close field”) as inductive (“far field”) interference in right of way’s (ROW’s) with pipeline and power transmission networks of any complexity.

Practical results of simulations on two different configurations will be presented. The first one deals with a pipeline and powerline crossing in a two-layer very high resistivity soil. The second one studies induced steady state voltages on a gathering piping system located in several powerline corridors.

Keywords: HVAC, simulation software, pipeline, power transmission line, resistive interference, conductive interference, design validation, mitigation

Product tags
Also Purchased
Picture for AC Interference and Mitigation: Heartland Case Study
Available for download

AC Interference and Mitigation: Heartland Case Study

Product Number: 51317--9461-SG
ISBN: 9461 2017 CP
Author: Matthew Lechelt
Publication Date: 2017
$20.00

Challenges associated with coordinating the modelling, design, and installation of an alternating current interference and mitigation systems. The project consisted of a 65 kilometer long double circuit 500 kilovolt (kV) overhead transmission in a heavily congested right-of-way corridor with more than 80 pipelines.
Picture for AC Interference Risk Ranking: Case Study
Available for download

51316-7393-AC Interference Risk Ranking: Case Study

Product Number: 51316-7393-SG
ISBN: 7393 2016 CP
Author: Wolfgang Fieltsch
Publication Date: 2016
$20.00
Picture for PIPELINE STRAY DIRECT CURRENT (DC) INTERFERENCE
Available for download

51318-10689-PIPELINE STRAY DIRECT CURRENT (DC) INTERFERENCE

Product Number: 51318-10689-SG
Author: Eric S. Langelund
Publication Date: 2018
$20.00

Concerns related to stray DC interference. Including safety, testing, documentation and lessons learned. Also addressed are DC powered transit systems and other unordinary sources of DC interference.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support