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51318-10913-Inductive Interference from HVDC Transmission Lines on Close Proximity Pipeline Segments

Picture for Inductive Interference from HVDC Transmission Lines on Close Proximity Pipeline Segments
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The main purpose of this joint industrial R&D project was to perform detailed field measurements on selected pipeline segments in close vicinity to a High Voltage Direct Current (HVDC) transmission line during planned staged fault tests on the power line.

Product Number: 51318-10913-SG
Author: Boshra Momen Nejad / Levi Blumhagen
Publication Date: 2018
Industry: Pipelines, Tanks, and Underground Systems
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The main purpose of this joint industrial R&D project was to perform detailed field measurements on selected pipeline segments in close vicinity to a High Voltage Direct Current (HVDC) transmission line during planned staged fault tests on the power line. Induced voltages on these pipelines were recorded during the HVDC staged fault process, which was conducted by the utility company. The measurement results from these tests were used for further validation or modification of an existing industrial guideline which focuses on the influence of HVDC power lines on metallic pipelines. Verification of future modelling results was another expected outcome of this study. A pre-field laboratory test was conducted to ensure accurate calibration and functionality of equipment prior to the actual staged fault field testing. To check the functionality of the digital triggering on the data logging unit and choose an appropriate triggering level and methodology, a typical touch voltage waveform based on previous simulation forecasts was used. The test setup during the HVDC staged fault testing consists of an arrangement of ground rods, a differential high voltage probe and the data logging unit used in order to capture the transient fault waveforms on the pipelines.

Key words: HVDC Interference, Staged Fault, Field Measurements, Metallic Pipelines, Transient Waveform, Industrial Guideline

The main purpose of this joint industrial R&D project was to perform detailed field measurements on selected pipeline segments in close vicinity to a High Voltage Direct Current (HVDC) transmission line during planned staged fault tests on the power line. Induced voltages on these pipelines were recorded during the HVDC staged fault process, which was conducted by the utility company. The measurement results from these tests were used for further validation or modification of an existing industrial guideline which focuses on the influence of HVDC power lines on metallic pipelines. Verification of future modelling results was another expected outcome of this study. A pre-field laboratory test was conducted to ensure accurate calibration and functionality of equipment prior to the actual staged fault field testing. To check the functionality of the digital triggering on the data logging unit and choose an appropriate triggering level and methodology, a typical touch voltage waveform based on previous simulation forecasts was used. The test setup during the HVDC staged fault testing consists of an arrangement of ground rods, a differential high voltage probe and the data logging unit used in order to capture the transient fault waveforms on the pipelines.

Key words: HVDC Interference, Staged Fault, Field Measurements, Metallic Pipelines, Transient Waveform, Industrial Guideline

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