Experimental Investigation of Steel-Borne Acoustic Pulses for Fault Pinpointing in Pipe-Type Cable Systems: A Scaled-Down Model Approach
Pipe-type cable systems, including high-pressure fluid-filled (HPFF) and high-pressure gas-filled cables, are widely used for underground high-voltage transmission. These systems consist of insulated conductor cables within steel pipes, filled with pressurized fluids or gases for insulation and cool...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-10-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/24/21/7043 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850062871160946688 |
|---|---|
| author | Zaki Moutassem Gang Li Weidong Zhu |
| author_facet | Zaki Moutassem Gang Li Weidong Zhu |
| author_sort | Zaki Moutassem |
| collection | DOAJ |
| description | Pipe-type cable systems, including high-pressure fluid-filled (HPFF) and high-pressure gas-filled cables, are widely used for underground high-voltage transmission. These systems consist of insulated conductor cables within steel pipes, filled with pressurized fluids or gases for insulation and cooling. Despite their reliability, faults can occur due to insulation degradation, thermal expansion, and environmental factors. As many circuits exceed their 40-year design life, efficient fault localization becomes crucial. Fault location involves prelocation and pinpointing. Therefore, a novel pinpointing approach for pipe-type cable systems is proposed, utilizing accelerometers mounted on a steel pipe to capture fault-induced acoustic signals and employing the time difference of arrival method to accurately pinpoint the location of the fault. The experimental investigations utilized a scaled-down HPFF pipe-type cable system setup, featuring a carbon steel pipe, high-frequency accelerometers, and both mechanical and capacitive discharge methods for generating acoustic pulses. The tests evaluated the propagation velocity, attenuation, and pinpointing accuracy with the pipe in various embedment conditions. The experimental results demonstrated accurate fault pinpointing in the centimeter range, even when the pipe was fully embedded, with the acoustic pulse velocities aligning closely with the theoretical values. These experimental investigation findings highlight the potential of this novel acoustic pinpointing technique to improve fault localization in underground systems, enhance grid reliability, and reduce outage duration. Further research is recommended to validate this approach in full-scale systems. |
| format | Article |
| id | doaj-art-6ebea8fe191b419d9bf34dc267599f46 |
| institution | DOAJ |
| issn | 1424-8220 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-6ebea8fe191b419d9bf34dc267599f462025-08-20T02:49:49ZengMDPI AGSensors1424-82202024-10-012421704310.3390/s24217043Experimental Investigation of Steel-Borne Acoustic Pulses for Fault Pinpointing in Pipe-Type Cable Systems: A Scaled-Down Model ApproachZaki Moutassem0Gang Li1Weidong Zhu2Michael W. Hall School of Mechanical Engineering, Mississippi State University, Mississippi State, MS 39762, USAMichael W. Hall School of Mechanical Engineering, Mississippi State University, Mississippi State, MS 39762, USADepartment of Mechanical Engineering, University of Maryland, Baltimore County, Baltimore, MD 21250, USAPipe-type cable systems, including high-pressure fluid-filled (HPFF) and high-pressure gas-filled cables, are widely used for underground high-voltage transmission. These systems consist of insulated conductor cables within steel pipes, filled with pressurized fluids or gases for insulation and cooling. Despite their reliability, faults can occur due to insulation degradation, thermal expansion, and environmental factors. As many circuits exceed their 40-year design life, efficient fault localization becomes crucial. Fault location involves prelocation and pinpointing. Therefore, a novel pinpointing approach for pipe-type cable systems is proposed, utilizing accelerometers mounted on a steel pipe to capture fault-induced acoustic signals and employing the time difference of arrival method to accurately pinpoint the location of the fault. The experimental investigations utilized a scaled-down HPFF pipe-type cable system setup, featuring a carbon steel pipe, high-frequency accelerometers, and both mechanical and capacitive discharge methods for generating acoustic pulses. The tests evaluated the propagation velocity, attenuation, and pinpointing accuracy with the pipe in various embedment conditions. The experimental results demonstrated accurate fault pinpointing in the centimeter range, even when the pipe was fully embedded, with the acoustic pulse velocities aligning closely with the theoretical values. These experimental investigation findings highlight the potential of this novel acoustic pinpointing technique to improve fault localization in underground systems, enhance grid reliability, and reduce outage duration. Further research is recommended to validate this approach in full-scale systems.https://www.mdpi.com/1424-8220/24/21/7043acoustic pinpointingfault pinpointingfault locationHPFFunderground power transmission |
| spellingShingle | Zaki Moutassem Gang Li Weidong Zhu Experimental Investigation of Steel-Borne Acoustic Pulses for Fault Pinpointing in Pipe-Type Cable Systems: A Scaled-Down Model Approach Sensors acoustic pinpointing fault pinpointing fault location HPFF underground power transmission |
| title | Experimental Investigation of Steel-Borne Acoustic Pulses for Fault Pinpointing in Pipe-Type Cable Systems: A Scaled-Down Model Approach |
| title_full | Experimental Investigation of Steel-Borne Acoustic Pulses for Fault Pinpointing in Pipe-Type Cable Systems: A Scaled-Down Model Approach |
| title_fullStr | Experimental Investigation of Steel-Borne Acoustic Pulses for Fault Pinpointing in Pipe-Type Cable Systems: A Scaled-Down Model Approach |
| title_full_unstemmed | Experimental Investigation of Steel-Borne Acoustic Pulses for Fault Pinpointing in Pipe-Type Cable Systems: A Scaled-Down Model Approach |
| title_short | Experimental Investigation of Steel-Borne Acoustic Pulses for Fault Pinpointing in Pipe-Type Cable Systems: A Scaled-Down Model Approach |
| title_sort | experimental investigation of steel borne acoustic pulses for fault pinpointing in pipe type cable systems a scaled down model approach |
| topic | acoustic pinpointing fault pinpointing fault location HPFF underground power transmission |
| url | https://www.mdpi.com/1424-8220/24/21/7043 |
| work_keys_str_mv | AT zakimoutassem experimentalinvestigationofsteelborneacousticpulsesforfaultpinpointinginpipetypecablesystemsascaleddownmodelapproach AT gangli experimentalinvestigationofsteelborneacousticpulsesforfaultpinpointinginpipetypecablesystemsascaleddownmodelapproach AT weidongzhu experimentalinvestigationofsteelborneacousticpulsesforfaultpinpointinginpipetypecablesystemsascaleddownmodelapproach |