Accuracy and Repeatability of Rolling Stock Current Distortion Tests for Interference to Signalling
The testing of rolling stock for the assessment of disturbance in signalling circuits is considered with a focus on the measurement process and the selection of operating conditions. The definition of interference limits is briefly reviewed, but they are considered an external input. The spectral be...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-03-01
|
| Series: | Metrology |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2673-8244/5/1/17 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850279919759654912 |
|---|---|
| author | Jacopo Bongiorno Sahil Bhagat |
| author_facet | Jacopo Bongiorno Sahil Bhagat |
| author_sort | Jacopo Bongiorno |
| collection | DOAJ |
| description | The testing of rolling stock for the assessment of disturbance in signalling circuits is considered with a focus on the measurement process and the selection of operating conditions. The definition of interference limits is briefly reviewed, but they are considered an external input. The spectral behavior of acquired signals and the evaluation of repeatability are instead discussed with the help of three different real test cases, considering correspondence between similar operating points and differences as rolling stock operation evolves during a test run. Repeatability evaluated as standard deviation is in the order of 3% to 5% in the harmonic and audio frequency range for the different systems, slightly lower for AC railways; above about 10–15 kHz it increases to 30%. Uncorrelated components (with much lower amplitudes) may show much higher dispersion. |
| format | Article |
| id | doaj-art-bdf1ba7e24b14f4a8768050afd6688d1 |
| institution | OA Journals |
| issn | 2673-8244 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metrology |
| spelling | doaj-art-bdf1ba7e24b14f4a8768050afd6688d12025-08-20T01:48:57ZengMDPI AGMetrology2673-82442025-03-01511710.3390/metrology5010017Accuracy and Repeatability of Rolling Stock Current Distortion Tests for Interference to SignallingJacopo Bongiorno0Sahil Bhagat1Railway and Certification Laboratory, RINA Services S.p.A.,16145 Genova, ItalyDepartment of Electrical, Electronic, Telecommunications and Naval Engineering, University of Genova, 16145 Genova, ItalyThe testing of rolling stock for the assessment of disturbance in signalling circuits is considered with a focus on the measurement process and the selection of operating conditions. The definition of interference limits is briefly reviewed, but they are considered an external input. The spectral behavior of acquired signals and the evaluation of repeatability are instead discussed with the help of three different real test cases, considering correspondence between similar operating points and differences as rolling stock operation evolves during a test run. Repeatability evaluated as standard deviation is in the order of 3% to 5% in the harmonic and audio frequency range for the different systems, slightly lower for AC railways; above about 10–15 kHz it increases to 30%. Uncorrelated components (with much lower amplitudes) may show much higher dispersion.https://www.mdpi.com/2673-8244/5/1/17conducted interferenceguideway transportation systemsharmonicspower qualityspectral analysissupply transients |
| spellingShingle | Jacopo Bongiorno Sahil Bhagat Accuracy and Repeatability of Rolling Stock Current Distortion Tests for Interference to Signalling Metrology conducted interference guideway transportation systems harmonics power quality spectral analysis supply transients |
| title | Accuracy and Repeatability of Rolling Stock Current Distortion Tests for Interference to Signalling |
| title_full | Accuracy and Repeatability of Rolling Stock Current Distortion Tests for Interference to Signalling |
| title_fullStr | Accuracy and Repeatability of Rolling Stock Current Distortion Tests for Interference to Signalling |
| title_full_unstemmed | Accuracy and Repeatability of Rolling Stock Current Distortion Tests for Interference to Signalling |
| title_short | Accuracy and Repeatability of Rolling Stock Current Distortion Tests for Interference to Signalling |
| title_sort | accuracy and repeatability of rolling stock current distortion tests for interference to signalling |
| topic | conducted interference guideway transportation systems harmonics power quality spectral analysis supply transients |
| url | https://www.mdpi.com/2673-8244/5/1/17 |
| work_keys_str_mv | AT jacopobongiorno accuracyandrepeatabilityofrollingstockcurrentdistortiontestsforinterferencetosignalling AT sahilbhagat accuracyandrepeatabilityofrollingstockcurrentdistortiontestsforinterferencetosignalling |