| Author | Search for: Djokic, Branislav1; Search for: Parks, Harold1 |
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| Affiliation | - National Research Council of Canada. Measurement Science and Standards
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| Format | Text, Article |
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| Conference | Conference on Precision Electromagnetic Measurements, July 8-13, 2018, Paris, France |
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| Subject | instrument transformers; merging unit; calibration; power bridge; current comparator; measurement uncertainty |
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| Abstract | A synchronized current-comparator-based power bridge for calibrating analog merging units at power frequencies of 60 Hz and 50 Hz is described. Analog merging units take analog signals from instrument transformers, convert them into digital form, pack the sampled values into Ethernet frames conforming to the IEC 61850-9-2 LE specification and stream the frames to other equipment in a digital substation for further processing. Since the sampled values are used for protection and metering, the merging units need to be calibrated. The expanded uncertainties (k=2) of the described calibration system are estimated to be better than 30 11A/A for magnitude and 60 µrad for phase. |
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| Publication date | 2018-07 |
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| Publisher | The Conference |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 23004094 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 55e21d30-0dda-4908-b8b3-66aa0c764d22 |
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| Record created | 2018-09-27 |
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| Record modified | 2021-01-21 |
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