Abstract
Traceability of the current ratio is crucial for the measurement of electrical energy in revenue metering. A comparison of the AC current ratio was therefore performed within EURAMET in the time period 2012 - 2016, using a precision CT as the traveling device. The Czech Metrology Institute (CMI) as coordinator processed the measurement results of the 15 European participating laboratories. The comparison of the results for transformer ratios of (4, 5, 6, 8, 10) kA/5 A at 15 VA burden and (4 and 10) kA/5 A ratios at 5 VA burden indicates good agreement between the participating laboratories. The main differences are found for phase displacement, at least in part due to instability of the traveling standard.
Original language | English |
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Title of host publication | CPEM 2018 - Conference on Precision Electromagnetic Measurements |
Publisher | IEEE Institute of Electrical and Electronic Engineers |
Number of pages | 2 |
ISBN (Electronic) | 978-1-5386-0974-3 , 978-1-5386-0973-6 |
DOIs | |
Publication status | Published - 2018 |
MoE publication type | A4 Article in a conference publication |
Event | Conference on Precision Electromagnetic Measurements, CPEM 2018 - Paris, France Duration: 8 Jul 2018 → 13 Jul 2018 |
Conference
Conference | Conference on Precision Electromagnetic Measurements, CPEM 2018 |
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Abbreviated title | CPEM |
Country/Territory | France |
City | Paris |
Period | 8/07/18 → 13/07/18 |
Keywords
- comparison
- current measurement
- Current ratio
- current transformers (CT)
- high current
- instrument transformers
- phase displacement
- ratio error