Linking results of key and supplementary comparisons of regional metrology organization for electrical power

Velychko, Oleh; Karpenko, Stanislav

doi:10.1051/ijmqe/2016014

Cited by 6 publications

(5 citation statements)

References 5 publications

(7 reference statements)

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“…UMTS was a pilot laboratory responsible for providing the TS, coordinating the schedule, collecting and analysing the comparison data, and preparing the draft report, etc. NIM (China) and VNIIM (Russia) was linking NMIs for the linking process between CCEM-K5 KC and COOMET.EM-K5 KC due to participating in CCEM-K5 [13,14]. Relevance of the comparison results are expected at the level better than 0.005 %.…”

Section: Participants Of Coometem-k5 Key Comparison Of Powermentioning

confidence: 97%

“…It was decided to perform the comparison at 120 V, 5 A, 50 Hz and 53 Hz, power factors 1, 0.5 Lead/Lag in order to be in line with EURAMET.EM-K5.1 KC. The procedure was proposed for linking results of EURAMET.EM-K5.1 KC and COOMET.EM-S2 SC to those NMIs which have also taken part in both comparisons [13].…”

Section: Brief Review Of Performed Key Comparisons Of Powermentioning

confidence: 99%

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Main Results of COOMET.EM-K5 Key Comparison of Power

Velychko¹,

Karpenko²

2019

Ukrainian Metrological Journal

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the linking process between CCEM-K5 Key Comparison and COOMET.EM-K5 Key Comparison due of participating in CCEM-K5 Key Comparison. The paper is devoted to the discussion of issues concerning the participation and further evaluation of measurement data of COOMET.EM-K5 Key Comparison of Power. Main results of participating laboratories measuring the same power of travelling standard of low-frequency 50/60 Hz power in a framework of COOMET.EM-K5 Key Comparison of Power are presented. Besides, the paper describes some problems concerning the evaluation of travelling standard drift effect and its further influence on evaluation of Key Comparison Reference Value during a Key Comparison. Degrees of Equivalence and Expanded Uncertainties of National Metrology Institutes participants are set. In addition, E n number was calculated for each National Metrology Institute participating in COOMET.EM-K5 Key Comparison of Power with the aim of determining data consistency.

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Section: Participants Of Coometem-k5 Key Comparison Of Powermentioning

confidence: 97%

Section: Brief Review Of Performed Key Comparisons Of Powermentioning

confidence: 99%

Main Results of COOMET.EM-K5 Key Comparison of Power

Velychko¹,

Karpenko²

2019

Ukrainian Metrological Journal

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“…CCEM-K4 and COOMET.EM-K4 data for linking NMIs, μF/F. [26]; results of COOMET.EM-S1 comparison have been linked to COOMET.EM-K6.a comparison of AC/DC voltage transfer difference [27] (RMO SC to RMO KC for similar values of physical quantities). When linking results of those comparisons, the described linking procedure was used.…”

Section: Linking Procedures For International Comparisonsmentioning

confidence: 99%

Metrological Traceability at Different Measurement Levels

Velychko¹,

Gordiyenko²

2019

Standards, Methods and Solutions of Metrology

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The international agreements are the basis for establishing the global metrological traceability at different measurement levels. The concepts and concept relations around metrological traceability are presented. An important element of providing the metrological traceability is the evaluation of measurement uncertainty. The procedure of linking of key and supplementary comparison results is described. Linking of key and supplementary comparison results of the Regional Metrology Organization for some quantities according to the described procedure was presented. Results for all participants of presented key and supplementary comparisons are satisfactory for chi-square test and E n number. The procedure of linking of key or supplementary comparison and national inter-laboratory comparison results is described. This procedure can be used for practical evaluation of specific interlaboratory comparison results on a national level in different countries by means of laboratory results of the National Metrology Institute and Designated Institute. This procedure can contribute the mutual recognition of measurement and testing results by different countries. Linking of key comparison and inter-laboratory comparison results for some quantities according to the described procedure was presented. Results for all participants of presented key comparison and interlaboratory comparison are satisfactory for chi-square test, E n number, z scores and ζ scores.

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“…As an example, results of NMI participants for PF = 1.0, and 50 Hz are illustrated on Figure 5. For the first time the procedure was proposed for linking the results of KC EURAMET.EM-K5.1 and SC COOMET.EM-S2 to those national metrology institutes which have also taken part in both comparisons [15].…”

Section: Supplementary Comparison Of Power Coometem-s2mentioning

confidence: 99%

Traceability Features of the Electric Power Unit in Ukraine

Velychko¹,

Karpenko²

2019

19th International Congress of Metrology (CIM2019)

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The paper describes some aspects concerning the realization of the electric power unit traceability in Ukraine in the CIPM MRA understanding through participation in Key and Supplementary Comparisons of national standards and in the ILAC MRA understanding through participation in inter-laboratory comparisons. The authors have demonstrated comparative analysis of EURAMET.EM-K5.1, COOMET.EM-S2, COOMET.EM-K5 comparisons results and practically realized the procedure for realisation traceability of the electric power unit in Ukraine.

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Linking results of key and supplementary comparisons of regional metrology organization for electrical power

Cited by 6 publications

References 5 publications

Main Results of COOMET.EM-K5 Key Comparison of Power

Main Results of COOMET.EM-K5 Key Comparison of Power

Metrological Traceability at Different Measurement Levels

Traceability Features of the Electric Power Unit in Ukraine

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