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CCEM-K14

Metrology area, Sub-field	Electricity and Magnetism, High voltage and current
Description	AC ratio and phase displacement on voltages up to 100 kV on power frequency
Time of measurements	2026 - 2028
Status	Protocol complete

Measurand	Ratio error ε in % Phase displacement Δφ in μrad Nominal ratios 200:1 and 1000:1
Parameters	Input voltage: 20 %, 40 %, 60 %, 80 %, 100 %, and 120 % of nominal input voltage Frequency: 53 Hz or local power frequency Burden: 0 VA and 2.5 VA (resistive)
Transfer device	Two voltage transformers, nominal voltages 20 kV and 100 kV

Comparison type	Key Comparison
Consultative Committee	CCEM (Consultative Committee for Electricity and Magnetism)
Conducted by	CCEM (Consultative Committee for Electricity and Magnetism)
Pilot institute	MIKES VTT Technical Research Centre of Finland Ltd, Centre for Metrology/Mittatekniikan keskus Finland
Contact person	Jari Hällström +358 50 382 2127

Pilot laboratory
MIKES	VTT Technical Research Centre of Finland Ltd, Centre for Metrology/Mittatekniikan keskus, Finland, EURAMET

CMS	ITRI Center for Measurement Standards, Chinese Taipei, APMP

INMETRO

Instituto Nacional de Metrologia, Qualidade e Tecnologia, Brazil, SIM

INTI	Instituto Nacional de Tecnologia Industrial, Argentina, SIM

KRISS

Korea Research Institute of Standards and Science, Korea, Republic of, APMP

NIM	National Institute of Metrology, China, APMP

NMIA	National Measurement Institute, Australia, Australia, APMP

NRC	National Research Council, Canada, SIM

PTB	Physikalisch-Technische Bundesanstalt, Germany, EURAMET

RISE	Research Institutes of Sweden AB, Sweden, EURAMET

SASO-NMCC

National Measurement and Calibration Center - Saudi Standards, Metrology and Quality Organization, Saudi Arabia, GULFMET

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