Title :
Setting up of a primary power standard at the Standards and Calibration Laboratory (SCL)
Author :
Poon, Johnny C Y ; Yan, Aaron Y K ; Sin, W.K. ; Lee, Dennis W K ; Lam, H.S.
Author_Institution :
Stand. & Calibration Lab., Wanchai, China
Abstract :
The Standards and Calibration Laboratory (SCL) of Hong Kong has developed a primary standard of power based on sampling principle. The primary standard is used to provide calibration service for precision power meters. The measurement uncertainty is 55 × 10-6 for voltage from 24 to 480 V and current from 0.005 to 160 A and power factor from unity to 0 leading or lagging.
Keywords :
calibration; measurement standards; power meters; voltage measurement; Hong Kong; SCL; Standards and Calibration Laboratory; current 0.005 A to 160 A; measurement uncertainty; power factor; precision power meter; primary power standard; sampling principle; voltage 24 V to 480 V; Current measurement; Current transformers; Measurement uncertainty; Power measurement; Reactive power; Standards; Voltage measurement; Precision power measurements (active, reactive, apparent); impedance; phase angle; power factor; sampling principle;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2012 Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4673-0439-9
DOI :
10.1109/CPEM.2012.6250691
