This paper presents the characterization of a resistive high-voltage dc (HVDC) reference divider and methods to establish traceability. The divider is designed for use as a laboratory reference for calibration of HVDC measuring systems up to 1000 kV. Targeting a measurement uncertainty of 20 µV/V at full voltage has put a focus on the temperature coefficients of the resistors, elimination of humidity dependence, and control of leakage currents in the high-voltage arm. A scale factor calibration against a 50 kV divider at 10 kV leads to an expanded uncertainty of 15 µV/VV/V.
|Journal||IEEE Transactions on Instrumentation and Measurement|
|Publication status||Published - 2015|
|MoE publication type||A1 Journal article-refereed|
- High-voltage dc (HVDC) transmission
- high-voltage techniques
- measurement standards
- voltage dividers