Traceability and Characterization of a 1000 kV HVDC Reference Divider

• 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/V.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Nyckelord

High-voltage dc (HVDC) transmission

high-voltage techniques

measurement standards

uncertainty

voltage dividers

Calibration

Humidity control

HVDC power transmission

Leakage currents

Uncertainty analysis

High voltage DC (HVDC)

High voltage dc (HVDC) transmissions

High voltage techniques

Measurement uncertainty

Measuring systems

Temperature coefficient

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)