New concept of PTBs standard divider for direct voltages of up to 100 kV

Author

Marx, Rainer

Author_Institution

Phys. Tech. Bundesanstalt, Braunschweig, Germany

Volume

50

Issue

2

fYear

2001

fDate

4/1/2001 12:00:00 AM

Firstpage

426

Lastpage

429

Abstract

A shielded high-voltage divider equipped with a temperature control system has been developed for the precise measurement of direct voltages of up to 100 kV. The measuring divider consists of 101 wire-wound resistors with a total resistance of about 1 GΩ and has been set up in a metal vessel under compressed sulphur hexafluoride (SF ₆). The measuring divider is mounted in an electrode arrangement that provides a homogeneous electrical field; temperature control is ensured by Peltier elements. The nominal scale factors are 100:1 and 10000:1. The experimental investigation of all resistors and influence quantities as well as the shielded construction and the temperature control system have allowed a relative uncertainty of 2×10^-6 (k=2) to be achieved

Keywords

SF₆ insulation; high-voltage techniques; measurement standards; resistors; shielding; temperature control; voltage dividers; voltage measurement; 1 Gohm; 100 kV; Peltier elements; compressed sulphur hexafluoride; direct voltages; electrode arrangement; homogeneous electrical field; measurement uncertainty; measuring divider; microprocessor controller; nominal scale factors; precise measurement; relative uncertainty; shielded high-voltage divider; split metal vessel; standard divider; temperature control system; wire-wound resistors; Current measurement; Electric resistance; Electric variables measurement; Electrical resistance measurement; Electrodes; Gas insulation; Humidity measurement; Resistors; Temperature control; Voltage;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.918158

Filename

918158