Title: A Sampling-Based Ratio Bridge for Calibrating Voltage Transformers
Authors: Mohns, Enrico, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 2.3, Elektrische Energiemesstechnik, ORCID: 0000-0001-5098-9396
Roeissle, Günter, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 2.3, Elektrische Energiemesstechnik
Fricke, Sören, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 2.3, Elektrische Energiemesstechnik
Pauling, Florian, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 2.3, Elektrische Energiemesstechnik
Contributors: HostingInstitution: Physikalisch-Technische Bundesanstalt (PTB), ISNI: 0000 0001 2186 1887
Pages:3
Language:en
DOI:10.7795/EMPIR.17NRM01.CA.20190411
Resource Type: Text / Article
Publisher: Physikalisch-Technische Bundesanstalt (PTB)
Rights: Private use is allowed for non-profit purposes only.
Relationships: IsVariantFormOf: DOI 10.1109/CPEM.2018.8501245
Dates: Available: 2019-04-11
Created: 2018-07
File: Download File (application/pdf) 389.87 kB (399227 Bytes)
MD5 Checksum: d924c19fd4bf2c78063231b8c674c3e3
SHA256 Checksum: 0e51d350b88a2f6747a1855f5a64b2b96097bf1b463cf0bd36fdc1b7092e0b1b
Keywords Voltage transformer ; high voltage ; sampling ; precision measurements ; uncertainty
Abstract: This paper describes the setup of a sampling-based ratio bridge for calibrating voltage transformers. The advantage of this ratio method is that voltage transformers with different transformer ratios can be easily compared. Initial measurements of the components of the bridge indicate low systematic errors, negligible voltage dependency and low phase errors around 50 / 60 Hz. This indicates an attainable uncertainty of below 2 ppm for the ratio error and \pmb0.5 μ rad for the phase displacement of voltage transformers.
Citation: E. Mohns, G. Roeissle, S. Fricke and F. Pauling, "A Sampling-Based Ratio Bridge for Calibrating Voltage Transformers," 2018 Conference on Precision Electromagnetic Measurements (CPEM 2018), Paris, 2018 DOI: 10.1109/CPEM.2018.8501245