Precision Characterisation of Current Transformers and Shunts in the Audio Frequency Range
| Autor: | Louis Marais, Ilya Budovsky, Laurens Willems van Beveren |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Computer science
Amplifier 020208 electrical & electronic engineering 02 engineering and technology Current transformer law.invention Ac current law 0202 electrical engineering electronic engineering information engineering Electronic engineering Measurement uncertainty Current (fluid) Resistor Impedance variation Audio frequency |
| Zdroj: | 2018 Conference on Precision Electromagnetic Measurements (CPEM 2018). |
| DOI: | 10.1109/cpem.2018.8501022 |
| Popis: | This paper presents a technique to compare two current transformers, or a current transformer and ac current shunts, with an uncertainty better than 1 uA/A and 1 urad at audio frequencies. Examples of such a comparison at frequencies from 10Hz to 10kHz are given. Due to its low uncertainty, the described technique made it possible to accurately measure critical parameters such as common-mode dependence of a current transformer and impedance variation of current shunts with ac current applied. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|