Abstract
An HVDC reference voltage divider has been designed for high accuracy and wide-band measurements up to 1000kV. To maintain wide-band characteristics, field distribution must be optimized in order to minimize the response time of the divider. To compensate the stray capacitance, a capacitive path that surrounds the resistive reference divider is added to function as a shield. Optimal capacitance values producing a matched distribution are obtained using 3D FEM simulations. Factors affecting the performance of the divider are assessed by simulating multiple scenarios representing different practical considerations in real-life applications.
| Original language | English |
|---|---|
| Pages (from-to) | 140-150 |
| Number of pages | 11 |
| Journal | Journal of Electrostatics |
| Volume | 73 |
| DOIs | |
| Publication status | Published - Feb 2015 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- Electromagnetic fields
- Finite element methods
- HVDC transmission
- Voltage dividers
- Voltage measurement
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Klüss, J., Hällström, J., & Elg, A. P. (2015). Optimization of field grading for a 1000 KV wide-band voltage divider. Journal of Electrostatics, 73, 140-150. https://doi.org/10.1016/j.elstat.2014.11.005