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 |
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Keywords
- Electromagnetic fields
- Finite element methods
- HVDC transmission
- Voltage dividers
- Voltage measurement
Cite this
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Optimization of field grading for a 1000 KV wide-band voltage divider. / Klüss, Joni; Hällström, Jari; Elg, Alf Peter.
In: Journal of Electrostatics, Vol. 73, 02.2015, p. 140-150.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Optimization of field grading for a 1000 KV wide-band voltage divider
AU - Klüss, Joni
AU - Hällström, Jari
AU - Elg, Alf Peter
PY - 2015/2
Y1 - 2015/2
N2 - 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.
AB - 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.
KW - Electromagnetic fields
KW - Finite element methods
KW - HVDC transmission
KW - Voltage dividers
KW - Voltage measurement
UR - http://www.scopus.com/inward/record.url?scp=84914163767&partnerID=8YFLogxK
U2 - 10.1016/j.elstat.2014.11.005
DO - 10.1016/j.elstat.2014.11.005
M3 - Article
AN - SCOPUS:84914163767
VL - 73
SP - 140
EP - 150
JO - Journal of Electrostatics
JF - Journal of Electrostatics
SN - 0304-3886
ER -