Abstract
High voltage equipment is subjected to several types of electrical stress during operation, why testing by transient wave shapes is routinely performed. Measurement systems are being developed by National Metrology Institutes (NMI) for traceable calibration of sensors used in Gas Insulated Switchgear (GIS) where front times below 10 ns are common. We refer to front times below this as Very Fast Transients (VFT). This paper presents advantages and disadvantages of various divider designs to be used for VFT measurement systems. Many of these are a heritage from lightning impulse measurement systems. Several divider designs are studied to investigate the contribution on uncertainties in both amplitude and time parameters in a measurement system. Four resistive designs based on ceramic bulk resistors, bifilar wire winding, a resistive liquid and thick film SMD resistors have been characterized and compared with a small damped capacitive divider. Step response measurements have been used to characterize several dividers in different geometrical configurations, looking at the transient response out of a wave propagation point of view with analysis of loop sizes, field distributions and proximity effects. The findings are that and minimizing skin effects and inductance in the dividers are essential for a fast response and settling. Convolution of the step responses with ideal reference curves showed that more development is needed to eliminate oscillations in the step response. Further improvement of the geometries and impedance matching is needed to achieve acceptable errors for VFT with front times T1 below 10 ns.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 21st International Symposium on High Voltage Engineering |
| Subtitle of host publication | ISH 2019 |
| Editors | Bálint Németh |
| Publisher | Springer |
| Pages | 1316-1327 |
| Number of pages | 12 |
| Volume | 1 |
| ISBN (Electronic) | 978-3-030-31676-1 |
| ISBN (Print) | 978-3-030-31675-4 |
| DOIs | |
| Publication status | Published - 1 Jan 2020 |
| MoE publication type | A4 Article in a conference publication |
| Event | 21st International Symposium on High Voltage Engineering, ISH 2019 - Budapest, Hungary Duration: 26 Aug 2019 → 30 Aug 2019 |
Publication series
| Series | Lecture Notes in Electrical Engineering |
|---|---|
| Volume | 598 LNEE |
| ISSN | 1876-1100 |
Conference
| Conference | 21st International Symposium on High Voltage Engineering, ISH 2019 |
|---|---|
| Abbreviated title | ISH 2019 |
| Country | Hungary |
| City | Budapest |
| Period | 26/08/19 → 30/08/19 |
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Keywords
- Fast transients
- High voltage divider
- High voltage impulse
Cite this
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High Voltage Topologies for Very Fast Transient Measurements. / Elg, A. P. (Corresponding author); Passon, S.; Meisner, J.; Hällström, J.
Proceedings of the 21st International Symposium on High Voltage Engineering: ISH 2019. ed. / Bálint Németh. Vol. 1 Springer, 2020. p. 1316-1327 (Lecture Notes in Electrical Engineering, Vol. 598 LNEE).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
TY - GEN
T1 - High Voltage Topologies for Very Fast Transient Measurements
AU - Elg, A. P.
AU - Passon, S.
AU - Meisner, J.
AU - Hällström, J.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - High voltage equipment is subjected to several types of electrical stress during operation, why testing by transient wave shapes is routinely performed. Measurement systems are being developed by National Metrology Institutes (NMI) for traceable calibration of sensors used in Gas Insulated Switchgear (GIS) where front times below 10 ns are common. We refer to front times below this as Very Fast Transients (VFT). This paper presents advantages and disadvantages of various divider designs to be used for VFT measurement systems. Many of these are a heritage from lightning impulse measurement systems. Several divider designs are studied to investigate the contribution on uncertainties in both amplitude and time parameters in a measurement system. Four resistive designs based on ceramic bulk resistors, bifilar wire winding, a resistive liquid and thick film SMD resistors have been characterized and compared with a small damped capacitive divider. Step response measurements have been used to characterize several dividers in different geometrical configurations, looking at the transient response out of a wave propagation point of view with analysis of loop sizes, field distributions and proximity effects. The findings are that and minimizing skin effects and inductance in the dividers are essential for a fast response and settling. Convolution of the step responses with ideal reference curves showed that more development is needed to eliminate oscillations in the step response. Further improvement of the geometries and impedance matching is needed to achieve acceptable errors for VFT with front times T1 below 10 ns.
AB - High voltage equipment is subjected to several types of electrical stress during operation, why testing by transient wave shapes is routinely performed. Measurement systems are being developed by National Metrology Institutes (NMI) for traceable calibration of sensors used in Gas Insulated Switchgear (GIS) where front times below 10 ns are common. We refer to front times below this as Very Fast Transients (VFT). This paper presents advantages and disadvantages of various divider designs to be used for VFT measurement systems. Many of these are a heritage from lightning impulse measurement systems. Several divider designs are studied to investigate the contribution on uncertainties in both amplitude and time parameters in a measurement system. Four resistive designs based on ceramic bulk resistors, bifilar wire winding, a resistive liquid and thick film SMD resistors have been characterized and compared with a small damped capacitive divider. Step response measurements have been used to characterize several dividers in different geometrical configurations, looking at the transient response out of a wave propagation point of view with analysis of loop sizes, field distributions and proximity effects. The findings are that and minimizing skin effects and inductance in the dividers are essential for a fast response and settling. Convolution of the step responses with ideal reference curves showed that more development is needed to eliminate oscillations in the step response. Further improvement of the geometries and impedance matching is needed to achieve acceptable errors for VFT with front times T1 below 10 ns.
KW - Fast transients
KW - High voltage divider
KW - High voltage impulse
UR - http://www.scopus.com/inward/record.url?scp=85076858094&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-31676-1_123
DO - 10.1007/978-3-030-31676-1_123
M3 - Conference article in proceedings
AN - SCOPUS:85076858094
SN - 978-3-030-31675-4
VL - 1
T3 - Lecture Notes in Electrical Engineering
SP - 1316
EP - 1327
BT - Proceedings of the 21st International Symposium on High Voltage Engineering
A2 - Németh, Bálint
PB - Springer
ER -