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Abstract
The rising demand for electric energy poses increasing
challenges for the distribution grid. To overcome these
challenges, direct current (DC) transmission will play a
dominant role in the medium voltage (MV) level. On the
one hand, MV alternating current (AC) cable systems can
be converted into MVDC cable systems and, on the other
hand, new MVDC cable systems can be implemented
into the existing grid.
However, MVDC cables with extruded insulation show
special phenomena (e.g. space charges). Due to the
interest in characteristics of this insulation this paper
provides information about the DC conductivity of XLPE
plaque samples during steady thermal and electric stress
and during temperature changes. The plaque samples are
extracted from 12/20 kV MVAC XLPE cables. The DC
conductivities at steady state and during temperature
changes are presented in a temperature range from
25 °C – 90 °C and an electrical stress up to 30 kV/mm.
challenges for the distribution grid. To overcome these
challenges, direct current (DC) transmission will play a
dominant role in the medium voltage (MV) level. On the
one hand, MV alternating current (AC) cable systems can
be converted into MVDC cable systems and, on the other
hand, new MVDC cable systems can be implemented
into the existing grid.
However, MVDC cables with extruded insulation show
special phenomena (e.g. space charges). Due to the
interest in characteristics of this insulation this paper
provides information about the DC conductivity of XLPE
plaque samples during steady thermal and electric stress
and during temperature changes. The plaque samples are
extracted from 12/20 kV MVAC XLPE cables. The DC
conductivities at steady state and during temperature
changes are presented in a temperature range from
25 °C – 90 °C and an electrical stress up to 30 kV/mm.
Original language | English |
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Number of pages | 6 |
Publication status | Published - 14 Jun 2022 |
Event | 27th Nordic Insulation Symposium - Trondheim, Norway Duration: 13 Jun 2022 → 15 Jun 2022 |
Conference
Conference | 27th Nordic Insulation Symposium |
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Country/Territory | Norway |
City | Trondheim |
Period | 13/06/22 → 15/06/22 |
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Dive into the research topics of 'MVAC XLPE Cables for MVDC – DC Conductivity of Plaque Samples During Temperature Changes'. Together they form a unique fingerprint.Activities
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27th Nordic Insulation Symposium
Patrik Alexander Ratheiser (Participant)
13 Jun 2022 → 15 Jun 2022Activity: Participation in or organisation of › Conference or symposium (Participation in/Organisation of)
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MVAC XLPE Cables for MVDC – DC Conductivity of Plaque Samples During Temperature Changes
Patrik Alexander Ratheiser (Speaker)
14 Jun 2022Activity: Talk or presentation › Talk at conference or symposium › Science to science