Blar i NTNU Open på forfatter "Mauseth, Frank"
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A stochastic model for contact surfaces at polymer interfaces subjected to an electrical field
Kantar, Emre; Hvidsten, Sverre; Mauseth, Frank; Ildstad, Erling (Journal article; Peer reviewed, 2018)Morphology of the contact area between solid insulation materials ultimately determines the short- and long-term electrical properties of the complete insulation system. The main purpose of this paper is to propose a ... -
AC-tap i MgB2-superleder: Effekt av simulert slaglende
Lindau, Sandra Madeleine (Master thesis, 2013)Superconductive materials can conduct DC currents without energy losses when cooled down below their critical temperature. However, under AC conditions, energy losses appear in the superconductor. In 2001 the new and ... -
Ageing of Technical Air and Technical Air with 7.5% C5-Fluoroketone by Free-Burning Arcs
Subhana, Arik; Støa-Aanensen, Nina Sasaki; Gammelsæter, Marte; Jonsson, Erik; Mauseth, Frank (Journal article; Peer reviewed, 2023)This paper reports on the effect of ageing by free-burning arcs in 7.5% C5-fluoroketone (C5-FK) with 92.5% technical air in comparison to that in technical air (80% N2, 20% O2) at 1.3bar absolute pressure. The gases are ... -
Aldring av PEX-isolasjon ved påtrykk av HVDC med overlagrede transienter
Amundsen, Martin (Master thesis, 2012)Produksjon av elektrisk kraft fra offshore vindturbiner vil bli en stor utfordring i nær fremtid. Forskningsrådet har i den forbindelse tildelt SINTEF et femårig forskningsprosjekt på HVAC og HVDC undervannskabler for ... -
Automated Railway Single-Line Diagram Generation Using RDS (ISO/IEC 81346)
Hellebust, Haakon; Klevan, Sondre; Salihzada, Nima (Bachelor thesis, 2024)Denne oppgaven utforsker opprettelsen av et automatisert system for å generere enlinjeskjemaer for jernbane ved hjelp av referansebetegnelsessystemet (RDS) i henhold til ISO/IEC 81346-standardene. Prosjektet har som mål å ... -
Breakdown at Multiple Protrusions and Surface Roughness in SF6 and CO2 - A Study of the Enlargement Law
Feet, Odd Christian (Master thesis, 2018)Gas insulated components are important in the modern transmission system. The most common gas used in high pressure insulation is Sulphur Hexafluoride (SF6). SF6 has beenclassified as a greenhouse gas and a potential ... -
Breakdown at Multiple Protrusions in SF6 and CO2
Feet, Odd Christian; Seeger, Martin; Over, Daniel; Niayesh, Kaveh; Mauseth, Frank (Peer reviewed; Journal article, 2020)The electric breakdown at single and multiple protrusions in SF6 and CO2 is investigated at 0.4 and 0.6 MPa, respectively. Additionally, the breakdown fields at rough surfaces of two different areas were determined. From ... -
Breakdown in short rod-plane air gaps under positive lightning impulse stress
Hygen Meyer, Hans Kristian; Mauseth, Frank; Pedersen, Per Atle; Martine, Husøy (Journal article; Peer reviewed, 2017)Prediction of withstand voltages in air-insulated systems are made on the basis of empirical models that are not sufficiently accurate for complex geometries. Bet-ter understanding of the spatio temporal ... -
Breakdown Mechanisms of Rod-Plane Air Gaps with a Dielectric Barrier Subject to Lightning Impulse Stress
Meyer, Hans Kristian Hygen; Mauseth, Frank; Pedersen, Per Atle; Ekeberg, Jonas (Journal article; Peer reviewed, 2018)The complexity of gas-insulated substations makes it difficult to predict withstand voltages. Modeling interaction between dielectric surfaces and electrical discharges is a key challenge. In this study, 60 mm rod-plane ... -
Breakdown strength of oil-impregnated paper insulation at DC with superimposed lightning impulse voltage
Birkeland, Andreas (Master thesis, 2021)Før HVDC-kabler med isolasjonssystemer bestående av oljeimpregnert papir installeres utføres fabrikasjonstester, hvorav en av de viktigste prøvene går ut på å påføre DC spenning med overlagret lynimpuls. Denne prøven består ... -
Breakdown Voltage of Polymeric HVDC Insulation at DC Stress and Superimposed Lightning Impulse Voltages
Ildstad, Erling; Mauseth, Frank; Olsen, Espen Torlei (Peer reviewed; Journal article, 2022)Space charge formation makes it difficult to predict the resulting electric field distribution within HVDC cable insulation. The main purpose of the work presented here has been to experimentally study how the lightning ... -
Characterization of Insulation Materials for HVDC Subsea Connectors - Evaluation of Measurement Methods for Surface Conductivity
Jacobsen, Brynjar Aalberg (Master thesis, 2015)The focus of this work has been on characterization methods for the surface conductivity of insulation materials in HVDC subsea connectors. Having a proper characterization is important when selecting the most suited design ... -
Charge accumulation in rod-plane air gap with covered rod
Mauseth, Frank (Doktoravhandlinger ved NTNU, 1503-8181; 2006:239, Doctoral thesis, 2007)The focus of this work has been on hybrid insulation in inhomogeneous electric fields under lightning impulse voltage stress. The principal idea behind hybrid insulation is the intentional use of surface charges to ... -
Charge accumulation on slightly conductive barrier systems and its effect on breakdown voltage in an air insulated rod plane arrangement
Schueller, M.; Blaszczyk, Andreas; Mauseth, Frank; Meyer, Hans Kristian Hygen; Stieger, N.; Smajic, J. (Chapter, 2020)The barrier effect has been known since the 1930's. It is of great importance in the field of high voltage engineering as the breakdown voltage of an electrode arrangement can be increased significantly when dielectric ... -
Condition Assessment of Medium Voltage Cable Accessories - PD Measurements at Variable Frequencies
Einan, Gunnar Stokke (Master thesis, 2016)Diagnostic PD testing of medium voltage cables can be performed at very low frequencies (VLF, 0.1 Hz), to reduce capacitive currents. At 0.1 Hz the field distribution in the field grading materials is likely different from ... -
Condition Assessment of Medium Voltage Cable Joints - Dielectric Spectroscopy of Field Grading Materials
Abil, Biran (Master thesis, 2017)The electrical properties of a widely used stress control tube for medium voltage heat-shrink joints are examined in this master thesis by using non-destructive laboratory methods. They were determined by use of time domain ... -
Condition Assessment of Medium Voltage Cable Joints - Dielectric Spectroscopy of field grading materials
Sanden, Mai-Linn (Master thesis, 2015)This thesis examines the electrical properties of a commonly used stress control tube for medium voltage heat-shrink joints using non-destructive methods in laboratory. The electrical properties of the tube were determined ... -
Condition Assessment of Service Aged Medium Voltage Cable Joints During Load Cycling
Bjurholt, Ingeborg (Master thesis, 2018)In order to be able to take maximum advantage of the remaining lifetime of the components in the distribution network, utilities need to know the condition of the equipment as accurately as possible. When partial discharges ... -
Condition Assessment of Wind Farm Medium Voltage Cable Joints
Halvorson, Hans Lavoll (Master thesis, 2012)Rapid aging and failure in wind-farm collector systems has become an issue for grid owners. PD measurements of the cable systems can give good diagnostics, detect aging and pinpoint faults. Different PD measuring techniques ... -
Condition Monitoring of Subsea Connectors - Partial Discharge Detection Using a High Frequency Sensor
Myklatun, Jon Thore (Master thesis, 2014)This thesis discusses possible causes of failure and potential condition indicators that may be used to monitor the condition of the insulation system of a subsea connector. The main focus is to describe how high frequency ...