@incollection{KempkesWolzAckvaetal., author = {Kempkes, Joachim and Wolz, Christoph and Ackva, Ansgar and Sch{\"a}fer, Uwe}, title = {Nichtlineare Berechnung von permanentmagneterregten Gleichstrommotoren mit konzentrierten Wicklungen}, series = {Vortr{\"a}ge der 4. VDE/VDI-Tagung vom 17. bis 18. September 2013 in N{\"u}rtingen}, booktitle = {Vortr{\"a}ge der 4. VDE/VDI-Tagung vom 17. bis 18. September 2013 in N{\"u}rtingen}, publisher = {VDE}, address = {Berlin}, language = {de} } @inproceedings{KuechlerSchoberExneretal., author = {K{\"u}chler, Andreas and Schober, F. and Exner, W. and Krause, Ch. and Berger, Frank}, title = {Influence of Board Density on the Conductivity of Oi-Impregnated Pressboard for HVDC Insulation Systems}, series = {IEEE Electrical Insulation Conference}, booktitle = {IEEE Electrical Insulation Conference}, address = {Seattle, Washington, USA}, pages = {61 -- 64}, language = {en} } @incollection{Kempkes, author = {Kempkes, Joachim}, title = {Elektrische Energieversorgung}, series = {Elektrotechnik und Elektronik f{\"u}r Maschinenbauer, VDI-Buch}, booktitle = {Elektrotechnik und Elektronik f{\"u}r Maschinenbauer, VDI-Buch}, editor = {Hering, E. and Martin, R. and Gutekunst, J. and Kempkes, Joachim}, edition = {2}, publisher = {Springer}, address = {Berlin, Heidelberg}, isbn = {978-3-642-12880-6}, language = {de} } @incollection{Kempkes, author = {Kempkes, Joachim}, title = {Elektrische Maschinen}, series = {Elektrotechnik und Elektronik f{\"u}r Maschinenbauer, VDI-Buch}, booktitle = {Elektrotechnik und Elektronik f{\"u}r Maschinenbauer, VDI-Buch}, editor = {Hering, E. and Martin, R. and Gutekunst, J. and Kempkes, Joachim}, edition = {2}, publisher = {Springer}, address = {Berlin, Heidelberg}, isbn = {ISBN 978-3-642-12880-6}, language = {de} } @incollection{Kempkes, author = {Kempkes, Joachim}, title = {Elektronische Regler}, series = {Elektronik f{\"u}r Ingenieure und Naturwissenschaftler, Springer-Lehrbuch}, booktitle = {Elektronik f{\"u}r Ingenieure und Naturwissenschaftler, Springer-Lehrbuch}, editor = {Hering, E. and Martin, R. and Gutekunst, J.}, edition = {6}, publisher = {Springer}, address = {Berlin, Heidelberg}, isbn = {ISBN 978-3642054983}, language = {de} } @incollection{Kempkes, author = {Kempkes, Joachim}, title = {Antriebstechnik}, series = {Elektrotechnik und Elektronik f{\"u}r Maschinenbauer - VDI Buch}, booktitle = {Elektrotechnik und Elektronik f{\"u}r Maschinenbauer - VDI Buch}, editor = {Hering, E. and Kempkes, Joachim and Martin, R. and Gutekunst, J.}, edition = {2}, publisher = {Springer}, address = {Berlin, Heidelberg}, isbn = {ISBN 978-3-642-12880-6}, language = {de} } @incollection{KuechlerHuellmandelBoehmetal., author = {K{\"u}chler, Andreas and H{\"u}llmandel, F. and B{\"o}hm, K. and Krause, C. and Heinrich, B.}, title = {Dielektrische Eigenschaften von {\"O}l-Board- und {\"O}l-Papier-Isolierungen als Kenngr{\"o}ßen f{\"u}r die Diagnose von Transformatoren und Durchf{\"u}hrungen}, series = {ETG-Fachbericht 104}, booktitle = {ETG-Fachbericht 104}, publisher = {VDE}, address = {Kassel}, language = {de} } @incollection{KuechlerHuellmandelBoehmetal., author = {K{\"u}chler, Andreas and H{\"u}llmandel, F. and B{\"o}hm, K. and Neumann, C. and Koch, N. and Loppach, K. and Krause, C. and Alff, J.J.}, title = {Condition Assessment of Aged Transformer Bushing Insulations}, series = {CIGR{\´E} Session 2006}, booktitle = {CIGR{\´E} Session 2006}, address = {Paris}, language = {en} } @incollection{KuechlerHuellmandelBoehmetal., author = {K{\"u}chler, Andreas and H{\"u}llmandel, F. and B{\"o}hm, K. and Koch, N. and Brupbacher, P. and Krause, C.}, title = {Das dielektrische Verhalten von {\"O}l-Papier-Isolationen}, series = {Int. Conf. „Science in Practice"}, booktitle = {Int. Conf. „Science in Practice"}, address = {Schweinfurt}, language = {de} } @incollection{KuechlerHuellmandelBoehmetal., author = {K{\"u}chler, Andreas and H{\"u}llmandel, F. and B{\"o}hm, K. and Koch, N. and Brupbacher, P. and Krause, C.}, title = {Das dielektrische Verhalten von {\"O}l-Papier-Isolationen unter der Wirkung von Grenzfl{\"a}chen-, Material- und Pr{\"u}fparametern}, series = {ETG-Fachbericht 99}, booktitle = {ETG-Fachbericht 99}, publisher = {VDE}, address = {Hanau}, language = {de} } @incollection{KuechlerHuellmandelHoppeetal., author = {K{\"u}chler, Andreas and H{\"u}llmandel, F. and Hoppe, J. and Krause, C. and Koch, N.}, title = {Transiente Belastungen durch Grenzfl{\"a}chen- und Materialpolarisation in HG{\"U}-Transformatoren}, series = {ETG-Fachbericht 99}, booktitle = {ETG-Fachbericht 99}, publisher = {VDE}, address = {Hanau}, language = {de} } @article{KuechlerGubanskiBlennowetal., author = {K{\"u}chler, Andreas and Gubanski, S.M. and Blennow, J. and Holmgren, B. and Koch, Myriam and Kutzner, R. and Lapworth, J. and Linhjell, D. and Tenbohlen, S. and Werelius, P.}, title = {Dielectric Response Diagnoses for Transformer Windings}, series = {ELECTRA}, journal = {ELECTRA}, number = {249}, pages = {64 -- 71}, language = {en} } @incollection{KuechlerDamsGeibigetal., author = {K{\"u}chler, Andreas and Dams, J. and Geibig, K.-F. and Osmokrovic, P. and Dunz, Th. and Schwab, A.}, title = {Numerical Calculation of Breakdown-Voltages for Triggered Three-electrode Spark Gaps}, series = {4th IEEE Pulse Power Conf.}, booktitle = {4th IEEE Pulse Power Conf.}, address = {Albuquerque, NM USA}, language = {en} } @article{KuechlerSchoberHarreretal., author = {K{\"u}chler, Andreas and Schober, F. and Harrer, S. and Berger, Frank and Liebschner, M. and Krause, Ch. and Exner, W.}, title = {Conductivity of Pressboard for HVDC Insulation Systems}, series = {IJECES International Journal of Electrical and Computer Engineering Systems}, volume = {4}, journal = {IJECES International Journal of Electrical and Computer Engineering Systems}, number = {2}, pages = {1 -- 7}, language = {en} } @article{KuechlerSchoberKrause, author = {K{\"u}chler, Andreas and Schober, F. and Krause, Ch.}, title = {Oil Conductivity}, series = {FHWS Science Journal}, volume = {1}, journal = {FHWS Science Journal}, number = {2}, pages = {59 -- 78}, language = {en} } @incollection{KuechlerDunzDamsetal., author = {K{\"u}chler, Andreas and Dunz, Th. and Dams, J. and Schwab, A.}, title = {Power and Voltage Gain of Pulse-forming Lines with Double-bounce Switching}, series = {4th IEEE Pulse Power Conf.}, booktitle = {4th IEEE Pulse Power Conf.}, address = {Albuquerque NM, USA}, language = {en} } @incollection{KuechlerDamsDunzetal., author = {K{\"u}chler, Andreas and Dams, J. and Dunz, Th. and Schwab, A.}, title = {Combined E- and H-Field Probe for Traveling Wave Analysis in Pulse Power Generators}, series = {5th IEEE Pulse Power Conf.}, booktitle = {5th IEEE Pulse Power Conf.}, address = {Arlington VA, USA}, language = {en} } @incollection{KuechlerDunzDamsetal., author = {K{\"u}chler, Andreas and Dunz, Th. and Dams, J. and Schwab, A.}, title = {Efficient Modeling of Transmission Lines for Traveling Wave Analysis with SCEPTRE}, series = {4th IEEE Pulse Power Conf.}, booktitle = {4th IEEE Pulse Power Conf.}, address = {Albuquerque, NM}, language = {en} } @incollection{KuechlerDamsDunz, author = {K{\"u}chler, Andreas and Dams, J. and Dunz, Th.}, title = {Hochspannungsgeneratoren großer Leistung zur Erzeugung gepulster Teilchenstr{\"o}me}, series = {VDI Seminar Beschleunigertechnik}, booktitle = {VDI Seminar Beschleunigertechnik}, address = {Berlin}, language = {de} } @article{KuechlerHinrichsen, author = {K{\"u}chler, Andreas and Hinrichsen, V.}, title = {Grundlagen der elektrischen Feldsteuerung}, series = {ETG Mitgliederinformationen}, journal = {ETG Mitgliederinformationen}, number = {2}, language = {de} } @article{KuechlerHammer, author = {K{\"u}chler, Andreas and Hammer, F.}, title = {Bew{\"a}hrte Silikonschirmdurchf{\"u}hrungen f{\"u}r erh{\"o}hte Sicherheit und Verschmutzungsfestigkeit}, series = {Elektrizit{\"a}tswirtschaft}, volume = {90}, journal = {Elektrizit{\"a}tswirtschaft}, number = {11}, pages = {604 -- 608}, language = {de} } @article{KuechlerSchwab, author = {K{\"u}chler, Andreas and Schwab, A.}, title = {R{\"a}umlich ausgedehnte Sensoren f{\"u}r transiente elektromagnetische Felder}, series = {Archiv f{\"u}r Elektrotechnik}, volume = {70}, journal = {Archiv f{\"u}r Elektrotechnik}, pages = {341 -- 347}, language = {de} } @article{KuechlerHammer, author = {K{\"u}chler, Andreas and Hammer, F.}, title = {Insulating Systems for HVDC Power Apparatus}, series = {IEEE Transactions on Electrical Insulation}, volume = {27}, journal = {IEEE Transactions on Electrical Insulation}, number = {3}, language = {en} } @article{KuechlerSchwab, author = {K{\"u}chler, Andreas and Schwab, A.}, title = {Zum Begriff der Netzfrequenz bei Netzst{\"o}rungen}, series = {Elektrizit{\"a}tswirtschaft}, volume = {86}, journal = {Elektrizit{\"a}tswirtschaft}, pages = {308 -- 310}, language = {de} } @article{Kuechler, author = {K{\"u}chler, Andreas}, title = {Master Research Program Elektro- und Informationstechnik}, series = {DNH Die Neue Hochschule}, volume = {47}, journal = {DNH Die Neue Hochschule}, number = {3/06}, pages = {12 -- 14}, language = {de} } @article{Kuechler, author = {K{\"u}chler, Andreas}, title = {Induktivit{\"a}t von Hochspannungskondensatoren}, series = {etz Elektrotechnische Zeitschrift}, volume = {109}, journal = {etz Elektrotechnische Zeitschrift}, pages = {1070 -- 1075}, language = {de} } @incollection{Kuechler, author = {K{\"u}chler, Andreas}, title = {Application of HV Test Methods to the Evaluation of LV Motor Insulation Quality}, series = {6th Int. Conf. on Optimization of Electrical and Electronic Equipment}, booktitle = {6th Int. Conf. on Optimization of Electrical and Electronic Equipment}, address = {Brasov, Romania}, language = {en} } @article{KuechlerBedel, author = {K{\"u}chler, Andreas and Bedel, T.}, title = {Dielectric Diagnosis of Water Content in Transformer Insulation Systems}, series = {ETEP European Trans. on El. Power}, volume = {11}, journal = {ETEP European Trans. on El. Power}, number = {1}, publisher = {VDE}, address = {Offenbach}, language = {en} } @incollection{DahindenSchultzKuechler, author = {Dahinden, V. and Schultz, K. and K{\"u}chler, Andreas}, title = {The Function of Solid Insulation in Transformers}, series = {Transform '98}, booktitle = {Transform '98}, address = {M{\"u}nchen}, language = {en} } @article{HartmannEdlerAnhalt, author = {Hartmann, J{\"u}rgen and Edler, F. and Anhalt, Klaus}, title = {Neuartige eutektische Metall-Kohlenstoff-Hochtemperaturfixpunkte f{\"u}r die Thermometrie}, series = {PTB Mitteilungen}, volume = {117}, journal = {PTB Mitteilungen}, number = {3}, pages = {256 -- 260}, language = {de} } @incollection{KuechlerRashwanMcDermidetal., author = {K{\"u}chler, Andreas and Rashwan, M.M. and McDermid, W. and Hammer, F.}, title = {On the Design, Testing and Operating Experience of Composite Dry Bushings in HVDC}, series = {5th Int. Conf. on AC and DC Power Transmission}, booktitle = {5th Int. Conf. on AC and DC Power Transmission}, address = {London}, language = {en} } @incollection{KuechlerHammer, author = {K{\"u}chler, Andreas and Hammer, F.}, title = {Suppression of Surface Discharges and Flashover on Dielectric Surfaces}, number = {8032}, address = {Graz, {\"O}sterreich}, language = {en} } @incollection{KuechlerHammer, author = {K{\"u}chler, Andreas and Hammer, F.}, title = {Insulating Systems for HVDC Power Apparatus}, series = {3rd Int. Conf. on Properties}, booktitle = {3rd Int. Conf. on Properties}, address = {Graz, {\"O}sterreich}, language = {en} } @incollection{KuechlerHammer, author = {K{\"u}chler, Andreas and Hammer, F.}, title = {Application of Dielectric Materials}, address = {Tokyo}, pages = {965 -- 968}, language = {en} } @article{HartmannTaubertMonteetal., author = {Hartmann, J{\"u}rgen and Taubert, Dieter Richard and Monte, C. and Gutschwager, B. and Baltruschat, C. and Hollandt, J{\"o}rg and Kochems, D. and K{\"u}chel, C.}, title = {The Spectral Photon Flux of the Radiometric Calibration Spectral Source for the NIRSpec Instrument of the James Webb Space Telescope}, series = {Metrologia}, journal = {Metrologia}, number = {46}, pages = {207 -- 212}, language = {en} } @article{HartmannThomasHilletal., author = {Hartmann, J{\"u}rgen and Thomas, R. and Hill, K.D. and Steele, A.G. and Ma, C.K.}, title = {Bilateral comparison of the NRC and PTB local realizations of the ITS-90 between the silver point and 1700 °C using vacuum tungsten strip lamps as transfer standards}, series = {Metrologia}, volume = {43}, journal = {Metrologia}, number = {03003}, language = {en} } @article{HartmannFriedrichTaubertetal., author = {Hartmann, J{\"u}rgen and Friedrich, R. and Taubert, Dieter Richard and Hollandt, J{\"o}rg}, title = {Improved calibration of the spectral responsivity of interference filter radiometers in the visible and near infrared spectral range at PTB}, series = {Metrologia}, journal = {Metrologia}, number = {40}, pages = {35 -- 38}, language = {en} } @article{HartmannAnhaltZelenjuketal., author = {Hartmann, J{\"u}rgen and Anhalt, Klaus and Zelenjuk, A. and Taubert, Dieter Richard}, title = {New PTB Set-up for the absolute calibration of the spectral responsivity of radiation thermometers}, series = {International Journal of Thermophysics}, journal = {International Journal of Thermophysics}, number = {30}, pages = {192 -- 202}, language = {en} } @article{HartmannMaGibson, author = {Hartmann, J{\"u}rgen and Ma, C.K. and Gibson, C.}, title = {Decreasing dependence of the calibration of the tungsten strip lamp on the temperature of the lamp base with increasing filament length}, series = {Metrologia}, journal = {Metrologia}, number = {42}, pages = {383 -- 388}, language = {en} } @article{HartmannAnhaltWangetal., author = {Hartmann, J{\"u}rgen and Anhalt, Klaus and Wang, Y. and Yamada, Y.}, title = {Large and small aperture Fixed-point cells of Cu, Pt-C, and Re-C}, series = {International Journal of Thermophysics}, journal = {International Journal of Thermophysics}, number = {29}, pages = {969 -- 983}, language = {en} } @article{HartmannWerner, author = {Hartmann, J{\"u}rgen and Werner, L.}, title = {Radiation thermometry towards the triple point of water?}, series = {International Journal of Thermophysics}, journal = {International Journal of Thermophysics}, number = {29}, pages = {1052 -- 1065}, language = {en} } @article{Hartmann, author = {Hartmann, J{\"u}rgen}, title = {Correct consideration of the index of refraction using blackbody radiation}, series = {Optics Express}, volume = {14}, journal = {Optics Express}, number = {18}, pages = {8121 -- 8126}, language = {en} } @article{Hartmann, author = {Hartmann, J{\"u}rgen}, title = {Advanced comparator method for measuring ultra small aperture areas}, series = {Meas.Sci.Techn.}, journal = {Meas.Sci.Techn.}, number = {12}, pages = {1678 -- 1682}, language = {en} } @inproceedings{WirthReumannKuechleretal., author = {Wirth, Isabell and Reumann, Andreas and K{\"u}chler, Andreas and Schnitzler, Tim and Langens, Achim and Berger, Frank and Zink, Markus H.}, title = {Steady-state and Transient Electrical Potential Distribution in HVDC Bushings Measured under Different Thermal Conditions}, series = {19th International Symposium on High Voltage Engineering}, booktitle = {19th International Symposium on High Voltage Engineering}, address = {Pilsen, Czech Republic}, language = {en} } @book{Zink, author = {Zink, Markus H.}, title = {Zustandsbewertung betriebsgealterter Hochspannungstransformatordurchf{\"u}hrungen mit {\"O}l-Papier-Dielektrikum mittels dielektrischer Diagnose}, publisher = {Universit{\"a}tsverlag Ilmenau}, address = {Ilmenau}, language = {de} } @article{HartmannLoweAnhalt, author = {Hartmann, J{\"u}rgen and Lowe, D. and Anhalt, Klaus}, title = {Construction and validation of a platinum-carbon eutectic fixed-point}, series = {Metrologia}, journal = {Metrologia}, number = {45}, pages = {325 -- 329}, language = {en} } @article{ZinkKuechlerBerger, author = {Zink, Markus H. and K{\"u}chler, Andreas and Berger, Frank}, title = {Kompensation des Temperatureinflusses auf dielektrische Messungen im Zeitbereich zur Beschreibung von Isolierwerkstoffen}, series = {ETG-Fachtagung „Grenzfl{\"a}chen in elektrischen Isoliersystemen"}, journal = {ETG-Fachtagung „Grenzfl{\"a}chen in elektrischen Isoliersystemen"}, address = {Dresden}, language = {de} } @book{Zink, author = {Zink, Markus H.}, title = {Kerntechnik}, publisher = {Vogel Fachbuchverlag}, language = {de} } @book{Zink, author = {Zink, Markus H.}, title = {Kerntechnik}, publisher = {Vogel Fachbuchverlag}, language = {de} } @inproceedings{WirthSturmKuechleretal., author = {Wirth, Isabell and Sturm, Sebastian and K{\"u}chler, Andreas and Zink, Markus H. and Berger, Frank and Schnitzler, Tim}, title = {Ber{\"u}cksichtigung von Leitungs- und Polarisationsmechanismen in transienten FEM-Simulationen von HG{\"U}-Isoliersystemen}, series = {VDE-Hochspannungstechnik 2018, Berlin}, booktitle = {VDE-Hochspannungstechnik 2018, Berlin}, abstract = {The calculation of electrical field distributions in insulation systems for high voltage direct current (HVDC) transmission using the finite element method (FEM) usually only considers the dielectric properties in the form of permittivities and conductivities. Due to not sufficiently well simulated transient processes, state of the art is considering the polarization processes by equivalent network models. The application and implementation of polarization mechanisms in a FEM soft- ware closes this gap and allows calculating the electric field distribution more precisely. An implementation of additional differential equations, according to the RC-network model, describing the field dependent polarization mechanisms, are complementing the displacement and conduction current. Material equations and their parameters are determined by measuring the polarization and depolarization currents (PDC). These equations are necessary for both the RC-network models and the differential equations for the FEM. They can be adapted to the actual temperatures in the insulation system. Hence, the necessarily multidimensional electric field calculations of complex insulation systems with stationary or transient temperature-gradients are possible. The described calculation method is verified by reactionless fieldmill voltmeter measurements of transient voltage profiles at the grading foils of modified high voltage DC-bushings. A better accuracy is achieved for the simulation of transient and stationary potential distributions.}, language = {de} } @inproceedings{KochHohlochWirthetal., author = {Koch, Myriam and Hohloch, Jens and Wirth, Isabell and Sturm, Sebastian and Zink, Markus H. and K{\"u}chler, Andreas}, title = {Experimental and simulative analysis of the thermal behavior of high voltage cable joints}, series = {VDE-Hochspannungstechnik 2018, Berlin}, booktitle = {VDE-Hochspannungstechnik 2018, Berlin}, abstract = {Nowadays, cable systems are often preferred when deciding on the type of new transmission lines even in the high and extra high voltage range. One of the main reasons is the better public acceptance. In addition, the power to be transmitted in the grid is increasing leading to increased ohmic losses and thus, to higher thermal stress on the materials. The investigations in this contribution focus on cable joints, which represent important and decisive components of cable systems. In order to optimize the design and to ensure reliable operation over the entire service life, the temperature profile within these components is of special interest. For their detailed investigation, a test circuit was set up consisting of a cable section and sections with build-up stages of a cable joint. A large number of measuring points were defined also at points where no measurement is possible in normal operation. With a thermographic camera the surface temperature distributions were observed. With the laboratory setup temperature profiles under various load conditions were recorded. A detailed FEM model was built and verified with help of these measurements. The model permits the investigation of specific questions of cable systems such as the comparison of temperature loads resulting from normal operating conditions and of test procedures according to the relevant standards. Besides others the effect of stressing the insulation and sealing system by heating the inner conductor vs. heating from outside by surrounding water is discussed.}, language = {en} }