Tord Bengtsson

Visar 42 publikationer

2018

Partial discharges at different voltage waveshapes: Comparison between two different acquisition systems

P. Romano, Thomas Hammarström, Tord Bengtsson et al
IEEE Transactions on Dielectrics and Electrical Insulation. Vol. 25 (2), p. 584-593
Artikel i vetenskaplig tidskrift
2017

Partial discharge characteristics in motor insulations under exposure to multi-level inverters

Thomas Hammarström, Tord Bengtsson, Stanislaw Gubanski
2017 IEEE CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENON (CEIDP). Vol. 2017-October, p. 307-310
Paper i proceeding
2015

Loss Current Studies of Partial Discharge Activity

Xiangdong Xu, Tord Bengtsson, Thomas Hammarström et al
IEEE Transactions on Dielectrics and Electrical Insulation. Vol. 22 (1), p. 472-481
Artikel i vetenskaplig tidskrift
2015

Spontaneous Partial Discharge Oscillations Studied by Excess Current

Xiangdong Xu, Tord Bengtsson, Jörgen Blennow et al
2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2015, Ann Arbor, United States, 18-21 October 2015, p. 55-59
Paper i proceeding
2015

Study of Partial Discharge Activity by Excess Current

Xiangdong Xu, Tord Bengtsson, Thomas Hammarström et al
IEEE Transactions on Dielectrics and Electrical Insulation. Vol. 22 (5), p. 3028-3036
Artikel i vetenskaplig tidskrift
2014

Partial Discharges in Motor Wires at PWM Voltages of Different Smoothness

Thomas Hammarström, Tord Bengtsson, Jörgen Blennow et al
Proceedings of 2014 International Symposium on Electrical Insulating Materials (ISEIM 2014), June 1-5, 2014, Niigata City, Japan, p. 184-187
Paper i proceeding
2014

Partial Discharge Behavior of a Newly Developed Enamel Insulation at Various Voltage Rise Times

Tuan Anh Hoang, Thomas Hammarström, Tord Bengtsson et al
Proceedings of 2014 International Symposium on Electrical Insulating Materials (ISEIM 2014), June 1-5, 2014, Niigata City, Japan, p. 241-244
Paper i proceeding
2014

On Excess Current During and After Partial Discharge Activity

Xiangdong Xu, Tord Bengtsson, Jörgen Blennow et al
Conference on Electrical Insulation and Dielectric Phenomena Annual Report - 2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Des Moines, IA, p. 27-30
Paper i proceeding
2013

Stochastic Detection of Partial Discharges

Tord Bengtsson, Elisabeth Lindell, Thomas Hammarström
IEEE Transactions on Dielectrics and Electrical Insulation. Vol. 20 (6), p. 2203-2211
Artikel i vetenskaplig tidskrift
2013

PARTIAL DISCHARGES IN A STATOR UNDER SYNTHEZISED VOLTAGE WAVEFORMS

Thomas Hammarström, Tord Bengtsson, Jörgen Blennow et al
Proceedings of the 18th International Symposium on High Voltage Engineering 2013 (CD-ROM)
Paper i proceeding
2013

Correction of Geometric Influence in Permittivity Determination

Xiangdong Xu, Tord Bengtsson, Jörgen Blennow et al
23rd Nordic Insulation Symposium (NORD-IS 13), June 9-12, Trondheim, Norway, p. 71-74
Paper i proceeding
2013

Enhanced accuracy in dielectric response material characterization by air reference method

Xiangdong Xu, Tord Bengtsson, Jörgen Blennow et al
IEEE Transactions on Dielectrics and Electrical Insulation. Vol. 20 (3), p. 913-321
Artikel i vetenskaplig tidskrift
2013

PD Properties when Varying the Smoothness of Synthesized Waveforms

Thomas Hammarström, Tord Bengtsson, Jörgen Blennow et al
IEEE Transactions on Dielectrics and Electrical Insulation. Vol. 20 (6), p. 2035-2041
Artikel i vetenskaplig tidskrift
2012

Arbitrary Waveform Impedance Spectroscopy used for Accurate Contact-free Dielectric Characterization

Xiangdong Xu, Tord Bengtsson, Jörgen Blennow et al
2012 International Conference on High Voltage Engineering and Application (ICHVE 2012) (Article number6357019), p. 170-173
Paper i proceeding
2011

Noise and Aliasing Aspects in a Multiharmonic-Dielectric-Response-Measurement System

Björn Sonerud, Tord Bengtsson, Jörgen Blennow et al
IEEE Transactions on Instrumentation and Measurement. Vol. 60 (13), p. 3875-3882
Paper i proceeding
2011

Dielectric response measurements during electrical treeing in sub-picofarad samples

Björn Sonerud, Tord Bengtsson, Jörgen Blennow et al
Polymer Testing. Vol. 30 (1), p. 43-49
Artikel i vetenskaplig tidskrift
2011

Resonant PD signal decoupling circuit for rapidly changing voltages

Thomas Hammarström, Tord Bengtsson, Jörgen Blennow et al
22nd Nordic Insulation Symposium (NORDIS 11), June 13-15, Tampere, Finland, p. 149-152
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2011

CHANGES IN PD PROPERTIES WITH DECREASING VOLTAGE RISE

Thomas Hammarström, Tord Bengtsson, Jörgen Blennow et al
The Proceedings of 17th International Symposium on High Voltage Engineering, p. D-013
Paper i proceeding
2011

Harmonic Limited Test Waveform for Fast AWIS Dielectric Studies

Xiangdong Xu, Tord Bengtsson, Jörgen Blennow et al
22nd Nordic Insulation Symposium (NORDIS 11), June 13-15, Tampere, Finland, p. 199-202
Paper i proceeding
2011

Evidence for Changing PD Properties at Short Voltage Rise Times

Thomas Hammarström, Tord Bengtsson, Jörgen Blennow et al
IEEE Transactions on Dielectrics and Electrical Insulation. Vol. 18 (5), p. 1686-1692
Artikel i vetenskaplig tidskrift
2011

Evaluation of a PD Measuring System for Repititive Steep Voltage Waveforms

Elisabeth Lindell, Tord Bengtsson, Jörgen Blennow et al
IEEE Transactions on Dielectrics and Electrical Insulation. Vol. 18 (1), p. 246-255
Artikel i vetenskaplig tidskrift
2010

Off-line and On-line Dielectric Response Measurements for Diagnostics of Paper-oil Insulation

Stanislaw Gubanski, Tord Bengtsson, Jörgen Blennow et al
Proceedings of the 2010 International Conference on Condition Monitoring and Diagnosis, Sep 6-11,2010, Tokyo, Japan. Vol. 1, p. 25-28
Paper i proceeding
2010

Influence of rise time on partial discharge extinction voltage at semi-square voltage waveforms

Elisabeth Lindell, Tord Bengtsson, Jörgen Blennow et al
IEEE Transactions on Dielectrics and Electrical Insulation. Vol. 17 (1), p. 141-148
Artikel i vetenskaplig tidskrift
2010

Continuous monitoring of dielectric properties of LDPE samples during electrical treeing

Björn Sonerud, Jörgen Blennow, Stanislaw Gubanski et al
2010 IEEE International Conference on Solid Dielectrics, 4th - 9th July 2010, Potsdam,Germany, p. 683-686
Paper i proceeding
2009

High voltages with high harmonic content: The influence of dielectric heating

Björn Sonerud, Tord Bengtsson, Jörgen Blennow et al
Proceedings of the 16th International Symposium on High Voltage Engineering
Paper i proceeding
2009

Capacitance Measurements and Tree Length Estimation during Electrical Treeing in Sub-Picofarad Samples

Björn Sonerud, Tord Bengtsson, Jörgen Blennow et al
IEEE Transactions on Dielectrics and Electrical Insulation. Vol. 16 (6), p. 1707-9
Artikel i vetenskaplig tidskrift
2009

Dielectric Heating in Insulating Materials Subjected to Voltage Waveforms with High Harmonic Content

Björn Sonerud, Tord Bengtsson, Jörgen Blennow et al
IEEE Transactions on Dielectrics and Electrical Insulation. Vol. 16 (4), p. 926-933
Artikel i vetenskaplig tidskrift
2009

Measurement and Analysis of Partial Discharge Current during Square Voltage Waveforms

Björn Sonerud, Tord Bengtsson, Jörgen Blennow et al
2009 Annual Report Conference on Electrical Insulation and Dielectric Phenomena
Paper i proceeding
2009

Influence of compressive stress on dielectric properties of polymers

Björn Sonerud, Tord Bengtsson, Jörgen Blennow et al
Proceedings of the 21st Nordic Insulation Symposium (NORD-IS 09), p. 47-50
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2009

Partial Discharge Frequency Dependence in Oil/Paper Test Object at Semi-Square Voltages

Elisabeth Lindell, Tord Bengtsson, Frans Dijkhuizen
Proceedings of the 21st Nordic Insulation Symposium
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2009

Cavity Partial Discharges at Semi-Square voltages of Different Rise Times

Elisabeth Lindell, Tord Bengtsson, Jörgen Blennow et al
Proceedings of the 21st Nordic Insulation Symposium
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2009

Twisted pair sample subjected to square voltages: Measurements of dielectric properties during partial discharges

Björn Sonerud, Tord Bengtsson, Jörgen Blennow et al
Proceedings of the 16th International Symposium on High Voltage Engineering
Paper i proceeding
2008

Dielectric Response Measurements Utilizing Semi-Square Voltage Waveforms

Björn Sonerud, Tord Bengtsson, Jörgen Blennow et al
IEEE Transactions on Dielectrics and Electrical Insulation. Vol. 15 (4), p. 920-926
Artikel i vetenskaplig tidskrift
2008

Study of Partial Discharges at the Positive and Negative Voltage Flanks of Semi-Square Voltages

Elisabeth Lindell, Tord Bengtsson, Jörgen Blennow
Conference Record of the 2008 IEEE International Symposium on Electrical Insulation, 8-11 June 2008, Vancouver, Canada., p. 563-566
Paper i proceeding
2008

Measurement of Partial Discharges at Rapidly Changing Voltages

Elisabeth Lindell, Tord Bengtsson, Jörgen Blennow et al
IEEE Transactions on Dielectrics and Electrical Insulation. Vol. 15 (3), p. 823-831
Artikel i vetenskaplig tidskrift
2007

Method of monitoring losses

Tord Bengtsson, Björn Sonerud, Jörgen Blennow
Patentansökan
2007

Utilizing High Voltage Containing High Frequency Components for Continuous Dielectric Response Measurements during Aging

Björn Sonerud, Tord Bengtsson, Jörgen Blennow et al
Proceedings of the 20th Nordic Insulation Symposium 2007, p. 73-76
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2007

High and Low Voltage Dielectric Response Measurements Utilizing Arbitrarily Shaped Waveforms

Björn Sonerud, Tord Bengtsson, Jörgen Blennow et al
Proceedings of the 15th International Symposium on High Voltage Engineering
Paper i proceeding
2007

Detection of Surface Partial Discharges at Semi-Square Voltages

Elisabeth Lindell, Tord Bengtsson, Jörgen Blennow et al
Proceedings of the 20th Nordic Insulation Symposium, p. 21-24
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2006

Statistical time distribution of partial discharges under semi-square voltages

Elisabeth Lindell, Tord Bengtsson, Jörgen Blennow
Conference record of the 2006 IEEE International symposium on electrical insulation, p. 290-293
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2006

Dielectric response measurements utilizing non-sinusoidal waveforms

Björn Sonerud, Tord Bengtsson, Jörgen Blennow et al
CEIDP 2006 Proceedings, p. 43-46
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2006

Partial discharges measured at semi-square voltages

Elisabeth Lindell, Tord Bengtsson, Jörgen Blennow et al
2006 Annual report conference on electrical insulation and dielectric phenomenon, October 15-18, 2006, Kansas City, USA, p. 631-634
Konferensbidrag (offentliggjort, men ej förlagsutgivet)

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