| Frequency response of oil impregnated pressboard and paper samples for estimating moisture in transformer insulation C Ekanayake, SM Gubanski, A Graczkowski, K Walczak IEEE Transactions on Power Delivery 21 (3), 1309-1317, 2006 | 323 | 2006 |
| Field experiences with measurements of dielectric response in frequency domain for power transformer diagnostics J Blennow, C Ekanayake, K Walczak, B Garcia, SM Gubanski IEEE transactions on Power Delivery 21 (2), 681-688, 2006 | 165 | 2006 |
| Moisture in cellulose insulation of power transformers-statistics J Gielniak, A Graczkowski, H Moranda, P Przybylek, K Walczak, ... IEEE Transactions on Dielectrics and Electrical Insulation 20 (3), 982-987, 2013 | 60 | 2013 |
| Moisture migration in an oil-paper insulation system in relation to online partial discharge monitoring of power transformers W Sikorski, K Walczak, P Przybylek Energies 9 (12), 1082, 2016 | 44 | 2016 |
| On-Line partial discharge monitoring system for power transformers based on the simultaneous detection of high frequency, ultra-high frequency, and acoustic emission signals W Sikorski, K Walczak, W Gil, C Szymczak Energies 13 (12), 3271, 2020 | 29 | 2020 |
| Can the bubble effect occur in an oil impregnated paper bushing? P Przybylek, H Moranda, K Walczak, H Moscicka-Grzesiak IEEE Transactions on Dielectrics and Electrical Insulation 19 (6), 1879-1883, 2012 | 26 | 2012 |
| Dielectric responses of new and aged transformer pressboard in dry and wet states J Gielniak, C Ekanayake, K Walczak, A Graczkowski, S Gubanski Proceedings of 2005 International Symposium on Electrical Insulating …, 2005 | 25 | 2005 |
| Dielectric frequency response of cellulose samples with various degree of moisture content and aging K Walczak, A Graczkowski, J Gielniak, H Morańda, H Mościcka-Grzesiak, ... Przegląd Elektrotechniczny 1, 264-267, 2006 | 19 | 2006 |
| Method for vacuum state evaluation based on analysis of dynamics changes of electron field emission current and X-radiation in time K Walczak 20th International Symposium on Discharges and Electrical Insulation in …, 2002 | 16 | 2002 |
| Power transformer diagnostics based on acoustic emission method W Sikorski, K Walczak Acoustic emission-research and applications 1, 1-13, 2013 | 15 | 2013 |
| Influence of thermal ageing on dielectric response of oil-paper insulation J Gielniak, A Graczkowski, S Gubanski, H Moranda, H Mościcka-Grzesiak, ... Materials Science-Poland 27 (4/2), 1199-1205, 2009 | 14 | 2009 |
| Analysis of overvoltages appearing in one-sidedly ungrounded MV power cable screen A Schött-Szymczak, K Walczak Energies 13 (7), 1821, 2020 | 10 | 2020 |
| The bubble effect in bushings–investigations on models P Przybylek, H Moranda, K Walczak, H Moscicka-Grzesiak IEEE Transactions on Dielectrics and Electrical Insulation 22 (6), 3405-3412, 2015 | 10 | 2015 |
| Enlargement of fingerprint in procedure of defects recognition in oil-paper insulation using time parameters of PD H Moranda Proceedings of the XIV International Symposium on High Voltage Engineering …, 2005 | 10 | 2005 |
| Assessment of insulation state of power transformer after 35 years of operation using different diagnostic methods K Walczak, A Graczkowski, J Gielniak, S Gubanski, H Moscicka-Grzesiak International Symposium on High Voltage Engineering, 2005 | 10 | 2005 |
| Evaluation of internal pressure of vacuum interrupters based on dynamics changes of electron field emission current and X-radiation K Walczak, J Janiszewski, H Moscicka-Grzesiak 1999 Eleventh International Symposium on High Voltage Engineering 5, 192-195, 1999 | 9 | 1999 |
| Comparative Tests of Partial Discharges in Nomex® 910 Paper and Cellulose Paper H Moranda, H Moscicka-Grzesiak, P Przybylek, K Walczak, R Szewczyk Energies 13 (3), 647, 2020 | 8 | 2020 |
| Online condition monitoring and expert system for power transformers K Walczak, W Sikorski, K Siodla, M Andrzejewski, W Gil Proceedings of the 3rd Advanced Research Workshop on Transformers, Santiago …, 2010 | 8 | 2010 |
| Analiza FDS w ocenie zawilgocenia izolacji transformatorów K Walczak, J Gielniak, A Graczkowski, H Morańda Pomiary Automatyka Kontrola 54 (10), 727-729, 2008 | 8 | 2008 |
| Warunki wystąpienia „bubble effect” w transformatorze o izolacji papierowo-olejowej J Gielniak, H Morańda, S Neumann, M Ossowski, P Przybyłek, K Walczak, ... Konferencja naukowo-techniczna „Transformatory w eksploatacji”, Kołobrzeg …, 2005 | 8 | 2005 |
dr hab. inż. Hubert Morańda, prof. ucz...Poznan University of TechnologyVerified email at put.poznan.pl
