Follow
Krzysztof Walczak
Title
Cited by
Cited by
Year
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
3272006
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
1662006
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
632013
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
462016
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
322020
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
252012
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
252005
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
192006
Power transformer diagnostics based on acoustic emission method
W Sikorski, K Walczak
Acoustic emission-research and applications 1, 1-13, 2013
152013
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
152002
Influence of thermal ageing on dielectric response of oil-paper insulation
J Gielniak, A Graczkowski, S Gubanski, H Moranda, H Moscicka-Grzesiak, ...
Materials Science-Poland 27 (4/2), 1199-1205, 2009
142009
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
102015
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
102005
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
102005
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
92010
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
91999
Analysis of overvoltages appearing in one-sidedly ungrounded MV power cable screen
A Schött-Szymczak, K Walczak
Energies 13 (7), 1821, 2020
82020
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
82020
Analiza FDS w ocenie zawilgocenia izolacji transformatorów
K Walczak, J Gielniak, A Graczkowski, H Morańda
Pomiary Automatyka Kontrola 54 (10), 727-729, 2008
82008
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
82005
The system can't perform the operation now. Try again later.
Articles 1–20