TY - JOUR N2 - The paper presents a model for calculations of the temperature field in electric mine motors with a water cooled frame. That model was worked out with use of modified and improved thermal networks developed by the author for determining the temperature distributions in different types of ac machines. Thermal calculations for a selected type of 400 kW mining motor were performed with use of an original computer program. Their results were compared with those obtained from measurements. On the basis of the verified simulation results there was determined the influence of value changes of parameters characterising the work environment condition (ambient temperature, inlet temperature and cooling water discharge, degree of covering the casing with coal dust) on the mining motor thermal state. L1 - http://journals.pan.pl/Content/84563/PDF/12_paper.pdf L2 - http://journals.pan.pl/Content/84563 PY - 2011 IS - No 3 September EP - 370 DO - 10.2478/v10171-011-0031-6 KW - electrical mining motors KW - thermal network method KW - exploitation of electric machines KW - coal mine undergrounds A1 - Krok, Roman PB - Polish Academy of Sciences VL - vol. 60 DA - 2011 T1 - Influence of work environment on thermal state of electric mine motors SP - 357 UR - http://journals.pan.pl/dlibra/publication/edition/84563 T2 - Archives of Electrical Engineering ER -