TY JOUR TI SYSTEMS FOR ACTIVE MONITORING OF ROTOR BEARING STATE IN TURBINE GENERATOR OF MICRO-TURBINE INSTALLATION KW energy supply KW turbine generator KW micro-turbine installation KW active monitoring KW rotor bearing JO Bulletin of Bryansk state technical university AU Kirichek, A.A. PY 2021 IS 2021 PB Bryansk State Technical University