TY JOUR TI BROACHING LOOP WINDINGS OF THREE-PHASE SUBMERSIBLE ELECTRIC MACHINES OF OPEN DESIGN KW winding pitch KW number of stator slots KW submersible electric machines KW number of poles and phases KW single-layer extended loop winding KW direction of rotation of the field KW electromagnetic moment KW concentric coils JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Bulatova, Y.M. AU Reva, Y.V. PY 2024 IS 2024 PB Saint-Petersburg University of State Fire Service of Emercom of Russia