Experience from an operation of the KSW-1140E longwall shearers with an electric drive supplied with 3.3 kV voltage, manufactured by the Zabrzanskie Mechanical Works JSC
GIL E.,  GASZKA J.

S u m m a r y
The experience from an operation of the KSW-1140E longwall shearer with an electric drive, supplied with 3.3 kV, manufactured by Zabrzanskie Mechanical Works S.A. was presented. The shearers of the KSW 1140E type, used in “Wesola” Colliery, meet the mine’s expectations and guarantee the production on the accepted level, after elimination of failures occurring in the first period of operation. Technical solutions used in the mechanical and electrical parts make a design of the shearer very successful.