Cooling arrangement for use in housing for holding electrical components of gentle starting device, has blower diagonally installed in opening formed on housing wall, in which rotation axis of blower is inclined with respect to housing wall

摘要

The cooling arrangement has at least one blower (220) which is diagonally installed in an opening formed on the wall of the housing (201) of a gentle starting device (200). The rotation axis (alpha) of the blower is inclined with respect to the housing wall. The cooling arrangement is arranged to cool the switching areas (103,104) which control the flow of electric current without having to use an arc removing chamber. The gentle starting device operates with an electric motor.