The brush-assembly plate made of aluminum and of good electrical conductivity and passing through the air gap is fixed to the foundation plate (27) of preferably non-magnetic material and is kept electrically insulated from it through the insulating brush (24).
(The brush-assembly plate; made; of aluminum) (The brush-assembly plate; passing; through the air gap) (The brush-assembly plate made of aluminum and of good electrical conductivity and passing through the air gap; is fixed; )
The brush-assembly plate The brush-assembly plate The brush-assembly plate made of aluminum and of good electrical conductivity and passing through the air gap
made passing is fixed
of aluminum
through the air gap