The generator is a linear generator shaped as an octagon, i.e. it
has eight sides, see Fig. 2. The stator-sides are made up of thin
electric steel sheets and arewound with a three phase winding. The
stator-sides are then attached to the capsule walls. The translator
has eight sides of surface mounted Ne-Fe-B magnets. To keep a low
friction for the motion of the translator and to maintain a 3mmairgap
between the stator-sides and the magnets, four rails mounted
on the translator and 84 wheels divided into four rails are mounted
on the capsule. The stator-sides and the translator have the same
vertical length. This equal length makes the active area of the
generator to change when the translator deviates from its center
position. To keep the generator sealed from seawater a piston rod is
attached to the translator. When the translator moves up and
down, the piston rod will move through a seal housing placed on
the top of the capsule. Some of the main parameters of the
generator are presented