ABB UCC Series Installation And Commissioning Manual page 22

3 Installation in the Transformer
Shielding ring (not to be dismantled)
Insulating shaft
Upper shielding ring. (To be dismantled)
Diverter switch housing
X-contacts
Lower shielding ring. (To be dismantled)
Upper shielding ring of
the tap selector
Screws and
spring washers
Cleat
Conductors
A
TC_00111
Current
B
collector
Tap selector
Lower shielding ring
of the tap selector
Fig. 7. UCC.N (star point type)
~ 100 mm
Conductor
Insulating paper
TC_00169
V-contacts
A
Conductors
B
A – A
B – B
Nut M10
Socket
screw
M10x30
TC_00278
Shielding cap
Conductor
Nut M10
Washer (2x)
10,5x24x3
Socket
screw
M10x30
TC_00277
Cleat
Conductors
Insulating screw M16
Insulating nut M16
Driving pin of the
tap selector
Slot in the large gear
wheel of the diverter
switch housing
TC_00202
Locking nut
Spring washer
Plain washers 14x30x2.5
Socket screw M12x40
Connection point on
the tap selector