Replacement Of Fuses And Thyristor Assemblies On Converters Of 1500A And Above - Siemens 6RA7086-6KS22 Operating Instructions Manual

05.05
13.2.4 Replacement of fuses and thyristor assemblies on converters of 1500A and
above
5
25 Nm
4
6 Nm
• Undo the M6 hexagonal nut
• Swing the fan
• Remove the brace
screws.
• Remove fuses
converter model).
• Undo the M10 hexagon-head screw
• Undo assembly locking mechanism (M6 hexagonal nut)
upwards at an angle.
• Install the new components in the reverse order.
Caution: The fuse mounting screws are of different lengths!
SIEMENS AG 6RX1700-0AD76
SIMOREG DC Master Operating Instructions
6 8
25 Nm 6 Nm
a
.
s
upwards and hold in place with support rail
f
with the attached protective cover by undoing the 2 M6 hexagon-head
g
by undoing the 2 hexagon-head screws on each (M10 or M12 depending on
h
d
and swing thyristor assembly
k
, and pull out thyristor assembly
Maintenance
2
3
1
10 Nm
7
.
j
out towards you.
j
13-9