ABB ACS 6000 - 10.3.3 Replacing Igcts

ABB Chapter 10 - Changing Semiconductors in VLU
ACS 6000 Maintenance Manual 3BHS202077 ZAB E01 Rev. C 10-3 (6)
1 Remove the isolator disk above the diode and pull the diode out.
2 Continue with section
10.3.5 Finishing Steps , step 1.
10.3.3 Replacing IGCTs
1 Disconnect fiber optic cable and the power supply lead of the IGCT to
be replaced (see arrows in
Figure 10-3 ).
Figure 10-3
2 Loosen the hexagon fastening bolts of the IGCTs (see arrows in
Figure 10-4 ).
Figure 10-4
Retaining rods