ABB
Chapter 8 - Changing Diodes and IGCTs in 7/9 MVA Phase Modules
ACS 6000 Maintenance Manual
3BHS202077 ZAB E01 Rev. C
8-17 (18)
3
Disconnect the fiber optic cable and the power supply lead of the
IGCT to be replaced.
4
Loosen all hexagon fastening bolts of the IGCTs (see arrows in
Figure
8-21) and remove the two retaining rods.
5
Extract the top isolator disk.
6
Lift the cooler above the faulty IGCT and extract the faulty IGCT.
The cooler above the upper IGCT can be lifted up by hand.
When extracting a lower IGCT it is recommended to use the spreader
tool.
Figure 8-22
Using the Spreader Tool
7
In case the new IGCT is not fitted with retaining clamps and guides
(see
Figure 8-23) remove these parts from the faulty IGCT and mount
them on the new IGCT.
Figure 8-23
IGCT
Guides
Retaining clamps
Содержание ACS 6000
Страница 6: ...ABB 4 4 3BHS202077 ZAB E01 Rev C ACS 6000 Maintenance Manual...
Страница 14: ...Chapter 2 Checking IGCTs and Diodes ABB 2 6 6 3BHS202077 ZAB E01 Rev C ACS 6000 Maintenance Manual...
Страница 20: ...Chapter 3 Changing Diodes and Thyristors in LSU ABB 3 6 6 3BHS202077 ZAB E01 Rev C ACS 6000 Maintenance Manual...
Страница 30: ...Chapter 4 Changing 3 5 MVA Phase Modules ABB 4 10 10 3BHS202077 ZAB E01 Rev C ACS 6000 Maintenance Manual...
Страница 68: ...Chapter 9 Changing Thyristors in EXU ABB 9 8 8 3BHS202077 ZAB E01 Rev C ACS 6000 Maintenance Manual...
Страница 80: ...Chapter 11 Changing IGCTs in DIU ABB 11 6 6 3BHS202077 ZAB E01 Rev C ACS 6000 Maintenance Manual...
Страница 104: ...Chapter 14 Tightening Torques and Threaded Connections ABB 14 4 4 3BHS202077 ZAB E01 Rev C ACS 6000 Maintenance Manual...