Rockwell Automation 1557 MEDIUM VOLTAGE AC DRIVE - Manual (Page 14)

4-4 HARDWARE DESCRIPTION
1557-UM050F-EN-P – June 2013
Line side converter Components
The line side converter is located in the lower half of the converter cabinet. The line side converter
consists of three identical cells; each cell consists of the following:
4.3 (A) -line side converter heatsink stack
-Silicon Controlled Line side converter (SCR) thyristors
-heatsinks
-clamp
4.3 (B) -snubber capacitors
4.3 (C) -snubber resistors
4.3 (D) -voltage sharing/diagnostic resistors
4.3 (E) -gate driver circuit boards
4.3 (F) -power supply boards
(See Figure 4.3 )
4.3(A)
4.3(D)
4.3(F)
4.3(B)
4.3(C)
4.3(E)
Figure 4.3 – Line Side Converter Components
(2300 V Line Side Converter shown)