Connection For 2-Quadrant Application - Parallel Thyristors - ABB DCS800 Installation And Start-Up Manual
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Also See for DCS800:
- Service manual (158 pages) ,
- Hardware manual (134 pages) ,
- Installation manual (70 pages)
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Connection for 2-quadrant application - parallel thyristors
With parallel connected thyristors, the additional board SDCS-REB-2 is needed.
Because of the REB-2 board external +24V and +48V are needed. The power
supply SDCS-POW-4 is not able to give enough power for parallel connected thy-
ristors.
The additional board SDCS-REB-1 can be used, but must not be used. Depending
on the final decision the flat cable from X613 (SDCS-REB-2) has to be connected
to either X613 (SDCS-REB-1) or X513 (SDCS-PIN-51 with SDCS-REB-1 re-
moved).
The figure below shows the configuration for a 2-quadrant bridge with 4 parallel
connected thyristors.
+48VEXT
+24VEXT
0VEXT
0VEXT
X22 X122 X23
2-quadrant application, parallel thyristors.
Interfacing the Electronics and Thyristors
X42
X32
X41
X31
X22
X12
X1
X21
X11
SDCS-REB-2
X2
X713
X613
X24
X25
SDCS-PIN-51
SDCS-REB-1
20
3ADW000197R0101 DCS800-R Sel e a
RB_2q_4p_a.dsf
G
G
G
G
G
G
C
C
C
C
C
C
G
G
G
G
G
G
C
C
C
C
C
C
A
B
C
D
E
F
G
G
G
G
G
C
C
C
C
C
A
B
C
D
E
F
SDCS-PIN-41
G
G
G
G
G
A
C
B
C
C
C
D
C
E
C
SDCS-PIN-41
A
B
C
D
SDCS-PIN-41
SDCS-PIN-48
Forward bridge pulse transformer boards
G
C
G
F
C
E
F
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