ABB DCS800 - Galvanic Isolation - T90, A92

Technical data
100
3ADW000194R0611 DCS800 Hardware Manual f us
Galvanic isolation - T90, A92
Hard and software settings:
The Galvanic isolation is an option for
converters in the current range 2050...5200 A
DC and rated voltages ≤ 1000 V. For
converters with a rated AC voltage of 1190 V
and 12-pulse serial > 2x 500 V the galvanic
isolation is a standard equipment. It is used to
replace the high-ohmic resistance voltage
measurement and gives the advantage of a
total isolation from power part to electronic
part.
The transformer T90 and the DC transducer A92
are located outside the converter module. The inter-
nal AC and DC voltage measurement channels are
opened and connected to the T90 and A92 units.
8601A1 42000D3 3ADT 745047
42001D3
Voltage coding on measuring board
Construction type
D5 / D6 / D7
Conv. nom. voltage [V] * Y=4 (400V)
Y=5 (500V)
Y=6 (600V) Y=7 (690V) Y=8 (800V) Y=9 (990V) Y=1 (1200V)
Rated mains voltage [V AC] 220…500 270…600 300…690 350…800 450…990 530…1200
Value f. conv. nom. volt at
SET(TINGS) block *
500 600 690 800 990 1200
Measuring board SDCS- PIN-51 PIN-51 PIN-51 PIN-51 PIN-51 PIN-51
Resistors W1…W26
all resistors are 0 Ω
Galvanic isolation
Resistors Rx on PIN51
27.4 kΩ 27.4 kΩ 27.4 kΩ 27.4 kΩ 27.4 kΩ 27.4 kΩ
DC-DC transducer A92 8680A1
Switch position R
G
*
7 (675 V) 6 (810 V) 5 (945 V) 4 (1080 V) 2 (1350 V) 1 (1620 V)
DC-DC transducer A92 42000D3
Switch position R
G
* x
C (0.8 kV) D (1 kV)
x x x
DC-DC transducer A92 42001D3
Switch position R
G
* x x x x
A (1.4 kV) B (1.6 kV)
Transformer T90 3ADT 745047
Secondary Terminals * 2U1
2V1
2W1
2N
2U2
2V2
2W2
2N
2U3
2V3
2W3
2N
2U4
2V4
2W4
2N
2U5
2V5
2W5
2N
2U6
2V6
2W6
2N
* 12-pulse serial and sequential have a different selection between SConvScaleVolt (97.03) and the
scalin
g
of measurement channel. See 1
2
-
p
ulse manual for DCS 800.