ABB Relion 670 Series Applications Manual page 243

1MRK 511 401-UEN Rev. K
Parameters of SCB
Number of series group capacitor elements in a
unit (S
e
Capacitance value of an element (C
Phase CT ratio
Neutral CT ratio
Figure 112
7.31 MVAr
IEC19000199 V1 EN-US
Figure 112: Single line diagram for ungrounded double WYE capacitor bank
The configuration of capacitor unit (C
the Figure
Bay control REC670
Application manual
)
shows the single line diagram for the ungrounded double WYE capacitor bank.
13.8 kV Bus
113.
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Value
6
) 24.95 μF
e
1000/1 A
75/1 A
Preprocessing
Function Block
SMAI1 SMAI1
GRP1Lx GRP1Lx
G1AI3P G1AI3P
SMAI2
GRP2L1 GRP2L1
G2AI3P G2AI3P
) and capacitor element (C
u
Section 10
Unbalance protection
SCUCPTOC SCUCPTOC
I3P
I3UNB
IED
IEC19000199-1-en.vsdx
) in the filter are shown in
e
237