ABB Relion 670 Series Applications Manual page 249

1MRK 511 401-UEN Rev. K
Table 37:
Parameters
Connection type of SCB
Rated filter voltage
Filter rated MVAr
System frequency
Number of parallel elements in a unit (P
Number of series elements in a unit (S
Number of capacitor units in per quadrant per phase
Number of capacitor elements in a unit
Capacitance value of an element (C
Phase CT ratio
Neutral CT ratio
Figure 115
107MVAr
IEC19000590 V1 EN-US
Figure 115: Single line diagram for grounded H-bridge connected capacitor bank
The configuration of C
Bay control REC670
Application manual
Parameters of the grounded capacitor bank
)
e
shows the single line diagram for the grounded H-bridge capacitor bank.
26.2 kV Bus
and C in the filter are shown in
u e
© Copyright 2017 Hitachi Power Grids. All rights reserved
Value
Internally fused grounded H-bridge
26.2 kV
107 MVAr
50 Hz
) 19
e
) 2
e
3 × 2 + 2 × 2 + 2 × 2 = 14
2 × 19 = 38
14.992 µF
1000/1 A
75/1 A
Preprocessing
Function Block
SMAI1 SMAI1
GRP1Lx GRP1Lx G1AI3P G1AI3P
SMAI2
GRP2Lx G2AI3P GRP2Lx
G2AI3P
Figure
Unbalance protection
SCUCPTOC SCUCPTOC
I3P
I3UNB
IED
IEC19000590-1-en.vsdx
116.
Section 10
243