GE UR Series C70 Instruction Manual page 422

10.3 PROTECTION METHODS FOR CAPACITOR BANKS
The following figure illustrates parallel capacitor banks, grounded, no tap available, and with current unbalance protection.
In this case, two CT/VT modules are required.
Figure 10–9: PARALLEL BANKS, GROUNDED, NO TAP AVAILABLE, CURRENT BALANCE PROTECTION
The following figure illustrates parallel capacitor banks, grounded, no tap available, with current unbalance protection and
high-side CTs for each bank. In this case, two CT/VT modules are required.
10
Figure 10–10: PARALLEL BANKS, GROUNDED, NO TAP, WITH CURRENT BALANCE PROTECTION AND
10-8
HIGH-SIDE CTS
C70 Capacitor Bank Protection and Control System
10 APPLICATION OF SETTINGS
C70 CAPACITOR BANK RELAY
50P 51P
60P
(C)
59B
60P
(B)
60P
(A)
C70 CAPACITOR BANK RELAY
50P 51P
50P 51P
60P
(C)
60P
59B
(B)
60P
(A)
51N
60N
834761A1.CDR
51N
60N
834762A1.CDR
GE Multilin