Toshiba GR200 Series Instruction Manual page 1058

VTs on feeder
Feeder#1
A B
Figure 5.2-10 Computation of residual voltage
Setting [APPL-Ves2] = Off
(iii)
If no voltage is applied at the Vs2/Ve terminal, the user can set Off for the setting [APPL-
VTes2].
VTs on busbar
CB#1
VTs on feeder
A B C
Feeder
Setting [APPL-Ves2]=Off
Figure 5.2-11 Connection with one VT on the busbar
Setting [APPL-CTSELECT] = 1CT
(iv)
Figure 5.2-12 illustrates the operation in 1CB arrangement using the setting [APPL-
CTSELECT]=1CT. Figure 5.2-13 shows that composites currents (Ia, Ib, and Ic) are generated
physically by wiring for the operation in 1.5CB arrangement.
VTs on busbar
CB#1
CB#2
CB
Feeder#2
C
- 1035 -
Busbar
IED
VCT
VT
Va
Vb
Vc
V s
V s2 /V e
Busbar
Busbar
IED
Relay application
VCT
Three-phase voltages
VT
Va
V L1
Vb
V L2
Vc
V L3
Computation
Zero sequence
phase voltage (3V0)
Reference voltage
V s
V3
V s2 /V e
6F2S1914 (0.49)
Relay application
Three-phase voltages
V L1
V L2
V L3
Computation
Zero sequence
phase voltage (3V0)
Reference voltage
V3
Reference voltage
V4
GRL200 (Soft 033 & 037)