Toshiba GR200 Series - (iii) Setting example 3 (Bus-bar VT=Phase-C, Line VT= Three-phase)

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 486 -
(iii) Setting example 3 (Bus-bar VT=Phase-C, Line VT= Three-phase)
VCT
V
a
V
c
Vs
V
b
Line VT
(Three phase)
Bus-bar VT
(Phase C)
Line
Bus-bar
b. Phasor diagram in Bus-bar
a. Phasor diagram in line
V
a
(V
L1
)
V
b
(V
L2
)
V
c
(V
L3
)
Vs (V3)
Vs2 (V4)
V
Bus-bar
(Vs)
2
V
Line
(V
c
)
1
Figure 2.35-8 Example 3: Input voltages and respective phasor diagram for SYN1
1
Note: V
Bus-bar
is Running voltage.
2
Note: V
Line
is Incoming voltage.
The configuration of inputs voltages and phases is done as shown in Figure 2.35-8. In
this case, configure the settings in accordance with Figure 2.35-8 and Table 2.35-9.
Table 2.35-9 Setting for example 3
Output voltage at VT
Bus-bar VT= Phase-C
Line VT= Three phase
Input voltage at VCT
Running voltage (Vs)= Phase-C (Bus-bar VT)
Incoming voltage (V
c
)= Phase-C (Line VT)
VCHK Setting
[SYN-VBus] = V3
[SYN-VLine]= V-L3
1
1
Note: Set V-L3 for the scheme switch [SYN-VLine]. This is because V3 and V-L3 are in
the same phase.