Toshiba GR-200 Series Instruction Manual page 309
Multi functional protection ied
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- Instruction manual (1563 pages)
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Setting example 3 (Bus-bar VT=Phase-C, Line VT= Three-phase)
(iii)
Bus-bar VT
(Phase C)
Figure 2.25-7 Example 3: Input voltages and respective phasor diagram for SYN
Note:
V Busbar is Running voltage.
1
Note:
V Line is Incoming voltage.
2
The configuration of inputs voltages and phases is done as shown in Figure 2.25-7. In
this case, configure the settings in accordance with Figure 2.25-7 and Table 2.25-6.
Output voltage at VT
Input voltage at VCT
VCHK Setting
Note: Set V-L3 for the scheme switch [SYN-VLine]. This is because Vs and V-L3 are in
1
the same phase.
Line
VCT
Line VT
(Three phase)
V a (V L1 )
V b (V L2 )
V c (V L3 )
Vc (Vs)
V Line (V c )
Table 2.25-6 Setting for example 3
Bus-bar VT=
Line VT=
Running voltage (Vs)=
Incoming voltage (V c )=
[SYN-VBus] =
[SYN-VLine]=
- 290 -
V a
V c
a. Phasor diagram in Line
Vs
b. Phasor diagram in Bus-bar
1
2
V Bus-bar (Vs)
Phase-C
Three phase
Phase-C (Bus-bar VT)
Phase-C (Line VT)
Vs
V-L3
1
6F2T0200 (0.15)
V b
GRE200 (1,2)
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