Toshiba GR200 Series Instruction Manual page 823

Figure 4.6-4 Permissible ranges for connections between asynchronous networks
Note: Vr is the voltage on a running line.
†
Note: Vi is the voltage on an incoming line.
‡
Setting Name Description
SyncRy1-Angle Checking angle variance
SyncRy1-dV Checking voltage variance
SyncRy1-df Checking frequency variance
SyncRy1-TCB Advance time for SYNCHK01
SYNC01_TSYN Sync check timer for loop system
SyncRy1-dfEN Diff. frequency for the checking SyncRy1 enable
Synchronism-relays (SyncRy1-dV, SyncRy1-df, SyncRy1-dθ)
(i)
Synchronism-relays, SyncRy1-dV, SyncRy1-df, and SyncRy1-dθ are provided; the setting
ranges for these relays are shown in Table 4.6-3.
Voltage-variance (ΔV) (see Figure 4.6-3)
The voltage-variance between Vr and Vi ( | ��
element having a setting [SyncRy1-dV]. If equation (4.6-3) is satisfied together with the
conditions stipulated in equations (4.6-2) and (4.6-3), the SyncRy1-dV relay determines that
the voltage-variance is inside the permissible range.
Δ increasing
V i
V i ‡
Δ
Table 4.6-3 Settings in SYNCHK_Ry1
≥ Setting [ OVR1 ]
��
r
�� ≥ Setting [OVI1]
i
| �� | ≤ Setting [SyncRy1-dV]
− ��
�� ��
- 800 -
Δ reducing
Δ near
zero
V i
V i
V r †
Default
30 degrees
150V
1Hz
–
10s
Off
| ) is measured by the voltage-variance relay-
− ��
�� ��
6F2S1914 (0.49)
Setting item or value
0 to 75 degrees
0 to 150 V
0.01 to 2 Hz
Seconds
0.00 to 100.00 s
Off / On
(4.6-1)
(4.6-2)
(4.6-3)
GRL200 (Soft 033 & 037)