Toshiba GR 200 Series, Инструкция по эксплуатации

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6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 678 -
Δ 
Δ  reducing
Δ  increasing
Δ

near
zero
Vr†
Vi‡
Vi
Vi
Vi
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.
Table 4.6-3 Settings in SYNCHK_Ry1
Setting Name Description Default Setting item or value
SyncRy1-Angle Checking angle variance 30 degrees 0 to 75 degrees
SyncRy1-dV Checking voltage variance 150V 0 to 150 V
SyncRy1-df Checking frequency variance 1Hz 0.01 to 2 Hz
SyncRy1-TCB Advance time for SYNCHK01 – Seconds
SYNC01_TSYN Sync check timer for loop system 10s 0.00 to 100.00 s
SyncRy1-dfEN Diff. frequency for the checking SyncRy1 enable Off Off / On
(i)
Synchronism-relays (SyncRy1-dV, SyncRy1-df, SyncRy1-d
θ
)
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 (
Δ
V) (see Figure 4.6-3)
The voltage-variance between Vr and Vi (
|𝑉
𝑟
− 𝑉
𝑖
|
) is measured by the voltage-variance relay-
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.
𝑉
r
≥ Setting [
OVR1
]
(4.6-1)
𝑉
i
≥ Setting [
OVI1
]
(4.6-2)
|𝑉
𝑟
− 𝑉
𝑖
| ≤ Setting [
SyncRy1-dV
]
(4.6-3)