6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 688 -
4.6.4
Synchronization check
The user should set
On
for scheme switch [
SYNC01-SYNCHK1EN
] when synchronization check
is required.
(i)
Synchronization conditions
The synchronizing relays are used to check the respective conditions of the incoming-line and
the running-line. For example, the ∆V, ∆θ, and ∆f variances of Vi and Vr may be examined
when the SYNCHK function is used in a synchronous network. Conversely, the ∆θ reducing-
degree feature can be applied for asynchronous networks; the SYNCHK function can use
signals ‘∆θ1≈0’ and ‘∆θ1_less’ in order to decide whether the difference-angle is reducing. Thus,
the SYNCHK function is required to have two sets of check logic covering both (1) synchronous
conditions and (2) asynchronous conditions.
SyncRy1
-
Ɵ≈0
SyncRy1
-
dƟ
SyncRy1
-dV
SyncRy1
-df
ΔƟ1: Phase-variance of Running and Incoming
ΔV1: Voltage-variance of Running and Incoming
Δf1: Frequency-variance of Running and Incoming
ΔƟ1≈0: Phase-variance being near zero between Running and Incoming
SyncRy1
-
Ɵ less
ΔƟ1 less: Reducing in phase-valiance
56001 8701001B6A
56001 8401001B64
56001 8501001B65
56001 8601001B65
56001 8801001B6B
To check for Synchronous network
To check for Asynchronous network
Figure 4.6-12 Synchronization check relays in SYNCHK_Ry1
ΔƟ2: Phase-variance of Running and Incoming
ΔV2: Voltage-variance of Running and Incoming
Δf2: Frequency-variance of Running and Incoming
ΔƟ2≈0: Phase-variance being near zero between Running and Incoming
ΔƟ2 less: Reducing in phase-valiance
To check for Synchronous network
To check for Asynchronous network
SyncRy2
-
Ɵ≈0
SyncRy2
-
dƟ
SyncRy2
-dV
SyncRy2
-df
SyncRy2
-
Ɵ less
561001 8702001B6A
561001 8402001B64
561001 8502001B65
561001 8602001B66
561001 8802001B6B
Figure 4.6-13 Synchronization check relays in SYNCHK_Ry2
Figure 4.6-14 shows the synchronization check logic in the SYNCHK1 function. The user
should note that the logic has been separated for (1) the synchronous condition and (2) the
asynchronous condition; the synchronization check logic is initiated when the
“DPSY01_OEC_RCV” signal is received, which is identical to an operate-command in the On-
direction.
Содержание GR 200 Series
Страница 1047: ...6F2S1915 0 46 GRZ200 Soft 031 032 1026 Figure 8 3 4 Screen shot from GR TIEMS ...
Страница 1354: ...6F2S1915 0 46 GRZ200 Soft 031 032 1333 Appendix 1 Signal list for common function ...
Страница 1369: ...6F2S1915 0 46 GRZ200 Soft 031 032 1348 Unit mm Panel cut out for 1 2 case size Figure 2 2 3 Panel cutout figure 1 2 size case ...
Страница 1410: ...6F2S1915 0 46 GRZ200 Soft 031 032 1389 This page is intentionally blank ...
Страница 1480: ...6F2S1915 0 46 GRZ200 Soft 031 032 1459 Appendix 6 Ordering ...
Страница 1497: ...6F2S1915 0 46 GRZ200 Soft 031 032 1476 Appendix 7 Technical data ...
Страница 1518: ...6F2S1915 0 46 GRZ200 Soft 031 032 1497 Appendix 8 Manufacture setting ...
Страница 1520: ...6F2S1915 0 46 GRZ200 Soft 031 032 1499 Appendix 9 Matrix between VCT terminals and relay applications ...
Страница 1523: ...6F2S1915 0 46 GRZ200 Soft 031 032 1502 Appendix 10 CT requirement ...
Страница 1531: ...6F2S1915 0 46 GRZ200 Soft 031 032 1510 Appendix 12 Engineering exercise ...
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