Toshiba GR 200 Series, Instruction Manual

Page: 715 / 1563

6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 694 -
4.6.6
Voltage selection for line arrangement
As shown in Figure 4.6-16, input-voltage signals are required in response to the line and bus-
bar arrangement. Incidentally, the input-voltage signals supplied by the VTs are applied to the
IED via the transformer module (VCT†); hence, the input-voltage signal should correspond
with the required relay-element. On this account, settings are provided in the SYNCHK_Ry
function.
Va
→
V-L1
Vb
→
V-L2
Vc
→
V-L3
Signal
names
Vs
→
V3
Vs2
→
V4
SYNCHK_ Ry1
Relays for
running voltage
Relays for
incoming voltage
Scheme switches [
SyncRy1-VR
] etc. select a running
voltage and an incoming voltage.
SYNCHK_ Ry2
Scheme switches [
SyncRy2-VR
] etc. select a running
voltage and an incoming voltage.
Relays for
incoming voltage
Relays for
running voltage
V2a
→
V2-L1 ‡
V2b
→
V2-L2 ‡
V2c
→
V2-L3 ‡
VCT
Setting
names
Figure 4.6-18 Voltage signals selected using scheme switches
†Note: For the actual terminal arrangement and signals injected, see chapter
Technical
description: Transformer module for AC analog input.
Figure 4.6-18 illustrates that the signals injected are distributed using scheme switches:
[
SyncRy1-VR
], [
SyncRy1-VI
], [
SyncRy1-VR
], and [
SyncRy1-VI
]. Examples below show how to
apply a voltage signal for the required relay-element.
(i)
Setting example
Figure 4.6-19 depicts an example of a busbar arrangement and S43P logic programmed by the
user. In this case, only the SYNCHK_Ry1 function is used; therefore, the user need only select
the signal provided by the S43P logic for the SYNCHK_Ry1 function.