Toshiba GRL100-701B, Инструкция по эксплуатации

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6 F 2 S 0 8 5 0
Voltage Mode 1 2 3 4
Busbar voltage (VB) live live dead dead
Line voltage (VL) live dead live dead
The synchronism check is performed for voltage mode 1 while the voltage check is performed
for voltage modes 2 and 3.
&
SYN1
UVL1
OVL1
OVB
&
UVB
+
"
OFF
"
[VCHK]
"
SY
"
"
DB
"
"
LB
"
DBLL
LBDL
SYN-OP
TLBD1
0.01 – 10.00S
0.01 – 1.00S
TDBL1
0.01 – 1.00S
&
&
TSYN1
≥
1
57
58
61
59
60
159
T3PLL
0.01 – 1.00S
498
3PLL
(Three phase live line)
OVL1
(3PH)
78
Figure 2.15.2.3 Energizing Control Scheme
Figure 2.15.2.3 shows the energizing control scheme. The voltage and synchronism check
output signal SYN-OP is generated when the following conditions have been established:
•
Synchronism check element SYN1 operates and on-delay timer TSYN1 is picked up.
•
Busbar overvoltage detector OVB and line undervoltage detector UVL1 operate, and
on-delay timer TLBD1 is picked up. (This detects the live bus and dead line condition.)
•
Busbar undervoltage detector UVB and line overvoltage detector OVL1 operate, and
on-delay timer TDBL1 is picked up. (This detects the dead bus and live line condition.)
Using the scheme switch [VCHK], the energizing direction can be selected.
Setting of [VCHK] Energizing control
LB Reclosed under the "live bus and dead line" condition or with synchronism check.
DB Reclosed under the "dead bus and live line" condition or with synchronism check.
SYN Reclosed with synchronism check only.
OFF Reclosed without voltage and synchronism check.
When [VCHK] is set to "LB", the line is energized in the direction from the busbar to line under
the "live bus and dead line" condition. When [VCHK] is set to "DB", the lines are energized in
the direction from the line to busbar under the "dead bus and live line" condition.
When the synchronism check output exists, autoreclose is executed regardless of the position of
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