Toshiba GRL100-701B Instruction Manual page 65

Grl100-7**b series. line differential relay
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UVC. Phase selection logic is described in Section 2.3.2.7.
1
CB-OR
R1-CR
1
1
R2-CR
≥1
[TERM]
+
"2TERM"
Z4
UVL
"Z2"
Zone 2
[ZONESEL]
Zone 3
"Z3"
[PSB-CR]
PSB
NON VTF
Setting
The following shows the setting elements necessary for the UOP and their setting ranges.
For the settings of Z2, Z3, and UVC, refer to Section 2.3.1.
Element
Range
UVL
UVLS
50 - 100 V
UVLG
10 - 60 V
Z4S
0.01 - 50.00Ω
(0.1 – 250.0Ω
BRRS
0.10 - 20.00Ω
(0.5 - 100.0Ω
Z4G
0.01 - 100.00Ω
(0.1 – 500.0Ω
BRRG
0.10 - 20.00Ω
(0.5 - 100.0Ω
TREBK
0.00 - 10.00s
TSBCT
0.00 – 1.00s
CRSCM
PUP/POP/UOP/BOP
DISCR
OFF/ON
ZONESEL
Z2/Z3
PSB - CR
OFF/ON
ECHO
OFF/ON
WKIT
OFF/ON
(*) Ohmic values shown in the parentheses are in the case of 1 A rating. Other ohmic values are in the
case of 5 A rating.
TECCB
t
0
&
0.00 - 200.00s
&
≥ 1
t
0
20ms
0.01-10.00s
&
WIT
&
&
" ON "
Figure 2.3.2.3 UOP Scheme Logic
Step
1V
1V
0.01Ω
0.1Ω
0.01Ω
0.1Ω
0.01Ω
0.1Ω
0.01Ω
0.1Ω
0.01s
0.01s
 64 
ECH
≥ 1
≥ 1
&
TREBK
0
t
≥ 1
CRL
≥ 1
&
Default
Remarks
Weak infeed trip element
77V
Undervoltage detection (phase fault)
45V
Undervoltage detection (earth fault)
Z4 reach
8.00Ω
40.0Ω) (*)
Reverse right blinder reach
5.10Ω
25.5Ω)
Z4 reach
8.00Ω
40.0Ω)
Reverse right blinder reach
5.10Ω
25.5Ω)
0.10s
Current reversal block time
0.10s
POP
Carrier protection mode
OFF
Distance carrier protection enable
Z2
Overreaching element selection
ON
Power swing blocking
ON
Echo function
ON
Weak infeed trip function
6 F 2 S 0 8 5 0
1
CS
TSBCT
0
t
0.00 – 1.00s
Phase
S-TRIP
selection
M-TRIP

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Grl100-702bGrl100-711bGrl100-712b

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