Pickup ratio (I = I
2
/ I
1
)
This setting defines the operating threshold of the element. The ratio of the 2nd harmonic component of
current compared to the fundamental component of current is exceeded.
This setting must be set to the default value unless in-service experience produces incorrect operation.
81HBL2 Release Block
Default setting: 1.0 ⋅ I
s
If I
1
crosses this setting, inrush block is released.
Settings Menu
CONFIGURATION > FUNCTION CONFIG
Parameter Setting Options Settings
Default Gn1 Gn2
Gn Inrush Detector Disabled
Enabled
Disabled – –
CONFIGURATION > SUPERVISION > INRUSH DETECTOR
Parameter Setting Options Settings
Default Gn1 Gn2
Gn 81HBL2 Setting 0.10 ⋅ I to 0.50 ⋅ I
Δ 0.05 ⋅ I
0.20 ⋅ I – –
81HBL2 Release Block 0.3 ⋅ I
s
to 20.0 ⋅ I
s
Δ 0.1 ⋅ I
s
1.0 ⋅ I
s
– –
Information List
Input/Output Matrix
User Logic Type IEC 103 Modbus RTU
Inhibit 81HBL2 Inhibit 81HBL2 Input – –
81HBL2 81HBL2 Output – –
Functions
3.7 2nd Harmonic Block/Inrush Restraint (81HBL2)
Reyrolle, 7SR46 Device, Manual 59
C53000-G7040-C103-1, Edition 10.2022
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