Logic of the Function (50-n)
[lo_7sr46_InstantaneousOvercurrentFn, 1, en_US]
Figure 3-1
Logic Diagram of the Instantaneous Overcurrent Protection (50)
Application and Settings Notes
Gn 50-n Element
Default setting: Disabled
This setting is used to allow the element to be switched on and off based on the user requirement. An indi-
vidual setting is provided for each element. The settings of the individual element can be configured inde-
pendently of each other.
Parameter State
Description
Disabled
The element is inactive
Enabled
The element is active
Gn 50-n Setting
Default setting = 1.0 ⋅ I
s
This setting defines the operating current threshold of the element. The applied phase current must exceed
this setting by a factor of 1.00x for pickup of the element. The operation time is then dependent on the
selected delay for the element setting. The element pickup resets when the current is reduced under the
following conditions:
•
0.2 ⋅ I
s
to 20.0 ⋅ I
s
is ≥ 90% I
op
This setting is set to suit the individual application.
Functions
3.2 50 Instantaneous Overcurrent - Phase
38 Reyrolle, 7SR46 Device, Manual
C53000-G7040-C103-1, Edition 10.2022
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