Protection I - ABB SACE Emax 2 Series Installation, Operation And Maintenance Instructions

Protection I

t
I3 I
87 | © 2013 ABB | 1SDH001000R0002 - L7804
Path
Main page - Menus - Protections
Function
The protection I protects against instantaneous short circuit.
When the activation threshold is exceeded, the protection trips within a fixed time. The user
can set the activation threshold.
Parameters
The following is a description of the parameters:
I
Parameter Description
Activates/deactivates the protection.
Enabling
It defines the current value that if exceeded activates the protection
(in reference to the curve, it is the part of the curve parallel to the
ordinate).
It is represented both as an absolute value (Ampere) and as a relative
value (In, nominal value defined by the Rating Plug).
Threshold (I3)
IMPORTANT: it can be only activated if the MCR protection
is Off.
IMPORTANT: The I3 threshold set must be higher than the
I2 threshold. An incorrect configuration returns an error on
the display and the programming session doesn't conclude,
with consequent rejection of the changes made to the
parameters.
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