ABB SACE Emax 2 Series Operating Instructions Manual page 62

I Protection
t
I3
59 | © 2023 ABB | 1SDH001330R1002 - ECN000297030
Function
If the current of one or more phases exceeds threshold I3, the protection trips and, after a non-
programmable fixed time, transmits the TRIP command.
I
To check and simulate the trip times in relation to all the parameters, please consult:
• summary table of the protections with the operating characteristics (page 95)
• the graph with trip curve (page 102)
Parameters
I
Parameter Description
Activates/deactivates the protection and its availability in the
Enable
parameters menu.
Establishes the value that activates the protection.
Threshold I3 The value is given as both absolute value (A) and relative value (In)
and can be set within the range: 1.5 In to 15 In, in 0.1 In steps
Activates/deactivates the function
ZoneSelectivity
Activates/deactivates the function and availability of the
StartUp enable
associated parameters on the display (page 85)
Protection threshold valid during Startup time, in the conditions
StartUp in which the function is activated (page 85)
Threshold The value is given as both absolute value (A) and relative value (In)
and can be set within the range: 1.5 In to 15 In, in 0.1 In steps
This is the time for which the StartUp threshold remains
activated, as calculated from the moment the activation
StartUp Time
Threshold is exceeded (page 85)
The value is given in seconds and can be set within the range: 0.1
s to 30 s, in 0.01 s steps
Limitations and additional functions
• protection cannot be deactivated in "Non-defeatable instantaneous protection" version; consult
catalog for further details (1SDC200023D0209)
• threshold I3 must be higher than threshold I2 (if S and I protections are activated)
• I protection can be activated with MCR protection disabled
• the block functions can also be accessed by means of the service connector (via Ekip Connect) or
communication via system bus (page 86)
NOTE: if at least two of the selectivity S, S2, I, 2I and MCR
are enabled, the input and output are shared with the OR
function; it is sufficient that even a selectivity is activated to
stimulate inputs and outputs
ABB | SACE Emax 2
Default
ON
5,5 In4 In
OFF
OFF
1,5 In
0.1 s
Ekip Touch - Protections
2 - Standard Protections