ABB SACE Tmax XT5 Operation And Maintenance Manual page 51

Current thresholds Function
49 | © 2019 ABB | 1SDH002039A1002 - ECN000093027 - Rev. A
The Current thresholds allow checks to be set along the current lines, to be associated with the programmable
contacts of the Ekip Signalling modules (in all versions).
Two pairs of programmable contacts are available:
• Threshold 1 I1 and Threshold 2 I1, with control relating to I1
• Threshold Iw1 and Threshold Iw2, with control relating to In
The thresholds can be enabled and set in the Advanced - Signaling menu (page 31).
IMPORTANT:
• the current thresholds do not handle the trip, just the signal
• the function is activated if the trip unit is powered by auxiliary voltage
Parameters
Threshold Available parameters
Enable: Activates the protection and availability of the threshold in the
menu
Threshold 1 I1
Threshold: The value is given in percentage of threshold I1 and can be
set within the range: 50% I1 to 100% I1, in 1% steps.
Enable: Activates the protection and availability of the threshold in the
menu
Threshold 2 I1
Threshold: The value is given in percentage of threshold I1 and can be
set within the range: 50% I1 to 100% I1, in 1% steps.
Enable: Activates the protection and availability of the threshold in the
menu
Direction: allows the user to choose whether to have the signal when
Threshold Iw1 the current is higher (Up) or lower (Down) than the threshold.
Threshold: The value is given as both absolute value (Amperes) and
relative value (In) and can be set within the range: 0.1 In to 10 In, in
0.01 In steps
Enable: Activates the protection and availability of the threshold in the
menu
Direction: allows the user to choose whether to have the signal when
Threshold Iw2 the current is higher (Up) or lower (Down) than the threshold.
Threshold: The value is given as both absolute value (Amperes) and
relative value (In) and can be set within the range: 0.1 In to 10 In, in
0.01 In steps
Figure 27
ABB | SACE Tmax XT
Default
OFF
50 % I1
OFF
75 % I1
OFF
Down
3 In
OFF
Up
3 In
Protections | 1 - Standard Protections