Protection - Siemens SmartGear IE User Manual

Sm@rtGear™ IE User Manual

5.7 Protection

All breaker protective parameters are viewed and set from the Protection screen for both A and B (maintenance) parameters. To
navigate between A and B parameters, there is a "Go To Breaker A/B Parameters" button located in the Breaker Controls section in
the lower left of the Protection screen.
The Long Time Settings section is located in the upper left of the Protection screen. This section contains parameters for the follow-
ing values:
• Long Time Pickup (in Amps)
• Long Time Delay (in Sec.)
• I
t Curve for Long Time
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• Phase Loss Sensitivity
• Thermal Memory
The Short Time Settings section is located in the mid left of the Protection screen. This section contains parameters for the following
values:
• Short Time Pickup (in Amps)
• Short Time Delay (in ms)
• I
2 t Curve for Short Time
The Instantaneous Settings section is located in the mid left of the Protection screen. This section contains parameters for the
following values:
• Instantaneous Pickup (in Amps)
The Ground Fault Settings section is located in the upper right of the Protection screen. This section contains parameters for the
following values:
• Ground Fault Pickup (in Amps)
• Ground Fault Delay (in ms)
• I
t Curve for Ground Fault
2
• Ground Fault Alarm Pickup (in Amps)
• Ground Fault Alarm Delay (in ms)
• Ground Fault Transformer
The Neutral Settings section is located in the mid right of the Protection screen. This section contains parameters for the following
values:
• Neutral Pickup (in Amps)
The Breaker Controls section is located in the lower left of the Protection screen. This section contains "activate" buttons for Edit
Mode, Upload to Memory, Download from Memory, and Activate New Settings.
The Pickup Limits section is located in the lower right of the Protection screen. This section contains the min/max parameters for
Long Time Settings, Short Time Settings, Instantaneous Settings, Neutral Settings, and Ground Fault/Alarm Settings. Min/max
parameters are specific to each breaker based on frame size, switching class, and rating plug. If an out of range value is entered, the
input immediately reverts back to the previous settings.
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