Settings
40 SEL-351P Quick-Start Installation and User's Guide (Portuguese)
No. Setting Default Range Incr.
5 Min. trip - phase 200.00 OFF, 20.00-639.99 Amps primary 0.01
The Min. trip - phase setting determines the minimum phase current threshold for overcurrent detection in
primary amps.
The displayed Amps primary setting range for Min. trip - phase is calculated by multiplying the effective
Amps secondary range [0.10 to 3.20] by the CT Ratio (No. 3) [200.0]:
(0.10 to 3.20) • 200.0 = 20.00 to 640.00 range (Amps primary)
If the CT Ratio setting changes, the displayed Amps primary setting range for Min. trip - phase changes
accordingly. Due to processor calculations and rounding techniques, displayed range numbers may appear
slightly different than expected (e.g., 639.99 instead of 640.00).
• WARNING: If Min. trip - phase (No. 5), Min. trip - ground (No. 6), and Min. trip - SEF (No. 7)
are all set to OFF, then overcurrent protection and reclosing are disabled.
• WARNING: If Min. trip - phase is set to OFF, then the following settings are all hidden and set to
OFF or N:
Fast curve - phase (No. 8)
Delay curve - phase (No. 10)
Operations - phase fast curve (No. 13)
Operations to lockout - phase (No. 15)
Complex fast curve - phase (No. 25)
Complex delay curve - phase (No. 27)
High current trip - phase (No. 29)
High current lockout - phase (No. 31)
No. Setting Default Range Incr.
6 Min. trip - ground 50.00 OFF, 1.00-639.99 Amps primary 0.01
The Min. trip - ground setting determines the minimum ground current threshold for overcurrent detection
in primary amps.
The displayed Amps primary setting range for Min. trip - ground is calculated by multiplying the effective
Amps secondary range [0.005 to 3.20] by the CT Ratio (No. 3) [200.0]:
(0.005 to 3.20) • 200.0 = 1.00 to 640.00 range (Amps primary)
If the CT Ratio setting changes, the displayed Amps primary setting range for Min. trip - ground changes
accordingly. Due to processor calculations and rounding techniques, displayed range numbers may appear
slightly different than expected (e.g., 639.99 instead of 640.00).
If Min. trip - ground is effectively set <0.1 Amp secondary (e.g., for CT ratio [No. 3] = 200.0, Min. trip -
ground <20.00 Amps primary), then the corresponding curves flatten out above 1.5 Amps secondary (e.g., for
CT ratio [No. 3] = 200.0, Fast curve - ground [No. 9] and Delay curve - ground [No. 11] flatten out above
300 Amps primary).
• WARNING: If Min. trip - phase (No. 5), Min. trip - ground (No. 6), and Min. trip - SEF (No. 7)
are all set to OFF, then overcurrent protection and reclosing are disabled.
• WARNING: If Min. trip - ground is set to OFF, then the following settings are all hidden and set to
OFF or N:
Fast curve - ground (No. 9)
Delay curve - ground (No. 11)
Operations - ground fast curve (No. 14)
Operations to lockout - ground (No. 16)
Complex fast curve - ground (No. 26)
Complex delay curve - ground (No. 28)
High current trip - ground (No. 30)
High current lockout - ground (No. 32)
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