Settings
SEL-351P Quick-Start Installation and User's Guide (Portuguese)
41
No.
Setting
Default
Range
Incr.
7
Min. trip - SEF
OFF
OFF, 1.00-299.99 Amps primary
0.01
The
Min. trip - SEF
setting determines the minimum sensitive earth fault threshold for overcurrent
detection set in primary Amps.
The displayed Amps primary setting range for
Min. trip - SEF
is calculated by multiplying the effective Amps
secondary range [0.005 to 1.500] by the
CT Ratio
(No. 3) [200.0]:
(0.005 to 1.500)
•
200.0 = 1.00 to 300.00 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., 299.99 instead of 300.00).
•
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 - SEF
is set to OFF, then the following settings are all hidden and set to zero
(0) and OFF, respectively:
Time delay - SEF
(No. 12)
Operations to lockout - SEF
(No. 17)
No.
Setting
Default
Range
Incr.
8
Fast curve - phase
A
OFF, U1-U5, C1-C5, recloser or user curve
The
Fast curve - phase
setting selects the time-overcurrent curve for phase fast curve tripping. Curve
designations are provided in Table 6 and Table 7.
•
This setting is hidden and set to OFF if
Min. trip - phase
(No. 5) is set to OFF.
•
If
Fast curve - phase
is programmed with a US (U1-U5) or IEC (C1-C5) curve, enter the following
two settings:
Setting
Default
Range
Incr.
Time-dial - phase fast curve
1.00
0.50 - 15.00 for US curves U1-U5
0.05 - 1.00 for IEC curves C1-C5
0.01
0.01
The
Time-dial - phase fast curve
setting shifts the US or IEC curve in time by the entered
multiplier.
•
This
setting is hidden and nonoperative if
Fast curve - phase
is programmed with a recloser or
user curve.
Setting
Default
Range
Incr.
EM reset - phase fast curve
N
Y/N
The
EM reset - phase fast curve
setting enables the electromechanical reset emulation for the US or
IEC curve, if set to Y.
•
This
setting is usually set to N, except for special applications.
•
This setting is hidden and set to N if
Fast curve - phase
is programmed with a recloser or user
curve.
Содержание SEL-351P
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