Date _______________
Date Code 20080213 Instruction Manual SEL-351A Relay
SET.21
of 32
SEL-351A Settings Sheets
Global Settings (Serial Port Command SET G and Front Panel)
Station DC Battery Monitor (See Figure 8.9 and Figure 8.10)
DC battery instantaneous undervoltage pickup
(OFF, 20–300 Vdc)
DCLOP =
DC battery instantaneous overvoltage pickup
(OFF, 20–300 Vdc)
DCHIP
Optoisolated Input Timers (See Figure 7.1)
Input IN101 debounce time
(AC, 0.00–1.00 cycles in 0.25-cycle steps)
IN101D =
Input IN102 debounce time
(AC, 0.00–1.00 cycles in 0.25-cycle steps)
IN102D =
Input IN103 debounce time
(AC, 0.00–1.00 cycles in 0.25-cycle steps)
IN103D =
Input IN104 debounce time
(AC, 0.00–1.00 cycles in 0.25-cycle steps)
IN104D =
Input IN105 debounce time
(AC, 0.00–1.00 cycles in 0.25-cycle steps)
IN105D =
Input IN106 debounce time
(AC, 0.00–1.00 cycles in 0.25-cycle steps)
IN106D =
Breaker Monitor Settings (See Breaker Monitor on page 8.2)
Breaker monitor enable (Y, N) EBMON =
(Make the following settings if preceding enable setting EBMON = Y.)
Close/Open set point 1-max. (0–65000 operations) COSP1 =
Close/Open set point 2-mid. (0–65000 operations)
COSP2 =
Close/Open set point 3-min. (0–65000 operations)
COSP3 =
kA Interrupted set point 1-min.
(0.00–999.00 kA primary in 0.01-kA steps)
KASP1 =
kA Interrupted set point 2-mid.
(0.00–999.00 kA primary in 0.01-kA steps)
KASP2 =
kA Interrupted set point 3-max.
(0.00–999.00 kA primary in 0.01-kA steps)
KASP3 =
Notes:
➤ COSP1 must be set greater than COSP2.
➤ COSP2 must be set greater than or equal to COSP3.
➤ KASP1 must be set less than KASP2.
➤ If COSP2 is set the same as COSP3, then KASP2 must be set the same as KASP3.
➤ KASP3 must be set at least 5 times (but no more than 100 times) the KASP1 setting value.
Synchronized Phasor Settings (see Appendix L: SEL Synchrophasors)
Synchronized Phasor Measurement (Y, N) EPMU =
Courtesy of NationalSwitchgear.com
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