Schweitzer Engineering Laboratories SEL-351 - Page 391

SETTINGS SHEET Page 11 of 24
FOR THE SEL-351 RELAY Date
RELAY SETTINGS (SERIAL PORT COMMAND SET AND FRONT PANEL)
Date Code 20001006
DCUB disabling time delay (0.25 - 16000.00 cycles in 0.25-cycle steps) UBDURD =
DCUB duration time delay (0.00 - 16000.00 cycles in 0.25-cycle steps) UBEND =
DCB Trip Scheme Settings (See Figure 5.14)
(Make the following settings if preceding enable setting ECOMM = DCB)
Zone (level) 3 reverse pickup time delay (0.00 - 16000.00 cycles in 0.25-cycle
steps)
Z3XPU =
Zone (level) 3 reverse dropout extension (0.00 - 16000.00 cycles in 0.25-cycle
steps)
Z3XD =
Block trip receive extension (0.00 - 16000.00 cycles in 0.25-cycle steps) BTXD =
Level 2 phase short delay (0.00 - 60.00 cycles in 0.25-cycle steps) 67P2SD =
Level 2 neutral ground short delay (0.00 - 60.00 cycles in 0.25-cycle steps) 67N2SD =
Level 2 residual ground short delay (0.00 - 60.00 cycles in 0.25-cycle steps) 67G2SD =
Level 2 negative-sequence short delay (0.00 - 60.00 cycles in 0.25-cycle
steps)
67Q2SD =
Demand Metering Settings (See Figures 8.11 and 8.13)
(Make the following settings, whether preceding enable setting EDEM = THM or ROL)
Time constant (5, 10, 15, 30, 60 minutes) DMTC =
Phase pickup
(OFF, 0.50 - 16.00 A {5 A nom.}, 0.10 - 3.20 A {1 A nom.})
PDEMP =
Neutral ground pickup - channel IN
(OFF, 0.500 - 16.000 A {5 A nom.}, 0.100 - 3.200 A {1 A nom.},
0.005 - 0.160 A {0.05 A nom.})
NDEMP =
Residual ground pickup
(OFF, 0.50 - 16.00 A {5 A nom.}, 0.10 - 3.20 A {1 A nom.})
GDEMP =
Negative-sequence pickup
(OFF, 0.50 - 16.00 A {5 A nom.}, 0.10 - 3.20 A {1 A nom.})
QDEMP =
Other Settings
(Make the following settings — they have no controlling enable setting)
Minimum trip duration time (4.00 - 16000.00 cycles in 0.25-cycle steps)
(see Figure 5.1)
TDURD =
Close failure time delay (OFF, 0.00-16000.00 cycles in 0.25-cycle steps)
(see Figure 6.1)
CFD =
Three-pole open time delay (0.00 - 60.00 cycles in 0.25-cycle steps)
(usually set for no more than a few cycles; see Figure 5.3)
3POD =
Load detection phase pickup (OFF, 0.25 - 100.00A{5 A nom.},
0.05 - 20.00 A {1 A nom.}) (see Figure 5.3)
50LP =
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