Schweitzer Engineering Laboratories SEL-351A - Page 365

Date _______________
Date Code 20080213 Instruction Manual SEL-351A Relay
SET.13
of 32
SEL-351A Settings Sheets
Relay Settings (Serial Port Command SET and Front Panel)
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, 0.25–100.00 A {5 A nom.},
0.05–20.00 A {1 A nom.}) (see Figure 5.3)
50LP =
SELOGIC Control Equation Variable Timers (See Figure 7.23 and Figure 7.24)
(Number of timer pickup/dropout settings dependent on preceding enable setting ESV = 1–16.)
SV1 Pickup Time (0.00–999999.00 cycles in 0.25-cycle steps) SV1PU =
SV1 Dropout Time (0.00–999999.00 cycles in 0.25-cycle steps)
SV1DO =
SV2 Pickup Time (0.00–999999.00 cycles in 0.25-cycle steps)
SV2PU =
SV2 Dropout Time (0.00–999999.00 cycles in 0.25-cycle steps)
SV2DO =
SV3 Pickup Time (0.00–999999.00 cycles in 0.25-cycle steps)
SV3PU =
SV3 Dropout Time (0.00–999999.00 cycles in 0.25-cycle steps)
SV3DO =
SV4 Pickup Time (0.00–999999.00 cycles in 0.25-cycle steps)
SV4PU =
SV4 Dropout Time (0.00–999999.00 cycles in 0.25-cycle steps)
SV4DO =
SV5 Pickup Time (0.00–999999.00 cycles in 0.25-cycle steps) SV5PU =
SV5 Dropout Time (0.00–999999.00 cycles in 0.25-cycle steps)
SV5DO =
SV6 Pickup Time (0.00–999999.00 cycles in 0.25-cycle steps)
SV6PU =
SV6 Dropout Time (0.00–999999.00 cycles in 0.25-cycle steps)
SV6DO =
SV7 Pickup Time (0.00–16000.00 cycles in 0.25-cycle steps)
SV7PU =
SV7 Dropout Time (0.00–16000.00 cycles in 0.25-cycle steps)
SV7DO =
SV8 Pickup Time (0.00–16000.00 cycles in 0.25-cycle steps)
SV8PU =
SV8 Dropout Time (0.00–16000.00 cycles in 0.25-cycle steps)
SV8DO =
SV9 Pickup Time (0.00–16000.00 cycles in 0.25-cycle steps)
SV9PU =
SV9 Dropout Time (0.00–16000.00 cycles in 0.25-cycle steps)
SV9DO =
SV10 Pickup Time (0.00–16000.00 cycles in 0.25-cycle steps)
SV10PU =
Courtesy of NationalSwitchgear.com