Schweitzer Engineering Laboratories SEL-321 - Page 209

Date Code 20011026 Applications 5-33
SEL-321/321-1 Instruction Manual
SETTINGS SHEET Page 7 OF 10
FOR THE SEL-321/321-1 RELAY Date
(5 A
NOMINAL RELAY)
Miscellaneous Scheme Settings
Pole-Discordance Enable: (Y/N) EPOLD = N
Single-Pole Trip Pole-Discordance Time Delay (TDPU): (0 - 8000 cycles) SPPDD =
Single-Pole Trip Enable: (Y/N/Y1/N1) ESPT = N
Single-Pole Open Enable: (Y/N) ESPO = N
Single-Pole Open Time Delay (TDDO): (0 - 8000 cycles) SPOD =
Three-Pole Open Time Delay (TDDO): (0 - 8000 cycles) 3POD = 1.50
Enable Stub Protection: (Y/N) ESTUB = Y
Stub Protection Time Delay (TDPU): (0 - 2000 cycles) 50MFD = 20.00
Trip Unlatch Option: (N, 1, 2, 3, 4) TULO = 3
Miscellaneous Timers
Minimum Trip Duration Time Delay (TDDO): (0 - 2000 cycles) TDURD = 9.00
Trip During Open Pole Time Delay (TDDO): (0 - 8000 cycles) TOPD = 0.00
Relay Element X Time Delay Pickup (TDPU): (0 - 8000 cycles) TXPU = 0.00
Relay Element X Time Delay Dropout (TDDO): (0 - 8000 cycles) TXDO = 0.00
Relay Element Y Time Delay Pickup (TDPU): (0 - 8000 cycles) TYPU = 0.00
Relay Element Y Time Delay Dropout (TDDO): (0 - 8000 cycles) TYDO = 0.00
Relay Element Z Time Delay Pickup (TDPU): (0 - 8000 cycles) TZPU = 0.00
Relay Element Z Time Delay Dropout (TDDO): (0 - 8000 cycles) TZDO = 0.00
Instantaneous Trip Time Declaration Delay (TDPU): (0 - 60 cycles) ITTD = 5.00
Logic Variables
LOGIC V = NA
LOGIC W = NA
LOGIC X = NA
LOGIC Y = NA
LOGIC Z = NA
Tripping Logic
MTCS = M2P + Z2G
MTU = M1P + Z1G + M2PT + Z2GT + 51NT + 51QT + 50MF
MTO = M1P + M2P + Z1G + Z2G + 50H