Schweitzer Engineering Laboratories SEL-311C - Table 14.12 Default SEL-221 H Mask Logic Setting for MPT

14.23
Date Code 20060320 Instruction Manual SEL-311C Relay
Application Settings for SEL-221 Series Relays
SEL-221H to SEL-311C Settings Conversion Guide
For example, the factory default setting for MPT in the SEL-221H is shown in
Table 14.12. From Table 14.10, the equivalent SEL-311C SEL
OGIC control
equation to MPT is TRCOMM. Constructing the logical OR of the equivalent
of each element selected in the MPT mask from Table 14.11 gives:
TRCOMM = M2P * !32QF + 67G2 + M2P + IN101
Since IN101 (DT) is also included in the DTT tripping logic equation, it can
be eliminated from the TRCOMM equation. The term M2P * !32QF + M2P
simplifies to just M2P. So,
TRCOMM = M2P + 67G2
which is the default SEL
OGIC control equation for TRCOMM when APP =
221H.
When setting APP = 221H, the SEL-311C automatically sets the following
SEL
OGIC control equations. Change the settings just as you would change the
Mask Logic settings in an SEL-221H to customize the relay logic.
Default Tripping Logic Equations
TR = M1P + M2PT + M3PT + 67G1 + 67G2T + 67G3T + 51GT + OC + SV2T
TRCOMM = M2P + 67G2
TRSOTF = M1P + M2P + 67G1 + 67G2 + 51GT + 50P1
DTT = IN101 + SV4 * !IN103
Default Output Contact Logic Equations
OUT101 = TRIP
OUT102 = TRIP
OUT103 = CLOSE
OUT104 = SV1T
OUT105 = LOP
OUT106 = WFC
OUT107 = M1P * !32QF
SELOGIC Variables Equations
SV1 = KEY
SV2 = 50P2 * ILOP
SV3 = 0 (Not used)
SV4 = 0 (Reserved for SELOGIC equivalent to MBT)
Table 14.12 Default SEL-221H Mask Logic Setting for MPT
1ABC 2ABC 3ABC 4ABC LOP 50H 50M 50L
01000000
51NT 67N1 67N2 67N3 51NP Z1P Z2P Z3P
00100010
Z2PT Z3PT Z3RB KEY 50MF PTEE ECTT DF
00000000
ALRM TRIP TC DT 52BT WFC Z2GT Z3GT
00110000