P.3.50
SEL-411L Relay Protection Manual Date Code 20151029
Protection Functions
87L Differential Elements
87T3P2 Bit 3 transmitted on Serial Port 2 SELOGIC control equation NA
87T4P2 Bit 4 transmitted on Serial Port 2 SEL
OGIC control equation NA
87R11PU Pickup debounce timer for Bit 1 received on Port 1 0–20 ms, in 4 ms increments 0 ms
87R11DO Dropout debounce timer for Bit 1 received on Port 1 0–20 ms, in 4 ms increments 0 ms
87R21PU Pickup debounce timer for Bit 2 received on Port 1 0–20 ms, in 4 ms increments 0 ms
87R21DO Dropout debounce timer for Bit 2 received on Port 1 0–20 ms, in 4 ms increments 0 ms
87R31PU Pickup debounce timer for Bit 3 received on Port 1 0–20 ms, in 4 ms increments 0 ms
87R31DO Dropout debounce timer for Bit 3 received on Port 1 0–20 ms, in 4 ms increments 0 ms
87R41PU Pickup debounce timer for Bit 4 received on Port 1 0–20 ms, in 4 ms increments 0 ms
87R41DO Dropout debounce timer for Bit 4 received on Port 1 0–20 ms, in 4 ms increments 0 ms
87R12PU Pickup debounce timer for Bit 1 received on Port 2 0–20 ms, in 4 ms increments 0 ms
87R12DO Dropout debounce timer for Bit 1 received on Port 2 0–20 ms, in 4 ms increments 0 ms
87R22PU Pickup debounce timer for Bit 2 received on Port 2 0–20 ms, in 4 ms increments 0 ms
87R22DO Dropout debounce timer for Bit 2 received on Port 2 0–20 ms, in 4 ms increments 0 ms
87R32PU Pickup debounce timer for Bit 3 received on Port 2 0–20 ms, in 4 ms increments 0 ms
87R32DO Dropout debounce timer for Bit 3 received on Port 2 0–20 ms, in 4 ms increments 0 ms
87R42PU Pickup debounce timer for Bit 4 received on Port 2 0–20 ms, in 4 ms increments 0 ms
87R42DO Dropout debounce timer for Bit 4 received on Port 2 0–20 ms, in 4 ms increments 0 ms
Table 3.17 87L User-Programmable Communications Bits Settings (Serial Channels) (Sheet 2 of 2)
Setting Description Range Default
Table 3.18 87L User-Programmable Communications Bits (Serial Channels)
Relay Word Bits
Name Description
87T1P1 Bit 1 transmitted on Serial Port 1
87T2P1 Bit 2 transmitted on Serial Port 1
87T3P1 Bit 3 transmitted on Serial Port 1
87T4P1 Bit 4 transmitted on Serial Port 1
87T1P2 Bit 1 transmitted on Serial Port 2
87T2P2 Bit 2 transmitted on Serial Port 2
87T3P2 Bit 3 transmitted on Serial Port 2
87T4P2 Bit 4 transmitted on Serial Port 2
87R01P1 Bit 1 received on Serial Port 1
87R02P1 Bit 2 received on Serial Port 1
87R03P1 Bit 3 received on Serial Port 1
87R04P1 Bit 4 received on Serial Port 1
87R01P2 Bit 1 received on Serial Port 2
87R02P2 Bit 2 received on Serial Port 2
87R03P2 Bit 3 received on Serial Port 2
87R04P2 Bit 4 received on Serial Port 2
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