8–64 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
BUS TRANSFER CHAPTER 8: CONTROL
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The #2 CLOSE OUTPUT relay is blocked if Transfer is enabled, but blocked while the breaker
is connected (racked-in). If breaker closing is required during maintenance, Transfer must
be disabled.
EVENTS
Range: Disabled, Enabled
Default: Enabled
TARGETS
Range: Disabled, Self-reset, Latched
Default: Self-reset
850 RELAY – INCOMER 2
When INCOMER 2 function is selected the following display is available:
INC 2 CB CONNECTED
Range: Off, Any FlexLogic operand
Default: Off
The setpoint selects the FlexLogic operand, digital input, virtual input or remote input
used to inhibit transfer if Incomer breaker 2 cannot be used to pass current from the
source to the load (for example when the breaker is in rack-out or test position). This
setpoint also provides the condition for “Selected to Trip” breaker logic, FlexLogic
operand INC2 CB CON & CLSD required for Incomer 2 Circuit Breaker transfer logic, Bus
Tie Circuit Breaker transfer logic, and for blocking #2 close relay.
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For non-draw-out breakers without associated disconnect switches, this setpoint must be
set as ON.
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