4–380
889 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL
FLEXLOGIC
CHAPTER 4: SETPOINTS
NOTE
NOTE:
If Phase to Phase mode is selected in this protection element, in “EVENT DESCRIPTION”
column, “Phase A” becomes “Voltage AB”, “Phase B” becomes “Voltage BC” and “Phase C”
becomes “Voltage CA”.
Some operands can be re-named by the user. These are the names of the breakers in the
breaker control feature, the ID (identification) of contact inputs, the ID of virtual inputs, and
the ID of virtual outputs. If the user changes the default name or ID of any of these
operands, the assigned name will appear in the relay list of operands. The default names
are shown in the FlexLogic Operands table above.
Table 4-38: 889 FlexLogic Operators
Switch Control
SW[X] Open Cmd
SW[X] Close Cmd
SW[X] Remote Open
SW[X] Remote Close
SW[X] Rem Blk Open
SW[X] Rem Blk Close
SW[X] Rem Blk Open Byp
SW[X] Rem Blk Close Byp
Local or Remote Open command initiated to Switch [X]
Local or Remote Close command initiated to Switch [X]
Remote Open command is initiated to Switch [X]
Remote Close command is initiated to Switch [X]
The Open command to Switch [X] is blocked
The Close command to Switch [X] is blocked
The block open signal for Switch [X] is bypassed
The block close signal for Switch [X] is bypassed
[X] - the element number.
Tab Pushbuttons
TAB PB [X] ON
TAB PB [X] OFF
TAB PB [X] PRESS
Tab Pushbutton [X] is ON
Tab Pushbutton [X] is OFF
Tab Pushbutton [X] is Pressed Down
Targets
Active Target
At least one target is detected active
Thermal Overload
Protection
Thermal OL PKP
Thermal OL OP
The thermal overload element has picked up
The thermal overload element has operated
Trip Bus
Trip Bus 1 PKP
Trip Bus 1 OP
Trip Bus 2 to 6
Asserted when the trip bus 1 element picks up
Asserted when the trip bus 1 element operates
The same set of operands as per Trip Bus 1
Trip Circuit Monitoring
TripCoil Mon 1 PKP
TripCoil Mon 1 OP
Trip Coil 1 Monitoring element has picked up.
Trip Coil 1 Monitoring element has operated for an amount of time greater
than the Close Circuit Monitor Pick-up Delay Time.
Virtual Input 1 to 32
VI # ON
VI # OFF
# – any virtual input number
Virtual Outputs 1 to 32
VO # ON
VO # OFF
Flag is set, logic = 1
Flag is set, logic = 0
Volts per Hertz 1
V/Hz 1 PKP
V/Hz 1 OP
The Volts per Hertz element 1 has picked up
The Volts per Hertz element 1 has operated
Volts per Hertz 2
V/Hz 2 PKP
V/Hz 2 OP
The Volts per Hertz element 2 has picked up
The Volts per Hertz element 2 has operated
VT Fuse Failure
VT Fuse Fail1 OP
VT Fuse1 V Loss
VT fuse failure detector 1 has operated
VT fuse 1 failure has lost voltage signals (V2 below 10% AND V1 below 5%
of nominal)
ELEMENT
OPERANDS
EVENT DESCRIPTION
TYPE SYNTAX
DESCRIPTION
NOTES
Editor
INSERT
Insert a parameter in an
equation list.
DELETE
Delete a parameter from
an equation list.
End
END
The first END
encountered signifies
the last entry in the list of
processed FlexLogic™
parameters.
