5-102
F650 DIGITAL BAY CONTROLLER
GEK-106310-AF
5.4 PROTECTION ELEMENTS
CHAPTER 5: SETPOINTS
Angle:
This setting specifies the size of the blocking region as shown on the Load Encroachment
Characteristic diagram and applies to the positive sequence impedance.
Pickup Delay:
This setting specifies the delay for the trip of Load Encroachment element. After this time
expires the signal Load Encroachment Operate is asserted.
Reset Delay:
This setting specifies the time that the signal Pickup and operate are asserted after trip
conditions have been removed.
Snapshot events:
The snapshot event setting enables or disables the snapshot event generation for this
element.
The Load Encroachment actual values can be viewed at
Actual> Status > Control Elements > Load Encroachment
Table 5-70: Load encroachment status
The block signals for the Load Encroachment element can be viewed at:
Actual> Status > Protection > Protection Blocks
:
Table 5-71: Load encroachment blocks
There are three load encroachment type of signals:
Load Encroachment Block:
Writing status. When this signal is asserted the Load Encroachment function is blocked until
this signal is eliminated and the positive sequence voltage is above the settable level programmed in the Min. Voltage
setting.
Load Encroachment pickup:
Reading state. This state is asserted when the conditions for the operate are fulfilled.
Load Encroachment operate:
Reading state. This state is asserted after the conditions for the operate are fulfilled at least
during the period of time programmed in the pickup delay setting.
LOAD ENCROACHMENT STATUS
LOAD ENCR1 PKP
LOAD ENCR1 OP
LOAD ENCR2 PKP
LOAD ENCR2 OP
LOAD ENCR3 PKP
LOAD ENCR3 OP
LOAD ENCROACHMENT BLOCKS
LOAD ENCR1 BLOCK
LOAD ENCR2 BLOCK
LOAD ENCR3 BLOCK
Summary of Contents for F650
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