GE D90 Plus Instruction Manual page 296

CONTROL ELEMENTS
288
Open Pole Remote Current Pickup
Range: 0.000 to 30.000 pu in steps of 0.001
Default: 0.050 pu
This setting specifies the pickup level for the remote-end current estimated by the relay
as the local current compensated by the calculated charging current. The latter is
calculated based on the local voltages and the capacitive reactances of the line. This
setting is relevant if open pole condition at the remote end of the line is to be sensed and
utilized by the relay (via the
Events
Range: Enabled, Disabled
Default: Disabled
This setting enables and disables the logging of open pole detector events in the
sequence of events recorder.
The open pole detector logic is shown below.
Figure 224: Open pole detector scheme logic, sheet 1 of 2
operand).
OPEN POLE REM OP
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 7: PROTECTION