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L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
GROUPED ELEMENTS
CHAPTER 5: SETTINGS
5
AR CO-ORD PICKUP DELAY
— If the setting of the overcurrent detector is less than the load current, then it picks up during a
normal re-energization of the line. This setting delays the assertion of the
LINE PICKUP OP
operand, allowing the recovery of
the line voltage to block the scheme.
AR CO-ORD RESET DELAY
— This setting extends the assertion of the line pickup output when autoreclose coordination is not
bypassed.
TERMINAL OPEN
— This setting allows the line pickup element to be armed from a status signal (such as breaker position)
rather than from current and voltage. The FlexLogic operand assigned to this setting indicates that the terminal is opened.
It can be derived by combining the status of several devices in a FlexLogic equation.
AR ACCELERATE
— This setting provides zone 1 extension functionality if external autoreclosure is employed.
LINE PICKUP BLOCK
— Assertion of the FlexLogic operand assigned to this setting blocks operation of the line pickup
element.
LINE PICKUP EVENTS
— This setting enables and disables the logging of line pickup events in the sequence of events
recorder.
Figure 5-107: Line pickup logic
