GE 850 Instruction Manual page 160

COMMON SETPOINTS
CAUTION:
FASTPATH:
4–4
• DIRECTION: The
<ELEMENT_NAME> DIRECTION
features which are subject to control from a directional element. The range is
"Disabled", "Forward", and "Reverse". If set to "Disabled", the element is allowed to
operate for current flow in any direction. There is no supervision from the directional
element. If set to "Forward", the OC element is allowed to operate when the fault is
detected by the directional element in forward direction. In this mode, the OC element
does not operate for fault in reverse direction. If set to "Reverse", the OC element is
allowed to operate when the fault is detected in reverse direction, and does not
operate in forward direction.
• RESET: Selection of an Instantaneous or a Timed reset is provided by this setting. If
Instantaneous reset is selected, the element resets instantaneously providing the
quantity drops below 97 to 98% of the PKP level before the time for operation is
reached. If Timed reset is selected, the time to reset is calculated based on the reset
equation for the selected inverse curve.
• BLOCK: The
<ELEMENT_NAME> BLOCK
FlexLogic operands, which when active, blocks the feature from running.
• EVENTS: The
<ELEMENT_NAME> EVENTS
"Disabled". If set to "Enabled", the events associated with the pickup, operation, or
other conditions of the feature are recorded in the Event Recorder.
• TARGETS: The
<ELEMENT_NAME> TARGETS
Reset", or "Latched". If set to "Self-Reset", or "Latched", the targets associated with the
pickup, operation, or another condition of the feature are displayed on the screen of
the 850 relay. The targets disappear from the screen when "Self-Reset" is selected,
and the conditions are cleared. The targets stay on the screen, when "Latched" is
selected, and the conditions are cleared.
To ensure the settings file inside the relay is updated, wait 30 seconds after a setpoint
change before cycling power.
When IP addresses are changed and sent as a Settings file the unit reboots twice.
CHAPTER 4: ABOUT SETPOINTS
setpoint is available for overcurrent
setpoint selects an operand from the list of
setpoint can be set to "Enabled", or
setpoint can be set to "Disabled", "Self-
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL