GE G60 Instruction Manual page 424

FLEXLOGIC
FLEXELEMENT 1 +IN
5
this setting is set to "Off." For proper operation of the element, at least one input must be selected. Otherwise, the element
does not assert its output operands.
FLEXELEMENT 1 –IN
set to "Off." For proper operation of the element, at least one input must be selected. Otherwise, the element does not
assert its output operands. This input is used to invert the signal if needed for convenience, or to make the element
respond to a differential signal, such as for a top-bottom oil temperature differential alarm. The element does not operate
if the two input signals are of different types, for example if one tries to use active power and phase angle to build the
effective operating signal.
The element responds directly to the differential signal if the
element responds to the absolute value of the differential signal if this setting is set to "Absolute." Sample applications for
the "Absolute" setting include monitoring the angular difference between two phasors with a symmetrical limit angle in
both directions, monitoring power regardless of its direction, or monitoring a trend.
The element responds directly to its operating signal—as defined by the
FLEXELEMENT 1 INPUT MODE
rate of change of its operating signal if the
FLEXELEMENT 1 dt UNIT
FLEXELEMENT 1 DIRECTION
figure explains the application of the
settings.
5-210
Figure 5-107: FlexElement logic
— This setting specifies the first (non-inverted) input to the FlexElement. Zero is assumed as the input if
— Specifies the second (inverted) input to the FlexElement. Zero is assumed as the input if this setting is
settings—if the
FLEXELEMENT 1 COMP MODE
FLEXELEMENT 1 COMP MODE
and settings specify how the rate of change is derived.
FLEXELEMENT 1 dt
— Enables the relay to respond to either high or low values of the operating signal. The following
FLEXELEMENT 1 DIRECTION
setting is set to "Signed" The
FLEXELEMENT 1 INPUT MODE
FLEXELEMENT 1 +IN
setting is set to "Level." The element responds to the
setting is set to "Delta." In this case, the
, , and
FLEXELEMENT 1 PICKUP
G60 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
, and
FLEXELEMENT 1 –IN
FLEXELEMENT 1 HYSTERESIS