GE D60 Instruction Manual page 299

Ur series line distance protection system
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5 SETTINGS
Table 5–20: FLEXELEMENT BASE UNITS
SOURCE CURRENT
SOURCE ENERGY
(Positive and Negative Watthours,
Positive and Negative Varhours)
SOURCE POWER
SOURCE VOLTAGE
SYNCHROCHECK
(Max Delta Volts)
Z
BASE
The
FLEXELEMENT 1 HYSTERESIS
hysteresis loop as a percentage of the pickup value as shown in the FlexElement direction, pickup, and hysteresis diagram.
The
setting specifies the time unit for the setting
FLEXELEMENT 1 DT UNIT
is set to "Delta". The
FLEXELEMENT 1 COMP MODE
rate of change mode of operation. This setting is applicable only if
This
FLEXELEMENT 1 PKP DELAY
specifies the reset delay of the element.
GE Multilin
I
= maximum nominal primary RMS value of the +IN and –IN inputs
BASE
E
= 10000 MWh or MVAh, respectively
BASE
P
= maximum value of V
BASE
BASE
V
= maximum nominal primary RMS value of the +IN and –IN inputs
BASE
V
= maximum primary RMS value of all the sources related to the +IN and –IN inputs
BASE
Z
= PhaseVTSecondary / PhaseCTSecondary, where PhaseVTSecondary and
BASE
PhaseCTSecondary are the secondary nominal voltage and the secondary nominal current of the
distance source. In case multiple CT inputs are summed as one source current and mapped as
the distance source, use the PhaseCTSecondary value from the CT with the highest primary
nominal current.
Distance source is specified in setting under
.
GROUP 1(6) > DISTANCE
PhaseVTSecondary and PhaseCTSecondary are specified in setting under
SETUP > AC INPUTS
.
setting defines the pickup–dropout relation of the element by specifying the width of the
FLEXELEMENT 1 DT
setting specifies the pickup delay of the element. The
D60 Line Distance Protection System
 I
for the +IN and –IN inputs
BASE
SETTINGS > GROUPED ELEMENTS > SETTING
. This setting is applicable only if
FLEXELEMENT 1 dt
setting specifies duration of the time interval for the
is set to "Delta".
FLEXELEMENT 1 COMP MODE
FLEXELEMENT 1 RST DELAY
5.5 FLEXLOGIC
SETTINGS > SYSTEM
setting
5
5-165

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