Non-Volatile Latches - GE G30 Instruction Manual

5.5 FLEXLOGIC
Table 5–13: FLEXELEMENT BASE UNITS
SENSITIVE DIR POWER
(Sns Dir Power)
SOURCE CURRENT
SOURCE ENERGY
(Positive and Negative Watthours,
Positive and Negative Varhours)
SOURCE POWER
SOURCE VOLTAGE
SYNCHROCHECK
(Max Delta Volts)
VOLTS PER HERTZ
XFMR DIFFERENTIAL CURRENT
(Xfmr Iad, Ibd, and Icd Mag)
XFMR DIFFERENTIAL
HARMONIC CONTENT
(Xfmr Harm2 Iad, Ibd, and Icd Mag)
(Xfmr Harm5 Iad, Ibd, and Icd Mag)
XFMR RESTRAINING CURRENT
(Xfmr Iar, Ibr, and Icr Mag)
The
FLEXELEMENT 1 HYSTERESIS
hysteresis loop as a percentage of the pickup value as shown in the FlexElement direction, pickup, and hysteresis diagram.
5
The
FLEXELEMENT 1 DT UNIT
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.

PATH: SETTINGS FLEXLOGIC
 LATCH 1

The non-volatile latches provide a permanent logical flag that is stored safely and will not reset upon reboot after the relay
is powered down. Typical applications include sustaining operator commands or permanently block relay functions, such as
Autorecloser, until a deliberate interface action resets the latch. The settings element operation is described below:
• LATCH 1 TYPE: This setting characterizes Latch 1 to be Set- or Reset-dominant.
• LATCH 1 SET: If asserted, the specified FlexLogic operands 'sets' Latch 1.
• LATCH 1 RESET: If asserted, the specified FlexLogic operand 'resets' Latch 1.
5-130
P = maximum value of 3 × V
BASE
configured for the sensitive power directional element(s).
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
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
BASE = 1.00 pu
I = maximum primary RMS value of the +IN and -IN inputs
BASE
(CT primary for source currents, and transformer reference primary current for transformer
differential currents)
BASE = 10%
I = maximum primary RMS value of the +IN and -IN inputs
BASE
(CT primary for source currents, and transformer reference primary current for transformer
differential currents)
setting defines the pickup–dropout relation of the element by specifying the width of the
setting specifies the time unit for the setting
is set to "Delta". The
FLEXELEMENT 1 DT
setting specifies the pickup delay of the element. The


NON-VOLATILE LATCHES

LATCH 1
FUNCTION: Disabled
LATCH 1 TYPE:
MESSAGE
Reset Dominant
LATCH 1 SET:
MESSAGE
Off
LATCH 1 RESET:
MESSAGE
Off
LATCH 1
MESSAGE
TARGET: Self-reset
LATCH 1
MESSAGE
EVENTS: Disabled
G30 Generator Protection System
× I for the +IN and –IN inputs of the sources
BASE BASE
× I for the +IN and –IN inputs
BASE BASE
FLEXELEMENT 1 dt
setting specifies duration of the time interval for the
FLEXELEMENT 1 COMP MODE
FLEXELEMENT 1 RST DELAY
5.5.8 NON-VOLATILE LATCHES

LATCH 1(16)
Range: Disabled, Enabled
Range: Reset Dominant, Set Dominant
Range: FlexLogic operand
Range: FlexLogic operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
5 SETTINGS
. This setting is applicable only if
is set to "Delta".
setting
GE Multilin