Non-Volatile Latches - GE N60 Instruction Manual
Network stability and synchrophasor measurement system
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CHAPTER 5: SETTINGS
Unit
RTDs
SENSITIVE DIR POWER
(Sns Dir Power)
SOURCE CURRENT
SOURCE ENERGY
(Positive and Negative Watthours,
Positive and Negative Varhours)
SOURCE POWER
SOURCE THD & HARMONICS
SOURCE VOLTAGE
SYNCHROCHECK
(Max Delta Volts)
— This setting defines the pickup–dropout relation of the element by specifying the width of the
FLEXELEMENT 1 HYSTERESIS
hysteresis loop as a percentage of the pickup value as shown in the FlexElement Direction, Pickup, and Hysteresis diagram.
— Specifies the time unit for the setting
FLEXELEMENT 1 dt UNIT
is set to "Delta."
FLEXELEMENT 1 COMP MODE
— Specifies duration of the time interval for the rate of change mode of operation. This setting is
FLEXELEMENT 1 dt
applicable only if
FLEXELEMENT 1 COMP MODE
— Specifies the pickup delay of the element.
FLEXELEMENT 1 PKP DELAY
— Specifies the reset delay of the element.
FLEXELEMENT 1 RST DELAY
5.6.8 Non-volatile latches
SETTINGS FLEXLOGIC NON-VOLATILE LATCHES LATCH 1(16)
LATCH 1
The non-volatile latches provide a permanent logical flag that is stored safely and do not reset upon restart after the relay
is powered down. Typical applications include sustaining operator commands or permanently blocking relay functions,
such as Autorecloser, until a deliberate interface action resets the latch.
— This setting characterizes Latch 1 to be Set- or Reset-dominant.
LATCH 1 TYPE
— If asserted, the specified FlexLogic operands 'sets' Latch 1.
LATCH 1 SET
— If asserted, the specified FlexLogic operand 'resets' Latch 1.
LATCH 1 RESET
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
Description
BASE = 100°C
P
= maximum value of 3 × V
BAS
E
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
BAS
E
P
= maximum value of V
BASE
BASE
BASE = 1%
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
FLEXELEMENT 1 dt
is set to "Delta."
LATCH 1
FUNCTION: Disabled
LATCH 1 ID:
NV Latch 1
LATCH 1 TYPE:
Reset Dominant
LATCH 1 SET:
Off
LATCH 1 RESET:
Off
LATCH 1
TARGET: Self-reset
LATCH 1
EVENTS: Disabled
× I
for the +IN and –IN inputs of the sources configured
BASE
BASE
× I
for the +IN and –IN inputs
BASE
. This setting is applicable only if
Range: Disabled, Enabled
Range: up to 20 alphanumeric characters
Range: Reset Dominant, Set Dominant
Range: FlexLogic operand
Range: FlexLogic operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
FLEXLOGIC
5
5-187
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