GE L90

5-210 L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
FLEXLOGIC CHAPTER 5: SETTINGS
5
A FlexElement is a universal comparator used to monitor any analog actual value calculated by the relay or a net
difference of any two analog actual values of the same type. The effective operating signal can be treated as a signed
number or its absolute value can be used.
FlexElements run every half power cycle (every four protection passes).
The element can be programmed to respond either to a signal level or to a rate-of-change (delta) over a pre-defined period
of time. The output operand is asserted when the operating signal is higher than a threshold or lower than a threshold, as
per your choice.

FLEXELEMENT 1 INPUT
MODE: SIGNED
Range: SIGNED, ABSOLUTE

FLEXELEMENT 1 COMP
MODE: LEVEL
Range: LEVEL, DELTA

FLEXELEMENT 1
DIRECTION: OVER
Range: OVER, UNDER

FLEXELEMENT 1
PICKUP: 1.000 pu
Range: –90.000 to 90.000 pu in steps of 0.001

FLEXELEMENT 1
HYSTERESIS: 3.0%
Range: 0.1 to 50.0% in steps of 0.1

FLEXELEMENT 1 dt
UNIT: Milliseconds
Range: Milliseconds, Seconds, Minutes

FLEXELEMENT 1 dt:
20
Range: 20 to 86400 in steps of 1

FLEXELEMENT 1 PKP
DELAY: 0.000 s
Range: 0.000 to 65.535 s in steps of 0.001

FLEXELEMENT 1 RST
DELAY: 0.000 s
Range: 0.000 to 65.535 s in steps of 0.001

FLEXELEMENT 1 BLK:
Off
Range: FlexLogic operand

FLEXELEMENT 1
TARGET: Self-reset
Range: Self-reset, Disabled, Latched

FLEXELEMENT 1
EVENTS: Disabled
Range: Disabled, Enabled