Tracking Frequency; Frequency Rate Of Change; Flexelements - GE L30 Instruction Manual

METERING
If synchrocheck or a setting is "Disabled," the corresponding actual values menu item does not display.

6.4.5 Tracking frequency

ACTUAL VALUES  METERING  TRACKING FREQUENCY
 TRACKING FREQUENCY

The tracking frequency displays here. The frequency is tracked based on configuration of the reference source. The
TRACKING FREQUENCY
at all terminals. If currents are below 0.125 pu, then the
6

6.4.6 Frequency rate of change

ACTUAL VALUES  METERING  FREQUENCY RATE OF CHANGE 1(2)
 FREQUENCY RATE
 OF CHANGE 1
The metered frequency rate of change for the frequency rate of change elements is shown here.

6.4.7 FlexElements

ACTUAL VALUES  METERING  FLEXELEMENTS  FLEXELEMENT 1(8)
 FLEXELEMENT 1

The operating signals for the FlexElements are displayed in pu values using the following definitions of the base units.
Table 6-2: FlexElement base units
Base unit
87L SIGNALS
(Local IA Mag, IB, and IC)
(Diff Curr IA Mag, IB, and IC)
(Terminal 1 IA Mag, IB, and IC)
(Terminal 2 IA Mag, IB and IC)
6-22
SYNCHROCHECK 1

V1 MAG: 0.000 kv
SYNCHROCHECK 1

V1 ANG: 0.0°
SYNCHROCHECK 1

V2 MAG: 0.000 kV
SYNCHROCHECK 1

V2 ANG: 0.0°
SYNCHROCHECK 1 PROJ

V2 MAG: 0.000 kV
SYNCHROCHECK 1 PROJ

V2 ANG: 0.0°
SYNCHROCHECK 1 PROJ

DELTA_PHASE: 0.0°
SYNCHROCHECK 1 PROJ

SYNSCP D_PH: 0.0°
TRACKING FREQUENCY:

60.00 Hz
is based on positive sequence current phasors from all line terminals and is synchronously adjusted
FREQUENCY RATE OF

CHANGE1: 0.00 Hz/s
FLEXELEMENT 1

OpSig:
Description
I = maximum primary RMS value of the +IN and –IN inputs
BASE
(CT primary for source currents, and 87L source primary current for line differential currents)
is used.
NOMINAL FREQUENCY
0.000
L30 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
CHAPTER 6: ACTUAL VALUES