Tracking Frequency; Frequency Rate Of Change; Frequency Out-Of-Band Accumulation; Flexelements - GE G60 Instruction Manual

CHAPTER 6: ACTUAL VALUES
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 the selection of the reference source with the
FREQUENCY AND PHASE REFERENCE
System section of chapter 5 for details.

6.4.6 Frequency rate of change

ACTUAL VALUES  METERING  FREQUENCY RATE OF CHANGE 1(4)
 FREQUENCY RATE
 OF CHANGE 1
The metered frequency rate of change for the frequency rate of change elements is shown here.

6.4.7 Frequency out-of-band accumulation

ACTUAL VALUES  METERING  FREQUENCY OOB ACCUMULATION
 FREQUENCY OOB
 ACCUMULATION
The frequency out-of-band accumulation metered values are displayed to the nearest percent as a ratio of the present
accumulation to the user-specified limit. Note that this value can be greater than 100%.

6.4.8 FlexElements

ACTUAL VALUES  METERING  FLEXELEMENTS  FLEXELEMENT 1(16)
 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
BREAKER ACC ARCING AMPS
(Brk X Acc Arc Amp A, B, and C)
BREAKER ARCING AMPS
(Brk X Arc Amp A, B, and C)
DCmA
G60 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL
SYNCHROCHECK 1 PROJ

SYNSCP D_PH: 0.0°
TRACKING FREQUENCY:

60.00 Hz
setting in the
SETTINGS  SYSTEM SETUP  POWER SYSTEM
FREQUENCY RATE OF

CHANGE1: 0.00 Hz/s
FREQUENCY OOB BAND 1

ACCUMULATION: 0.0%
FREQUENCY OOB BAND 2

ACCUMULATION: 0.0%

FREQUENCY OOB BAND 7

ACCUMULATION: 0.0%
FLEXELEMENT 1

OpSig: 0.000
Description
2
BASE = 2000 kA × cycle
2
BASE = 1 kA × cycle
BASE = maximum value of the DCMA INPUT MAX setting for the two transducers configured
under the +IN and –IN inputs.
METERING
menu. See the Power
6-23
6