GE D60 Instruction Manual page 454

6.3 METERING
The metered values for real, reactive, and apparent power, as well as power factor, are displayed in this menu. The "SRC
1" text will be replaced by whatever name was programmed by the user for the associated source (see

TEM SETUP SIGNAL SOURCES
g) ENERGY METERING
PATH: ACTUAL VALUES
 ENERGY
 SRC 1
The metered values for real and reactive energy are displayed in this menu. The "SRC 1" text will be replaced by whatever
name was programmed by the user for the associated source (see
Because energy values are accumulated, these values should be recorded and then reset immediately prior to changing
6
CT or VT characteristics.
h) FREQUENCY METERING
PATH: ACTUAL VALUES
 FREQUENCY
 SRC 1
The metered frequency values are displayed in this menu. The "SRC 1" text will be replaced by whatever name was pro-
grammed by the user for the associated source (see
is measured via software-implemented zero-crossing detection of an AC signal. The signal is either a
SOURCE FREQUENCY
Clarke transformation of three-phase voltages or currents, auxiliary voltage, or ground current as per source configuration
(see the
SYSTEM SETUP
final frequency measurement is passed through a validation filter that eliminates false readings due to signal distortions and
transients.
6-16
SRC 1 POWER FACTOR
MESSAGE
3φ:
SRC 1 POWER FACTOR
MESSAGE
φa:
SRC 1 POWER FACTOR
MESSAGE
φb:
SRC 1 POWER FACTOR
MESSAGE
φc:
).
 
METERING SOURCE SRC 1
SRC 1 POS WATTHOUR:
0.000
SRC 1 NEG WATTHOUR:
MESSAGE
0.000
SRC 1 POS VARHOUR:
MESSAGE
0.000
SRC 1 NEG VARHOUR:
MESSAGE
0.000
 
METERING SOURCE SRC 1
SRC 1 FREQUENCY:
0.00 Hz
 settings). The signal used for frequency estimation is low-pass filtered. The
POWER SYSTEM
D60 Line Distance Protection System
1.000
1.000
1.000
1.000

ENERGY
Wh
Wh
varh
varh

SETTINGS

FREQUENCY

SETTINGS SYSTEM SETUP
6 ACTUAL VALUES
SETTINGS

SYSTEM SETUP SIGNAL SOURCES
 ).
SIGNAL SOURCES

SYS-
).
GE Multilin