Functions
2.23 Auxiliary Functions
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
362
2.23.8
Energy Metering
Metered values for active and reactive energy are determined by the device. They can be called up at the front
of the device, read out via the operating interface using a PC with DIGSI, or transferred to a central master
station via the system interface.
2.23.8.1 Description
Metered Values for Active and Reactive Energy
Metered values of the real power W
p
and reactive power (W
q
) are acquired in kilowatt, megawatt or gigawatt
hours primary or in kVARh, MVARh or GVARh primary, separately according to the input (+) and output (–), or
capacitive and inductive. The measured-value resolution can be configured. The signs of the measured values
appear as configured in address
1108
P,Q sign
(see Section „Display of Measured Values“).
2.23.8.2 Setting Notes
Setting of parameter for meter resolution
Parameter
8315
MeterResolution
can be used to maximize the resolution of the metered energy values by
Factor 10
or
Factor 100
compared to the
Standard
setting.
2.23.8.3 Settings
2.23.8.4 Information List
Addr.
Parameter
Setting Options
Default Setting
Comments
8315
MeterResolution
Standard
Factor 10
Factor 100
Standard
Meter resolution
No.
Information
Type of In-
formation
Comments
-
Meter res
IntSP_Ev
Reset meter
888
Wp(puls)
PMV
Pulsed Energy Wp (active)
889
Wq(puls)
PMV
Pulsed Energy Wq (reactive)
916
Wp
∆
=
-
Increment of active energy
917
Wq
∆
=
-
Increment of reactive energy
924
WpForward
MVMV
Wp Forward
925
WqForward
MVMV
Wq Forward
928
WpReverse
MVMV
Wp Reverse
929
WqReverse
MVMV
Wq Reverse
www
. ElectricalPartManuals
. com