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
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