Functions
2.17 Additional Functions
SIPROTEC, 7SD610, Manual
C53000-G1176-C145-6, Release date 02.2011
257
2.17.8.4 Information List
2.17.9 Energy
Metered values for active and reactive power are determined in the background by the processor system. They
can be called up at the front of the device, read out via the operating interface using a PC with DIGSI, or trans-
ferred to a central master station via the system interface.
2.17.9.1 Energy Metering
7SD610 integrates the calculated power which is then made available with the measured values. The compo-
nents as listed in table 2-15 can be read out. The signs of the operating values depend on the setting at address
1107 P,Q sign (see Section 2.17.4 under margin heading „Display of Measured Values“).
It is important to remember that 7SD610 is, above all, a protection device. The accuracy of the metered values
depends on the instrument transformers (normally protection core) and the device tolerances. The metering is
therefore not suited for tariff purposes.
The counters can be reset to zero or any initial value (see also SIPROTEC 4 System Description).
Table 2-15 Operational metered values
2.17.9.2 Setting Notes
Retrieving parameters
The SIPROTEC System Description describes in detail how to read out the statistical counters via the device
front panel or DIGSI. The values are added up in direction of the protected object, provided the direction was
set as „forward“ (address 201).
No. Information Type of In-
formation
Comments
- FltRecSta IntSP Fault Recording Start
4 >Trig.Wave.Cap. SP >Trigger Waveform Capture
30053 Fault rec. run. OUT Fault recording is running
Measured values Primary
W
p
+ Active power, output kWh, MWh, GWh
W
p
– Active power, input kWh, MWh, GWh
W
q
+ Reactive power, output kVARh, MVARh, GVARh
W
q
– Reactive power, input kVARh, MVARh, GVARh
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