Information List; Energy; Energy Metering - Siemens SIPROTEC 4 7SD80 Manual

Here you can insert new limit values via the Information Catalog which are subsequently linked to the meas-
ured value to be monitored using CFC.
This view also allows you to change the default settings of the limit values under Properties.
The settings for limit values must be in percent and usually refer to nominal values of the device.
For more details, see the SIPROTEC 4 System Description and the DIGSI CFC Manual.
2.17.8.2

Information List

No. Information
- I Admd>
- I Bdmd>
- I Cdmd>
- I1dmd>
- |Pdmd|>
- |Qdmd|>
- |Sdmd|>
- |PF|<
273 SP. I A dmd>
274 SP. I B dmd>
275 SP. I C dmd>
276 SP. I1dmd>
277 SP. |Pdmd|>
278 SP. |Qdmd|>
279 SP. |Sdmd|>
285 SP. PF(55)alarm

Energy

2.17.9
Metered values for real and reactive power are determined by the processor system in the background. 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

7SD80 integrates the calculated power as a function of time and then provides the results under Measured
Values. The components as listed in
the setting at address 1107 P,Q VORZEICHEN (see Section
margin heading "Display of Measured Values").
Take into consideration that 7SD80 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 2-13
W
W
W
W
SIPROTEC 4, 7SD80, Manual
E50417-G1100-C474-A2, Edition 02.2018
Type of
Informa-
tion
LV
LV
LV
LV
LV
LV
LV
LV
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
Table 2-13
Operational metered values
Measured Values
+ Real power, output
p
– Real power, input
p
+ Reactive power, output
q
– Reactive power, input
q
Comments
I A dmd>
I B dmd>
I C dmd>
I1dmd>
|Pdmd|>
|Qdmd|>
|Sdmd|>
|Power Factor|<
Set Point Phase A dmd>
Set Point Phase B dmd>
Set Point Phase C dmd>
Set Point positive sequence I1dmd>
Set Point |Pdmd|>
Set Point |Qdmd|>
Set Point |Sdmd|>
Set Point 55 Power factor alarm
can be read out. The signs of the operating values depend on
2.17.3 Measurement During Operation
kWh, MWh, GWh
kWh, MWh, GWh
kVARh, MVARh, GVARh
kVARh, MVARh, GVARh
Functions
2.17 Auxiliary Functions
under
primary
191