Siemens SIPROTEC 4 7SD80, Руководство пользователя

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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.
Information List
No. Information Type of
Informa-
tion Comments
- I Admd> LV I A dmd>
- I Bdmd> LV I B dmd>
- I Cdmd> LV I C dmd>
- I1dmd> LV I1dmd>
- |Pdmd|> LV |Pdmd|>
- |Qdmd|> LV |Qdmd|>
- |Sdmd|> LV |Sdmd|>
- |PF|< LV |Power Factor|<
273 SP. I A dmd> OUT Set Point Phase A dmd>
274 SP. I B dmd> OUT Set Point Phase B dmd>
275 SP. I C dmd> OUT Set Point Phase C dmd>
276 SP. I1dmd> OUT Set Point positive sequence I1dmd>
277 SP. |Pdmd|> OUT Set Point |Pdmd|>
278 SP. |Qdmd|> OUT Set Point |Qdmd|>
279 SP. |Sdmd|> OUT Set Point |Sdmd|>
285 SP. PF(55)alarm OUT Set Point 55 Power factor alarm
Energy
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.
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
Table 2-13 can be read out. The signs of the operating values depend on
the setting at address 1107
P,Q VORZEICHEN
(see Section 2.17.3 Measurement During Operation under
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 Operational metered values
Measured Values primary
W
p
+ Real power, output kWh, MWh, GWh
W
p
– Real power, input kWh, MWh, GWh
W
q
+ Reactive power, output kVARh, MVARh, GVARh
W
q
– Reactive power, input kVARh, MVARh, GVARh
2.17.8.2
2.17.9
2.17.9.1
Functions
2.17 Auxiliary Functions
SIPROTEC 4, 7SD80, Manual 191
E50417-G1100-C474-A2, Edition 02.2018