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Control During Operation

7-277SA6 Manual

C53000-G1176-C156-2

The recorded data read into the PC memory are first shown in full on the screen. Cur-

rent, and possibly voltage, for each phase and the ground are represented separately.

The fault number, data and time, network, and feeder are also displayed.

Representation of primary or secondary quantities can be selected. The base values

for currents and voltages are the nominal values of the transformers (CTs or VTs). An

identical scale is used for all currents, relative to the largest occurring current value,

and for all voltages, relative to the largest occurring voltage value.

Figure 7-27 SIGRA 4 — Diagrams in the four possible views — example

During configuration any signal can be selected in its properties to be displayed in the

fault record. (See chapter 5.2.3.)

Further details about the many possibilities that SIGRA 4 offers can be found in the

SIGRA handbook (Order No. E50417–H1176–C070).

7.1.4.2 Saving the Fault Records

Storage of Fault

Recording Data

Oscillographic records that are received from the device are not automatically saved

in the PC. The data can, however, be saved in files.

For more details, see the DIGSI

4 Operating Handbook, Order No. E50417–H1176–

C097, Section 9.4.

The oscillographic records stored in the device do not need to be erased, since the

data are stored in a revolving buffer. The oldest data are automatically overwritten by

the newest data.

Siemens siprotec 7SA6 User Manual

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