Siemens siprotec 7SA522 - Settings; Operations; Oscillographic Fault Records

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SIPROTEC

4 Devices

4-4 7SA522 Manual

C53000-G1176-C119-2

4.1.3 Settings

The devices in the SIPROTEC

4 family are delivered with default settings. After set-

tings are made for specific applications, the devices are suitable for direct use in power

systems.

The windows-based DIGSI

4 software program offers an application-oriented inter-

face with thorough guidance for quick and simple setting of the devices.

DIGSI

4 is installed on a normal personal computer. For local use, the PC is connect-

ed to the operating serial interface on the front panel of the device.

4.1.4 Operations

All on-site operations of a SIPROTEC

4 device can be done with DIGSI

4. Exam-

ples of operations are switching, retrieval of information, or changing of setting groups.

These operations can also be performed using the operator control panel on the front

of the SIPROTEC

4 device.

4.1.5 Oscillographic Fault Records

DIGSI

4 can also be used to retrieve oscillographic fault data captured by the

SIPROTEC

4 device. The DIGRA

4 software program can then be used to provide

several different graphical representations of the captured signals. DIGRA

4 also cal-

culates additional values on the basis of the captured signals. The program presents

the data in analogue curves with time base, phasor diagrams, locus diagrams, and

harmonic charts.

Note:

All SIPROTEC

4 devices also operate with the proven star coupler (e.g. 7XV5). Thus,

for simple applications, you can retrieve all information from your office or while on the

road.

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