Siemens Reyrolle Software SIGRA Fault Record Evaluation

Quick analysis after a line fault is crucial. Engineers must identify the cause quickly and take corrective action. This process helps restore the original line condition and minimize downtime. Siemens Reyrolle SIGRA 4 software helps engineers analyze disturbance records from digital protection devices and fault recorders. The software displays and measures data in different views based on the analysis requirement.

SIGRA 4 shows measured variables in time-signal displays. It also supports vector diagrams, circle diagrams, bar charts for harmonics, and data tables. Using recorded fault data, the software calculates additional values such as missing quantities in three-wire systems, impedances, outputs, and symmetrical components.

Two measuring cursors allow engineers to evaluate fault traces quickly and accurately. Users can also add additional fault records. For example, engineers can drag and drop records from the opposite end of a line to compare signals easily. SIGRA 4 can display signals from multiple fault records in one diagram. The software automatically synchronizes them to a common time base. This feature helps engineers analyze faults more effectively.

Fault location is another critical aspect of disturbance analysis. Accurate fault location saves valuable time during field inspection. SIGRA 4 supports this process through its offline fault localization feature. The software works with all fault records in the COMTRADE file format, making it compatible with many protection devices. Users can also test the software with a 30-day trial version to explore its full capabilities.

FURTHER FEATURES

• 6 types of diagrams: time signal representation (usual), circle diagram (e.g. for R/X), vector diagram (reading of angles), bar charts (e.g. for visualization of harmonics), table (lists values of several signals at the same instant) and fault locator (shows the location of a fault)
• Calculate additional values such as positive impedances, r.m.s. values, symmetric components, vectors, etc.
• Two measurement cursors, synchronized in each view
• Powerful zoom function
• User-friendly configuration via drag & drop
• Innovative signal configuration in a clearly-structured matrix
• Time-saving user profiles, which can be assigned to individual relay types or series
• Addition of other fault records to the existing fault record
• Synchronization of several fault records to a common time basis
• Easy documentation by copying diagrams to documents of other MS Windows programs
• Offline fault localization

HARDWARE REQUIREMENTS

• Pentium 4 with 1-GHz processor or similar
• 1 GB of RAM (2 GB recommended)
• Graphic display with a resolution of 1024 x 768 (1280 x 1024
• recommended)
• 50 MB free storage space on the hard disk
• DVD-ROM drive
• Keyboard and mouse

SOFTWARE REQUIREMENTS

• MS Windows XP Professional
• MS Windows Server 2008 R2 used as a Workstation computer
• MS Windows 7 Professional and Enterprise Ultimate

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