iba LAT, S.A.

Transient Fault Recorder

Transient fault recorders are used for monitoring plants continuously for well known signal disturbances. The data are only recorded in case of a failure. For this purpose, possible failure conditions are defined as different triggers and the data are only recorded in a pre-defined period preceding and following the failure.

Acquiring dynamic processes rapidly

With the iba system, fast transient signal transitions can be acquired and recorded with an appropriate acquisition hardware in the range from 1 kHz to 100 kHz at a high resolution. As with this application the measurement data are to be recorded only in case of failure, ibaPDA initially stores the data in an internal buffer.

When a failure condition occurs, the data are recorded in a triggered way. In this process, the time preceding and following the failure situation is stored in a measurement file for a subsequent analysis. A trigger pool allows to manage conveniently hundreds of individual triggers.

Integration into the control system

In case of a failure, a notification is sent to a supervisory control system via the standardized IEC61850 transfer protocol for protection and control technology. If in a complex system, several thousands of signals have to be measured synchronously at a high acquisition rate, several ibaPDA systems are coupled using FO-cables and data are recorded with sample synchronity (multistation functionality).

The data recorded with a Transient fault recorder are analyzed with ibaAnalyzer. Thus, the cause of the failure situation can be determined and short-term counter-measures can be taken if needed.

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