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Undisturbed operation due to voltage monitoring

Power Quality as an important quality feature

In steel works and metallurgical plants, downtime and repair costs due to the power quality disturbances become an increasing challenge Continuous monitoring of the power quality together with the process data forms the basis for undisturbed operation and the detection of possible failure causes at an early stage. Continuous monitoring of the power network parameters together with the process data forms the basis for faultless operation and the detection of possible failure.

For this reason, a leading steel producer monitors, among other things, the power quality parameters at several transformer stations (from 110KV to 30KV) in order to demonstrate compliance with contractually defined limit values according to IEC50160 standard. In addition, power flows and system perturbations are systematically recorded to optimize the workload of the transformers. In addition, process states from the automation systems were used for the evaluation.

Business Benefits

and gapless recording

acquisition of energy and process data

Standard conformity
according to IEC61000-4-30 Class A (ed.3)

The Technology

Due to the measurement with ibaPQU-S and further analysis of the measured values with ibaAnalyzer, excessive values of the individual harmonics were detected as well as unbalanced phase load. These parameters could be reduced by optimizing the workload of existing transformers and lines. Since then, the grid has been permanently monitored, which allows an early intervention in the network dynamics.

By combining them with data from PLCs, you are able to react quickly to changes in process chain. Thus, the required product quality is guaranteed and high downtime and repair costs as a result of poor network quality could be reduced.

A weekly report with appropriate certification information is generated for the documentation backup.

"Line synchronous, high sampling rate of up to 40kHz allows detection of all grid anomalies - no event remains undetected."

Thomas Caramagno
PQ Expert,
iba AG

iba Products

ibaPQU-S and modules
ibaPQU - Power Quality Unit

The Power Quality Unit ibaPQU-S can be used for high-accuracy monitoring of the power quality in energy grids. For this purpose, characteristics of electric power quality are calculated according to the standard and are acquired and recorded by ibaPDA.

Measuring value acquisition - ibaPDA

As the central core of the iba system, ibaPDA has proven itself as one of the most versatile data acquisition systems for maintenance and production for many years. Among the many powerful features of ibaPDA are asset-agnostic acquisition, high-speed synchronous archiving, and real-time streaming analytics.

Historical data - ibaHD-Server

ibaHD-Server empowers users with the ability to perform long-term analytics while rapidly visualizing trends and events from months to milliseconds. Easily archive large time-synchronized data sets, even from multiple ibaPDA systems. Querying events provides immediate access to failure-mode and root-cause discovery.

Analysis software - ibaAnalyzer

ibaAnalyzer is characterized by its broad capability for analyzing and evaluating data. The application is intuitive and offers an advanced set of functions. The license for analyzing measurement files, which have been generated with the iba system, is free of charge.

Automated generation of reports - ibaAnalyzer-Reportgenerator

In ibaAnalyzer the user has with the Reportgenerator a powerful tool at his disposal, that permits to generate individual reports flexibly. The Reportgenerator offers efficient options for creating templates and gives the right form to the analysis result.

Power quality monitoring and fault analysis in a steel mill

Faultless operation due to voltage monitoring scheme
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