Intelligent Monitoring of Surge Protection — Act before a Component Fails

Related Vendors

DÜPERTHAL Sicherheitstechnik GmbH & Co. KG

TURCK GmbH

ProMinent GmbH

PHOENIX CONTACT Deutschland GmbH

SoH Calculation

One of Impulse Check’s core functions is to calculate the SoH for the individual modes of protection of the monitored Phoenix Contact surge protective device. The SoH indicates the remaining capability of the protective device, and recommends replacement where necessary — in fact, it does so reliably and before the device fails. The corresponding calculations are based on the data about surge currents and transient overvoltages, which were collected by Impulse Check since the installation of the SPD. The individual events are analyzed for their damaging potential regarding the SPD in question, and the accumulated stress resulting from numerous events during the service life is also taken into account.

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To do so, special algorithms are used that, for one thing, consider the various ageing mechanisms of the different surge protective components and, for another thing, use data from product development and standardized testing. Thanks to the cloud-based analysis, this intelligent evaluation can be continuously developed and fine-tuned. The approach also allows for future applications of Machine Learning technology.

The Impulse Check Proficloud application enables the user to access the data measured by Impulse Check. For each conductor of the monitored power supply system, the detected surge currents are listed — including relevant characteristic quantities, such as amplitude, electric charge, and specific energy. The individual events can each be visualized by means of an integrated plotting feature, or be exported as a CSV data set. The data about the surge currents are determining for the calculation of the SoH — moreover, they provide information on the occurrence of overvoltages of atmospheric origin, or those caused by switching operations on inductive loads.

User-defined Notifications

For the detected transient overvoltages, a comprehensive analytical tool is available, allowing users to create individualized tables and histograms. This feature of Impulse Check can also be used to perform an EMC analysis of the plant regarding high-frequency interference. The time-specific mapping allows correlations between the operating states of individual system parts and the occurrence of electromagnetic interferences to be established.

Another important feature of Impulse Analytics is the possibility of configuring user-defined notifications. All kinds of events can be reported to any customized mailing list. Furthermore, a detailed status report on the current state of the monitored SPD can be created at the push of a button, or sent at regular intervals. The continuous calculation of the SoH in combination with the status report for documentation purposes eliminate the need for manual testing of surge protective devices as part of periodic inspections of lightning protection systems in accordance with IEC 62305-3.

To make the data of the Impulse Check system available also for control systems and other applications, Impulse Analytics features a Rest interface that can be used to read out all status notifications and events. Thanks to this open architecture, the system is already primed for future developments and new digital business models.

Summary: Impulse Check allows for real-time monitoring of surge protective devices, and provides transparency of their SoH. Moreover, it features profound analytical options regarding the electromagnetic compatibility within systems. The ability to act before a component fails, which results in the significant improvement of system availability and efficiency, is the outcome.

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* C. Rittinghaus, Product Marketing Surge Protection, Business Unit Trabtech, Phoenix Contact, Blomberg/Germany.

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