Overspeed protection systems have one of the most important functions regarding safety measures for rotating machinery. As such, these systems require advanced safety functions to detect overspeed and excessive acceleration…
To measure the rotational speed of a shaft, it is necessary to have the right target for the contactless-sensing speed sensors to be able to generate an accurate signal. In…
There are several overspeed detection systems (ODS) on the market that are equipped with an on-board function generator for online test purposes, and this feature is frequently found in ODS…
End-users that operate (critical) rotating machinery have a legal obligation to implement a suitable and verifiable safety instrumented system (SIS). Safety Integrity Level (SIL, IEC 61508), one of the more…
In the past, overspeed turbine protection systems were often designed by the turbine OEMs themselves as part of the mechanical system. These mechanical protection systems are still in use, especially…
Rotating machinery such as turbines, pumps and compressors are continuously subjected to major mechanical forces. As most of these machines are critical to the process, systems are implemented with protection…
Choosing the right speed sensor for an application is of crucial importance for an accurate and reliable measurement. After all, the signal of the sensor is the input for an…
The ST5484E is a SIL2 certified vibration transmitter for vibration measurements on bearing housings and is suitable for rotating machinery and reciprocating compressors. With the certification, the transmitter is applicable…
There are different system structures to facilitate machine vibration protection – one more advanced than the other. Which method is used depends on the application and the criticality of it.…
In 1939, T.C. Rathbone published a paper called ‘Vibration Tolerance‘ in the magazine Power Plant Engineering. The ideas in this paper are considered the foundation of modern industrial vibration measurements.…
Monitoring machine vibrations affords greater control over the safety and availability of the equipment. It reduces unscheduled downtime and potential damage or failure can be resolved at an early stage.…
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