On our knowledgeblog our experts write interesting articles on new developments, experiences and educational cases.
Explained: voting structures of overspeed protection systems
Voting, regarding overspeed protection systems, can be defined by the number of safety loops that should switch to the safe state when an overspeed situation is detected. The desirable voting…
Why periodic proof-tests of overspeed protection systems are essential
Overspeed protection systems have a critical function in the balance between the safety and availability of rotating machinery. These protection systems should be proof-tested periodically to verify the system logic…
How Istec realizes vibration protection and condition monitoring at a power plant
Recently we have published a series of articles about (remote) condition monitoring. We described 4 reasons to install a remote vibration monitoring system (1) and listed the necessary hardware for…
5 ways SpeedSys changes the overspeed market
February 2021 marked the global launch of Istec’s revolutionary SIL rated overspeed protection system: the SpeedSys 200. The system is highly adapted to growing market demands and challenges overly complex…
Application note: The challenge of monitoring vibration and rod drop
Explained: how and when to monitor vibration and rod displacement Reciprocating compressors are among the most critical machinery in industries such as (petro)chemical, power and oil and gas. As opposed…
Case study: DCS migration at a petrochemical plant
Migrating a DCS during online process conditions at a petrochemical plant in the Netherlands Challenge The customer wanted to migrate their Honeywell Hiway system to the modern Honeywell Enhanced High Performance…
3 ways of monitoring your pumps for cavitation
Cavitation is a widely known problem that occurs to pumps and results in significant damage and other undesirable consequences. To avoid damage a pump should be monitored for the formation…
A modern approach for overspeed protection
The leading standard for rotating machinery (API 670) states that (critical) rotating machinery requires a state-of-the-art overspeed protection system. The availability of electrical overspeed protection systems has grown ever since…
4 reasons why overspeed protection systems should not be overly complex
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…
3 types of target objects for speed measurements
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…