Condition monitoring for wind turbines
The mechanical forces to which wind turbines are subjected, the continual increase in the size of these turbines, and the rapidly growing number of wind turbines make it necessary for…
Knowledge
The importance of brand-independent vibration analysis for wind turbines
The importance of vibration measurements can overlap for OEMs (Original Equipment Manufacturers) and wind turbine owners, but there are also some differences in their perspectives and priorities. Factors such as…
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…
What does the API Standard 670 state about overspeed detection systems?
The API Standard 670 is an industry standard and describes the minimum requirements for a machine protection system (MPS). This includes, measuring radial shaft vibration, casing vibration, axial shaft position,…
How to maintain the SIL-rating of a machine protection system
The SIL-rating of a SIL loop degrades over time. Therefore the safety integrated function (SIF) of the safety instrumented system (SIS) must be tested with a certain frequency, which is usually determined…
4 first checks when installing, commissioning and troubleshooting an overspeed protection system
It is essential to verify the functioning of every individual component of an overspeed protection system. This can be done during its installation, commissioning / turnarounds or troubleshooting. As this…
6 causes of overspeed on rotating machinery
Overspeed situations on rotating machinery should be prevented at all costs. Even the slightest overspeed situation could lead to mechanical stress that causes rotating machine parts to deform. More serious…
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…
5 ways SpeedSys® changes the overspeed market
SpeedSys 200 & 300 are SIL-rated overspeed protection systems for rotating machinery. The systems are highly adapted to growing market demands and challenge overly complex rack-based systems. This article describes…
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…