Blog Posts Tagged:
API 670

VM600Mk2 “one module does it all” concept explained

Like the VM600, the new VM600Mk2 system is designed as a centralized system, with a well-thought-out modular structure allowing smart function combinations that enable complex systems to be built from a minimum number of modules. From system configuration to retrofit, the VM600Mk2 "one module does it all" concept focuses on reducing the total cost of […]

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General API 670 requirements for machinery protection systems

The American Petroleum Institute’s standard for machinery protection systems (API Standard 670) is a widely recognised industry standard, used actively by regulators and operators around the globe. The API 670 standard describes the minimum requirements for a machinery protection system (MPS) that measures shaft and casing vibration, shaft position, shaft rotational speed, piston rod drop, […]

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Safety integrity levels for overspeed detection system (ODS)

During normal operation, a turbine’s own speed control system regulates the rotational speed of the machine. However, in the event of a problem with the turbine and/or its control system, an overspeed detection system (ODS) provides an isolated layer of protection that will automatically and immediately initiate a shutdown of the machine should this become necessary. In this way, the ODS increases safety, making it easier to meet regulatory requirements, while reducing operating costs such as maintenance and insurance.

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Key aspects to consider when selecting an overspeed detection system

According to the API standard 670 for Machinery Protection Systems, an electronic overspeed detection system (ODS) consists of speed sensors, power supplies, output relays, signal processing, and alarm/shutdown/integrity logic. Its function is to continuously measure shaft rotational speed and activate its output relays when an overspeed condition is detected.   API 670 defines multiple requirements […]

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Overspeed detection system should always be an isolated layer of protection

An Overspeed Detection System (ODS) has one job and one job only – detect an overspeed event and initiate an emergency trip sequence.

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