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Advanced Engineering 2021

NEC Birmingham(B40 1NT)

03/11/2021 - 04/11/2021

Join us in our 12th and most important edition to date, as we invite engineers and management from all (more)

Machinery protection system meets demands of toughest audits for turbine upgrades

Machinery protection system meets demands of toughest audits for turbine upgrades

The ability to quickly identify issues affecting the performance of rotating plant as well as being able to optimise dynamic behaviour is vital to all plant engineers. Established and proven monitoring systems like the Sentry G3 machinery protection system from Sensonics combine the flexibility of hardware in a single, easy-to-install and easy-to-use module type for all sensors and so is a highly effective solution. The system is compliant to API 670 so meets the most stringent protection requirements, in addition to meeting IEC 61508 up to SIL-3 standards.

The Sentry G3 system is being continually developed to meet the ongoing challenges and also those arising from specific applications, such as for gas turbine upgrades at major UK nuclear power stations. For these applications ‘Emphasis’ audits are considered to be the most complex and rigorous (for software) and users will be assured that Sentry G3 meets these standards.

The Emphasis method assesses a device’s compliance with IEC 61508 for functional safety standards, along with other requirements specific to the UK nuclear industry. It provides end-users with the confidence that both the hardware and software components in these protection systems meet the required high levels of design, testing and production which minimises the risk of systematic failures.

Advanced features include vibration, position and speed parameter trending facilities, including log and view of up to 60 days of data, ‘look back’ at trends and alarms, plus download data for further analysis in Excel. It is also now possible to directly view proximity probe gap and vibration transducer bias voltages, to verify correct transducer operation and calibration.

Sensonics says the Sentry G3 single module concept minimises the need for spares holdings helping to reduce ongoing maintenance costs whilst also lowering the risk in retrofitting applications where the need to interface monitoring systems quickly and correctly with previously installed sensors is key.

The system is fully software programmable and upgradable which ensures adaptability moving forward as inevitably application requirements change. It’s also easy to expand, simply by adding additional G3 monitors. It offers excellent channel density with up to 24 measurement channels housed in a compact 3U x 19” rack mounted format which can halve the space needed on existing installations. Multiple outputs are available on the back of the rack for up to 3 alarm levels and 2 analogue outputs per channel. Dual redundant Modbus communications to a module level provide a robust communication system, while the in-built LCD display offers readings, sensor integrity voltages, trending and FFT, all of which confirm the accuracy of the installation.


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