Emerson Automation Experts - Connecting with the People behind the Technologies and Expertise - Emerson Automation Experts

Avoiding Low Voltage Electrical Asset Outages

Early in my career as a freshly-minted electrical engineer in the mid-1980s, I worked on projects on offshore oil & gas production platforms in the Gulf of Mexico. These platforms required turbine or reciprocating engine gas generators with diesel engine backup for when gas was not available from the production stream.

Low voltage (LV) distribution systems, typically at 480VAC were used to power the pumps, compressors, motor control centers, lighting, communications and other electrical needs for the platform. The corrosive moist and salty air from the Gulf caused failures in the distribution systems every so often.

I mention all this because of a Power Magazine article, Temperature Monitoring Protects Low-Voltage Assets, by Emerson’s Jay Ganson. Technology has come a long way from back then and continuous monitoring is now available to help avoid electrical failures. Jay opened the article noting:

LV electrical distribution has a history of under-investment, which leaves companies exposed to an ever-increasing risk of failures and unplanned outages—events that could be prevented with available monitoring technologies. Asset failures always prove costly to operators and are far costlier than implementing technology to provide continuous monitoring.

Costs of unplanned outages not only includes financial costs, but:

Continue Reading

Radar Level Measurement for Cryogenic Tank Storage

If you are unfamiliar with cryogenic processes such as those found liquefied natural gas (LNG) plants, then you may be unaware of some of their unique challenges. One big one is overfill prevention and inventory measurement for cryogenic storage tanks. A cryogenic tank is not opened during operation and normally not accessed for maintenance purposes during its entire operating lifespan.

A 4:35 YouTube video, Inventory Measurement Solutions for Full Containment Cryogenic Storage Tanks highlights some measurement challenges and how radar level measurement helps to solve them.

Continue Reading

Diagnosing Gearbox Defects

In earlier posts, Emerson’s Robert Skeirik highlighted how PeakVue impact detection analytics technology can provide early warning of bearing failure in time to plan and schedule maintenance before unplanned downtime occurs. These analytics help drive overall reliability improvement key performance indicators (KPIs).

I came across a recently published whitepaper, Confirming Gearbox Defect Using Waveform & PeakVue Technology, which highlights another issue with rotating machinery that this diagnostic in combination with time-series waveform analysis can help identify.

Gearbox defects may not exhibit repetitive, periodic defects like ball bearing defects exhibit. Analyzing vibration in the time domain helps provide insights beyond the typical frequency spectral analysis.

Here is some case study information from the whitepaper:

Continue Reading

Continuous Pressure Relief Valve and Rupture Disk Monitoring

Wireless sensors, as a part of the Industrial Internet of Things (IIoT) set of technologies, are finding new applications due to their ease of installation and commissioning. Many of these applications fall outside of the traditional monitoring and control applications managed by the industrial control systems in the manufacturing or production facility. These applications can provide new ways to improve safety, reliability, energy & emissions and production.

One great example from a safety and energy & emissions standpoint is pressure relief valve wireless monitoring. Instead of the traditional method of periodic manual inspection of the pressure relief valves (PRVs) and rupture disks (RDs) throughout the process, wireless sensors can provide continuous monitoring that enables your staff to take proactive corrective actions and develop efficient maintenance schedules. These wireless sensors and the Plantweb Insight Pressure Relief Valve application are elements in Emerson’s Plantweb digital ecosystem.

Depending on the type of pressure relief valve being monitored, wireless sensing technologies can include acoustic, valve position, and differential pressure sensors. Wireless acoustic sensing technology is suitable for all types of PRVs and RDs. Wireless valve position monitors are a good fit for direct spring valves, such as the Crosby J-Series PRVs, and wireless differential pressure sensors for high- and low-pressure pilot valves such as Anderson Greenwood pilot-operated PRVs.

In an excellent Valve magazine article, Monitoring Pressure Relief Devices, Emerson’s Marcio Donnangelo describes the different types of pressure relief valves, rupture disks, pressure safety valves (PSVs), relief valves with rupture disks as well as when to apply the different types of wireless sensing technologies.

He concludes:

Continue Reading

5 Questions for Cybersecurity Expert Jaime Foose

Emerson’s Jaime Foose joins our continuing podcast series, 5 Questions for an Emerson Expert. Jaime is an ICS cyber security expert, Director of Security Solutions and Lifecycle Shared Services. She helps power producers and water & wastewater utilities with programs and processes to improve their cyber defenses and the ongoing health of their distributed control systems & operational technology (OT).

Emerson's Jaime Foose

We hope you enjoy this podcast episode and will subscribe to the Emerson Automation Experts podcast series on your iOS or Android device.


Continue Reading