Controls – Combined Cycle Journal

How the GT exhaust-thermocouple correction coefficient came to be

7EA Users Group, Controls, Frame 6 / By scottschwieger

LEGACY CONTROLS FORUM, NO. 5 IN A SERIES By Luke Williams, PE, consultant www.geLegacyGasTurbineSupport.com Editor’s note. This article is based on material presented by the author in his training courses on gas- and steam-turbine controls to explain the reason for the algorithm described and how it works. Email clukewilliams@mindspring.com and ask to be notified of […]

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Damage report on a Mark I SCR static-exciter failure

7EA Users Group, Controls, Frame 6 / By scottschwieger

LEGACY CONTROLS FORUM, NO. 6 IN A SERIES By Luke Williams, PE, consultant www.geLegacyGasTurbineSupport.com An MS7001B gas turbine with Mark I Speedtronic™ controls and SCR static exciter-regulator experienced overcurrent damage to its exciter on a normal startup. Operators think the overexcitation event lasted for several minutes. However, an overexcitation alarm was not received and the

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Advanced controls strategy and fundamentals @ PPCUG 2024

Controls / By scottschwieger

“Controls Items for Consideration” collects round-robin thoughts and ideas on Mark series controls from one specialist representing one of the largest owner/operators in the nation. Topics include logic for verifying valve functionality prior to unit operation, end of support for HMI (human-machine interface) Windows Server 2012 R2 Operating System and network switches, simulators, lube oil

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Life-long learning abounds across five user group conferences @ Power Users 2024

CCUG, Controls, Generator Users Group, HRSGs, STUG / By scottschwieger

The question these days becomes why wouldn’t you send as many of your plant staff as possible to the Power Users Combined Conference, comprising the Combined Cycle Users Group (CCUG), Generator Users Group (GUG), Steam Turbine Users Group (STUG), Power Plant Controls Users Group (PPCUG), and the Low Carbon Peer Group? As amply exhibited in the

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Take control of your next DCS upgrade

Controls / By scottschwieger

Whether you’re running legacy GE “Mark” platforms or overseeing the transition to modern digital I&C systems, the Power Plant Controls Users Group (PPCUG) is the place to gain actionable knowledge and peer-tested insights on controls reliability, cybersecurity, diagnostics, and upgrade paths. This year’s PPCUG track at the Power Users Combined Conference—August 25–28, 2025 in Washington,

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Improvise, adapt, overcome: Navigate power’s new frontiers

CCUG, Controls, Generator Users Group, Generators, STUG / By scottschwieger

In a period of accelerating change across the power generation industry—shaped by decarbonization goals, shifting market pressures, and the realities of an aging fleet—the 2025 Power Users Combined Conference presents a timely opportunity to learn, adapt, and prepare your team for what’s next. From August 25–28 in Washington, D.C., this multi-group forum brings together five

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Controls: Excess-fuel trip logic mitigates explosion potential

7EA Users Group, 7F Users Group, Controls, Frame 6 / By scottschwieger

Legacy Turbine Doctor, No. 3 in a series By Luke Williams, PE, Consultant www.geLegacyGasTurbineSupport.com An MS6001B in Florida experienced a significant failure in 1994 when its stop-ratio valve (SRV) servo failed. On startup, the unit cranked and fired successfully; however, the valve continued to open. The failure was caused by the servo sticking at a

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Combined Cycle Users Group: 2023 vendor presentation recaps

CCUG, Controls, Generator Users Group, HRSGs, STUG / By scottschwieger

“Mastering Desuperheating and Attemperation,” Ory Selzer, IMI Insyt Almost 200 slides long, this presentation could serve as a comprehensive training course on what can and does go wrong with two of the most vexing subsystems in the steam cycle, as well as solutions. Instructor sets the stage with numerous photos of component failures (Fig 6),

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Power Plant Controls Users Group: 2023 vendor presentation recaps

CCUG, Controls / By scottschwieger

Related Links What you shouldn’t miss at the upcoming Power Users Annual Conference featuring five user group tracks Power Users Annual Conference dives deep into emerging industry trends, concerns Combined Cycle Users Group: 2023 vendor presentation recaps Steam Turbine Users Group: 2023 vendor presentation recaps Generator Users Group: 2023 vendor presentation recaps Power Plant Controls

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Power Users Annual Conference dives deep into emerging industry trends, concerns

CCUG, Controls, Generator Users Group, HRSGs, STUG / By scottschwieger

Quality of work, changing missions challenge aging plants Related Links What you shouldn’t miss at the upcoming Power Users Annual Conference featuring five user group tracks Power Users Annual Conference dives deep into emerging industry trends, concerns Combined Cycle Users Group: 2023 vendor presentation recaps Steam Turbine Users Group: 2023 vendor presentation recaps Generator Users

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