Case Study: Mitigating ‘Photographing/Ghosting’ on Collector Rings
THE PROBLEM: A large, privately owned company in the southeast U.S. had a 35 MW turbine generator undergo a major rotoroverhaul.
Case Study: Cutsforth™ Solutions for 250 MW Westinghouse
THE PROBLEM: A large power company in the mid west noticed ongoing arcing and sparking on this particular unit.
Case Study: DIY Grinding Corrected by Cutsforth™ Truing
THE PROBLEM: A large, privately owned power company in the U.S. has a 180 MW Westinghouse generator with aftermarket brush holders installed.
Shaft grounding, remote monitoring of data collected
Important to attend user group vendor fairs for two important reasons: It’s where the food and adult beverages are, and where you’ll almost always see something of value that you were not aware of.
BEST PRACTICE: Regular inspection critical to avoiding collector-ring fires
Collector-ring fires on generator exciters should not occur, but they do, and more often than most generating plant personnel would believe.
Attention to detail critical for preventing collector-ring fires
Collector ring fires are not a new phenomenon. They’ve been occurring for decades, and the reasons for ring fires, and how to avoid them, have been discussed extensively at user-group meetings and in technical papers and articles.
Cutsforth™ Puts the Wheels on Innovation
7FA ring fire suggests shift from peaking to base-load duty is not as simple as just running longer
How to solve brush and brush holder problems
Cutsforth™ Introduces Innovative Shaft Grounding System Featuring Dual Copper Grounding Ropes, Mounting Flexibility, and In-service Metering
Dave Cutsforth gives presentation at EPRI on “The Root Causes of Collector Ring Fires.”
Exciter Brush Maintenance Video Series
Improved brush change-out procedure
Cutsforth™ Has a New Height Setter Tool That Allows Turbine Generator Plant Maintenance to Easily Re-Install the Easychange Online-Removable Brush Holder
Cutsforth™ Growth Continues as Company Distribution Center Moves to Bloomington, MN