Case Study
Combined Cycle Power Plant Reduces Turbine Downtime with the Fisher Type EZH Fuel Gas Regulator
www.fisherregulators.com PROVEN RESULTS • Eliminated combustion turbine trips • Improved uptime and unit reliability • Signifi cantly reduced regulator maintenance costs • Improved operational effi ciency CUSTOMER One of the largest electricity producers in the United States Site: A combined cycle electric generating plant with 1800+ MW capacity APPLICATION Combustion turbine fuel gas pressure control CHALLENGES The existing boot-style fuel gas regulators required two or more rebuilds per year due to hydrocarbon impregnation of the elastomeric pressure controlling element , commonly called a boot. In addition to high maintenance costs, the plant experienced pressure swings during the ramp up of the combustion turbines. The pressure swing caused the secondary run to open and att