COMBINED CYCLE STEAM TURBINES Over the last 100 years, GE has delivered more than 1.2 TW of power production capability totaling over 41 percent of the world’s installed steam turbine base. With unparalleled global experience in engineering, manufacturing, sourcing, and services, we are delivering advanced technology steam turbine products to ensure our customers are more profitable, successful and satisfied than ever before. Solutions to Meet Your Power Needs • Integral covered blades with continuous contacting surfaces provide excellent damping capability for superior mechanical integrity. GE’s steam turbine portfolio has the breadth and depth to help ensure that your specific site, operational, steam cycle, and application needs are met. We work with you from the earliest stages of your project, through construction, commissioning, and operation to provide a highly efficient and cost effective turbine that integrates smoothly with the gas turbine and overall plant operations. • Nozzle design provides precise control of radial clearances and throat areas to help ensure greater output and efficiency. Welded Rotors • ith more than eight decades of W welded rotor experience, our designs are proven and reliable. Experience, Strength and Stability • etter access for ultrasonic testing B equipment translates to higher reliability. A systematic and evolutionary platform approach incorporates best practices and technology improvements based on years of experience. Our best-in-class engineering and manufacturing centers around the world enable us to provide an industry-leading portfolio of steam turbine products. Advanced Sealing Features • haft and tip brush seals, developed in S conjunction with our global research organization, improve leakage control when compared to more conventional sealing technology. • bradable coatings on stationary A seals enable the reduction of radial clearances, decreasing long-term performance degradation. Advanced Technology Features High Efficiency Steam Paths • igh reaction 3-D blade and nozzle H airfoils are designed for high pressure (HP), intermediate pressure (IP), and low pressure (LP) steam conditions to achieve industry-leading performance. Shrink Ring Design • E’s unique and proven shrink ring G design reduces distortion, allowing critical clearances to be maintained and sustaining performance over the life of the machine. Combined Cycle Steam Turbines PRODUCT Up to • ompact design with smaller wall C thickness provides flexible load cycling and faster startup times. Family of High Efficiency Last Stage Blades • We offer a comprehensive family of last stage blades to meet your project’s specific conditions.   — Up to 50 inch (1270 mm) for 60 Hz   — Up to 60 inch (1524 mm) for 50 Hz • obust mechanical design features R enable high reliability. • Features such as full tip shroud, enhanced tip section with low shock loss, aerodynamic part span connector, and increased root-reaction improve steam turbine performance. • dvanced radial vortexing improves A performance and hood integration over a range of loads. Self Synchronizing Clutch Reduces auxiliary startup steam demand and enables the gas turbine to reach 85 percent load in less than 20 minutes for hot start conditions. LP Side Exhaust Available for all D-series machines and enables ground level condenser connections, reduced centerline height, BOP equipment to be located on one side and lower plant construction costs. Proven Validation Methods • E thoroughly tests hardware to G ensure every machine meets the reliability and performance standards our customers demand. • The Low Pressure Development Turbine, located in Schenectady, NY, USA, is a key element out of our multiple test facilities. This test facility uses steam to test our LP designs for both

THREE CASING, DOUBLE-FLOW LP SECTION, COMBINED CYCLE STEAM TURBINE The D650 is GE’s highest-performing combined cycle steam turbine and delivers the reliability and availability needed in today’s demanding energy environment. It is ideally suited for 50 Hz and 60 Hz H-class and F-class gas turbine power plants that have high fuel costs and high annual hours of operation. The single-shaft configuration incorporates a clutch for enhanced operational flexibility. The D650 turbine consists of separate HP, IP, and either one or two double-flow LP sections. Reheat Temperature Steam Turbine Efficiency...