SIGENTICS HV Series S-modyn Siemens Turbogenerators SIGENTICS HV Series S-modyn

Water Cooled Generators

Technical data water cooled Type Apparent Power Power factor Voltage Frequency Inlet Temp. Thermal Utilisation Noise Efficiency Horizontal Bearing Vibration Standard 1DS2089 62 MVA 0.8 11/10.5kV 50 Hz 35°C Class B 83dB(A) 98.3% <1.8mm/s 1DS2072 48 MVA 98.2% 1DS2059 40 MVA 98.1% 1DS2052 31 MVA 98.0% High utilization 65 MVA 50 MVA 42 MVA 33 MVA 70 MVA 25°C 55 MVA 46 MVA 35 MVA 97.9%

Directly Air Cooled Generators

Technical data directly air cooled Type Apparent Power Power factor Voltage Frequency Inlet Temp. Thermal utilisation Noise Efficiency Horizontal Bearing Vibration Standard 1DS2089 64 MVA 0.8 11/10.5kV 50 Hz 25°C Class B 83dB(A) 98.4% <1.8mm/s 1DS2072 50 MVA 98.3% 1DS2059 42 MVA 98.2% 1DS2052 33 MVA 98.0% High utilization 67 MVA 52 MVA 44 MVA 35 MVA 72 MVA 15°C 57 MVA 48 MVA 98.1% 37 MVA 97.9%

Reliability The S-Modyn is a series concept being developed on long lasting experience and made for all relevant industrial applications demanding power generation (IPG, O&G, Chemical Industry etc.). Using of proven Insulation System Micalastic® Terminal Box and Cable Connection System for highest Short Circuit Current Integrated excitation system Stiff housing design by using a integrated base frame with separate stator and cooler cover Using of decoupled Rotor Winding

1. - Using of proven Insulation System Micalastic® Features: Excellent Corona Shielding Long Lifetime Mica Shield to reduce Partial Discharges High Thermal Durability High Lagging Power Factor is feasible feasible for Converter Operation High switching and reversing Strength

2. - Terminal Box and Cable Connection System for highest Short Circuit Currents Design up to 4200A Short Circuit proof with Pressure Relief Flaps Generously dimensioned in Space for different Equipment Configurations Terminal Connection Flexible Cable Connection for optimal Align-ment between Box and Generator Short Circuit proven Cable Connection 3-phase Short Circuit-tested at 100% voltage Peak Current above 60kA High Withstand Capability against Damages on Cables due to Short Circuit Forces (elastic Cable Connection) Localization of Cables in the Generator’s cold Air Zone

3. - Integrated Excitation System Complexity and Sensitivity No Overhang on NDE-Side Reduced Risk for Oil Leakage since no need for external Bearing Sealing Grid code conformity Convenient Power Rating of PMG for the AVR Ceiling Capacity at Standard 160%, optional 200% Designed for extended leading Power Factors High Speed Excitation Diode sustainability Low Voltage Field Winding  No Overvoltage during Short Circuits Self Healing Varistor Protection Accessability and Shaft Grounding Easy Access to Diodes (e.g. Insulation Tests) Internal Shaft Grounding Brush  Reduction of Brush Exposure to Ambient

4. - Stiff Frame Design by using an integrated Base Frame and separated Stator and Cooler Housing Stiff Base Frame Design Over-speed possible up to 2250 RPM Stiff Frame Construction between Bearings and Anchor bolts (Forces and Vibrations are transferred directly into Ground) Complete Decoupling of Stator Core from the Generator Frame Low Noise Level by Decoupling of Cooler Housing from Machine Housing Standardized shaft, frame size and housing design Proven vibration severity matching API546 requirements

5. - Using of decoupled Rotor Winding Winding flexibility allows for Expansion without Shaft Bending No Risk for Shaft Vibrations caused by thermal Unbalance Harmonized Rotor Winding Temperature due to special Air Ventilation Design rear to the Winding (Minimized Risk for “Hot Spots”!) Stiff Rotor Design due to Salient Pole Decoupled Rotor Winding is minimizing Transfer of Forces and Vibrations

Vibration Characteristics Superior Generator Design downgrades Vibration Problems! General Massive Generator Frame with decoupled Housing and Cooler Hood Direct Transfer of Forces and Vibrations via Short-Path-Alignment to Ground Balancing Stiff Rotor without external Exciter Overhang Modern Balancing Pit Thermal Unbalance Prevention Special Air Ventilation Design minimizes “Hot Spots” Winding Flexibility allows for Expansion without Shaft Bending

Noise Characteristic Robust Housing Design downgrades Noise Emission! General Standard Noise Pressure Limits at no load of 83dB(A) ±3dB Optionally by means of Noise Damping Measures improved to 80dB(A) at no load Complete Decoupling of active Parts from Base Frame Vibrations due to electromagnetic Forces affecting to the Stator Stator vibrations are transferred directly to Ground via Frame Connection Bolts

Reference List on 4-pole Generator Applications

Power Plant Tamero Tamero Generator Type 1DS2060-8AC02 Apparent Power: 37.9MVA; Voltage 6.3kV; Stator Current: 3470A Gas-Turbine Type SGT-600 Power Plant Site Kralupy Chemical Production Complex

Thank you for your attention! Marco Krüger PD LD AP S&COC TS E-Mail: marco.krueger@siemens.com intranet.siemens.com/large-drives