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

2. Water Cooled Generators

3. 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%

4. Directly Air Cooled Generators

5. 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%

6. 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

7. 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

8. 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

9. 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

10. 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

11. 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

12. 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

13. 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

14. Reference List on 4-pole Generator Applications

15. 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

16. Thank you for your attention!
Marco Krüger
PD LD AP S&COC TS
intranet.siemens.com/large-drives