Siemens Air-Cooled Generators
SGen-100A-2P Series
with ratings from 25 MVA up to 300 MVA
Final assembly of SGen-100A-2P series at Siemens Generator Plant Erfurt, Germany
As one of the international market
leaders in the manufacturing of
synchronous machines, Siemens has
accumulated many decades of experience in the production of generators.
Proven two-pole air-cooled generators,
from our SGen-100A-2P series, are available for various types of power plants
e.g. fossil-fueled power plants – for
both gas and steam turbine generators. They can be driven by Siemens
turbines or by turbines from other
manufacturers.
Answers for energy.
Our air-cooled generators are developed by using state-of-the-art methods.
By working with special computer
programs for calculation, design and
production, we can optimally match
the generators to the customers’
needs.
Two-pole three-phase synchronous generator
Outstanding design features of the
Siemens air-cooled SGen-100A-2P series
generators include:
high efficiency,
■
low noise emissions, ■
low installation and ■
commissioning costs,
■
high serviceability and
long service life. ■
For each customer project, a customized
generator is developed according to the
individual technological specifications,
output and customer needs. Using a
building-block system, the required
generator type is designed by choosing
from different diameters and by making
adjustments to length. This enables us
to supply our customers with generators
specially tailored to their requirements.
Siemens two-pole three-phase synchronous generators are used as high-voltage
generators with a laminated cylindrical
rotor or a solid salient-pole rotor. Their
rotor windings have direct radial air cooling and their stators indirect air cooling.
These generators use either brushless
excitation with a stationary field exciter
and rotating bridge-connected rectifier
or static excitation, whereby the exciter
power is taken from static excitation equipment and supplied to the rotor winding via
the brush gear, carbon brushes and slip
rings.
The standard design is IM 7215 according
to IEC 34-7 and features pedestal type
sleeve bearings which are supplied by
the oil system of the prime mover.
Other designs are available as options.
2-pole generators are customized for
the use on gas and steam turbines.
SGen-100A-2P series generators are
available with different types of cooling
systems: TEWAC (Totally Enclosed Waterto-Air Cooling), CACA (Closed Air-to-Air
Cooling) or DAC (Direct Air Cooling,
cooling air intake via filter).
11
1
Cross slots
2
Slot wedges
3
14
13
12
10
9
8
7
1
2
5
4
6
3
Rotor winding
4
Rotor coils
5
Rotor shaft
6
Multi-piece liner
7
Insulation tube
8
Radial / axial leads
9
Slip rings
10
Integrated blower hub
11
Blower blades
12
End plate
13
Retaining ring
14
Key assembly
2
1
Excitation is either brushless or static
2
Double-layer stator winding insulated by
using the proven Siemens epoxy-mica
(MICALASTIC®) system produced by the
Vacuum Pressure Impregnation (VPI) process
3
Rotor winding comprising several directly
cooled coils embedded in the longitudinal
slots of the rotor shaft
4
The rotor comprises shaft and coupling,
rotor winding, rotor end-bells and axial fans
5
Welded frame carrying the laminated
stator core and stator winding
6
Welded base frame to support the bearings
with the rotor and the generator frame
2
3
1
4
6
5
Technical data
Frequency Model Power factor Apparent power Efficiency Terminal voltage
50 Hz SGen5-100A-2P 0.80 to 0.85 25 MVA to 300 MVA up to 98.7 % 6.3 kV to 16 kV
60 Hz SGen6-100A-2P 0.80 to 0.85 25 MVA to 235 MVA up to 98.7 % 6.3 kV to 16 kV
3
SGen-100A-2P series: References
With almost 400 units in operation our air-cooled SGen-100A-2P generator series has earned Siemens a flawless reputation
in the field of reliable power generation. Therefore, the following references are only a few examples to illustrate the vast
potentials of the SGen-100A-2P generator series.
Las Flores, Colombia
Simple-cycle power plant
Performance
Generator Type: SGen6-100A-2P
Apparent Power: 200 MVA
Terminal Voltage: 16.5 kV
BASF Ludwigshafen, Germany
Combined-cycle power plant
Performance
Generator Type: SGen5-100A-2P
Apparent Power: 112 MVA
Terminal Voltage: 10.5 kV
Published by and copyright © 2010:
Siemens AG
Energy Sector
Freyeslebenstrasse 1
91058 Erlangen, Germany
Siemens Energy, Inc.
4400 Alafaya Trail
Orlando, FL 32826-2399, USA
For more information, please contact
our Customer Support Center.
Phone: +49 180/524 70 00
Fax: +49 180/524 24 71
(Charges depending on provider)
E-mail: support.energy@siemens.com
Andasol 2, Spain
Solar power station
Performance
Generator Type: SGen6-100A-2P
Apparent Power: 61 MVA
Terminal Voltage: 11 kV
For more information please contact
your local Siemens sales representative.
Fossil Power Generation Division
Order No. E50001-G210-A122-V1-4A00
Printed in Germany
Dispo 34802, c4bs No. 7449
TH 214-100696 431323 DB 10103.0
Printed on elementary chlorine-free
bleached paper.
All rights reserved.
Trademarks mentioned in this document
are the property of Siemens AG, its affiliates,
or their respective owners.
Subject to change without prior notice.
The information in this document contains
general descriptions of the technical options
available, which may not apply in all cases.
The required technical options should therefore
be specified in the contract.
www.siemens.com/energy
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