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Move the world ...
Answers for industry.
Large Drives
2
Wie Salzwasser den
Durst der Welt löscht ............ 6
Wie So
nn
e un
d M
on
d
die W
elt antreib
en ............. 1
0
Wie schnelle W
ege die Welt
der Megacitys bestim
men ....14
Wie Gas aus der Arktis weltweit
für Wärme sorgt .....................18
Wie intelligente Verkehrs konzepte
die Welt voranbringen .........22
Wie
Kup
fer a
us d
en A
nden
die
Indu
strie
n de
r Wel
t err
eich
t ...
. 26
Wie
die
Wel
tmee
re a
n
Bed
eutu
ng
gew
inn
en .
....
....
. 30
Der rich
tige Partn
er für je
de
Herausford
erung ..
........
.......
34
Die weltweite Nummer eins für Großantriebe .................... 4
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3
The world is changing, and with it, the global challenges:
More and more people are depending on materials that are becoming increasingly
scarcer. At the same time, cities are continuing their never-ending growth and the
demand for unrestricted mobility is forever on the rise – just the same as the
necessity to actively promote environmental protection.
The way out of this complex, conflicting situation demands new thought processes
and action – intelligent solutions that play their role in fulfilling the enormous global
challenges of today and tomorrow.
... and shape its future.
4
Number 1 worldwide for large drives.
Oceans of the world: energy- efficient ships
South America: mining copper under extreme conditions
US West Coast: climate protection using fuel-efficient hybrid buses
5
Whether in industry or the infrastructure: Wherever something big is to be moved, then the
challenges that face the drive are also correspondingly big. Solutions that reliably handle any large
task are required – no matter what the size.
As undisputed market leader when it comes to large drives, in over 170 countries worldwide, Siemens
offers a portfolio that is absolutely unique regarding its width, depth and level of integration and
standardization.
Based on more than a century of experience in drive technology and the concentrated power of
innovation of our company, we implement solutions that set standards in every regard. The examples
of drive applications shown on the following pages clearly indicate the performance and power of
our large drives and the role they play in solving global challenges locally.
Northern Europe: energy from the polar sea
Northern Africa: recovering drinking water in dry regions
Western Europe: clean power from the sea
Southeast Asia: leading edge mobility in megacities
6
How saltwater quenches the world’s thirst.
7
Water covers over two thirds of our blue planet and about 95% of this water is seawater.
Only 0.3% can also be used as drinking water. This precious resource for humanity is becoming
increasingly scarcer. Today, more than one fifth of the world’s population doesn‘t have an adequate
supply of drinking water and experts are forecasting that already in 2025 this figure will have
risen to 50%. Desalination plants can secure the supply of drinking water for generations.
8
Desalination along the coast of Africa.
Desalination plants convert undrinkable saltwater into high-quality drinking water
using the so-called reverse osmosis technique. With this technique, high-pressure
pumps force seawater through a semipermeable membrane. This membrane
only allows certain ions and molecules to pass through. However, it filters out salt,
bacteria, viruses and harmful substances such as heavy metals. These plants work
under pressures of up to 100 bar, which means that the pumps must be able to
provide peak performance when it counts and must be adaptable to meet individual
requirements. And the following always apply: Highest availability around the
clock, outstanding water quality as well as a high degree of cost- effectiveness in
operation – with minimum energy consumption.
9
Water – source of life and progress
Clean water is a basic prerequisite for all human development. Everyone requires up to 1500 m³ every year for nourishment alone. Just how desper-ate the scarcity of drinking water is can be seen in the developing and emerging countries: Here, half of the hospital beds are occupied by patients that have become sick by drinking unclean water. However, water is also indispensable in industry: The availability of water in an adequate quality is decisive when it comes to investment, development and growth.
The No. 1 for pumps: special drive systems
Whether it‘s pumping water from the sea, for reverse osmosis or downstream pump-ing stations: If it involves pumps that are used in the desalination process, then the well-proven drive systems from Siemens are the first choice. They offer power ratings in the megawatt range and have been specifically designed to meet these special requirements. Both the mo-tors as well as the converters distinguish themselves as a result of their extremely high ruggedness. They can handle both aggressive seawater and extreme heat thanks to their well-conceived mechanical design and seawater-resistant paint finish. The systems are certified according to the strict guidelines of Lloyds Register for pump drives used in desalination plants (E90).
Energy-efficient and easy on the mechan-ical system: variable-speed operation
Ideal for fluid flow machines such as pumps: variable-speed drives. These drive systems allow the energy consumption to be signifi-cantly reduced – using frequency converters that are perfectly coordinated and harmo-nized with the motors. When using conven-tional control techniques, the pump motors always operate to be able to handle the peak demand, and therefore always at full speed. In this case, the flow rate is con-trolled using mechanical throttles. However, in practice the demand definitely fluctuates depending on whether it is daytime or nighttime or weekdays. Frequency convert-ers always precisely adapt the motor speed to the required flow rate and ensure an opti-mum drinking water supply. Thanks to the energy savings of up to 70%, frequency converters often have payback times of just a few months. Another advantage: Variable-speed drives reduce the stress on the complete mechanical drive train. The soft starting and stopping prevents the usual pressure surges otherwise caused when starting and stopping the motors. And: disturbing operating states can be avoided, such as overheating of the piping systems, formation of eddies, pumping gas along with the water and cavitation bubbles that can seriously erode the pump impeller blades.
10
How the sun and moon drive the world.
Regenerative energy forms are becoming more and more important as part of the economic
and ecological transition. Both the sun and the moon are increasingly developing to become
an interesting, intelligent alternative to fossil energy sources. The sun offers enormous
potential to be able to practically utilize solar and wind energy while the force of attraction
of the moon makes tidal power stations a viable alternative.
11
12
Wind turbine systems can be operated in all
climatic zones and regions as well as out at sea.
Tidal power stations can also operate below the
surface of the ocean: Both the tidal difference
between low and high tides as well as the kinetic
energy of the tidal currents can be converted
into electricity. However, the energy recovery
process must always have the highest efficiency,
be cost-effective and reliable -– even when the
wind force or solar radiation fluctuate. With
its innovative systems and environmentally
friendly technologies, Siemens – one of the
world‘s leading suppliers in this area – has a
perfectly coordinated portfolio to address the
widest range of applications.
Wind, water, sun.For limitless clean energy.
13
From the sun to electrical power
In principle, solar power stations function just like conventionally operat-ed steam-fired power stations. The only difference is that the steam re-quired is not generated by burning fossil fuels, but by utilizing solar heat. However, as solar modules normally only generate DC current, the DC current must be converted into AC current before it is fed into the line supply. A solar field having the size of a soccer pitch alone requires a so-lar inverter with a 400 kW power rating. Siemens offers this solution with all of the essential components for powerful, high-performance solar in-verters that are used in solar parks.
Systems for efficient wind turbines
Systems from Siemens stand for a maxi-mum energy yield but with minimum oper-ating costs. Our comprehensive portfolio offers perfect generator systems with out-standing power and performance for every wind turbine type: Up to over 5 MW for both onshore and offshore applications. A high percentage of these are manufac-tured by Loher, a Siemens daughter compa-ny. For reasons of economy, double-fed slip ring generators are predominantly used. What makes them different from conven-tional induction generators is the fact that significantly smaller frequency converters can be used. The reason for this is that they do not have to be dimensioned for the full power rating of the system. Additional ad-vantages: Bearings can be changed in the gondola, a brush slip ring combination that has been optimized to achieve the longest lifetime and higher energy yield using an optimized efficiency characteristic with in-creased power factor. All of this is supple-mented by a special paint system to pro-vide optimum corrosion protection under extreme environmental conditions. The variable-speed operation allows the wind turbine to be perfectly adapted to the pre-vailing wind conditions. The power is generated, decoupled from the line fre-quency so that the wind turbine can also be operated at the optimum efficiency at different speeds. The wind turbine convert-ers, utilizing state-of-the-art IGBT technol-ogy, can handle all control types that are typical for wind turbine systems and fulfill the highest requirement when it comes to electrical line supply compatibility. All of these points ensure economic system operation that is truly fit for the future.
Gearless offshore alternative
Especially in the offshore area, wind tur-bine systems must be especially rugged and reliable. To achieve this objective, we are also testing a gearless ring gener-ator that uses permanent-magnet tech-nology as alternative to our well-proven solutions. This solution has ratings that extend up into the multi-megawatt class. Gearless ring generators are almost maintenance-free and are therefore ideal for offshore applications where mainte-nance and repairs involve the use of either a boat or a helicopter. This makes them correspondingly time-consuming, expensive and also dependent on the weather. The permanent-magnet syn-chronous generators used in the gearless systems have significantly lower losses when compared to the electrically excited variant. Not only this, their envelope di-mensions and weight are approximately one quarter less. This simplifies transport and installation. Electrical excitation is not required, thus eliminating wearing parts that are prone to failure and require intensive maintenance.
Tamed water power: solutions for high- availability tidal power stations
Different than conventional tidal power stations, modern systems do not require a dam that can have a negative impact on the landscape. For these types of tidal power stations, generator systems from Loher from the area of subsea drive tech-nology are used. They have proven them-selves many times over in water depths down to 1000 m. These generators are integrated in a turbine that operates down to depths of 70 m on the seabed for 20 years without requiring any service or maintenance. Pilot projects that have generator ratings of 1 MW per turbine and a torque of 600 kNm have already been planned. The permanent-magnet synchronous generators have a high effi-ciency and are absolutely rugged, reliable and quiet – to ensure that the ocean fau-na is not disturbed. Not only this, they distinguish themselves as a result of the highest degree of availability and energy efficiency as they are completely main-tenance-free. They are cooled just by the seawater and are protected against corrosion.
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How efficient transportation will define the megacities of tomorrow.
The trend to urbanization continues unrelentlessly. Just back in the middle of the last century
70% of the total population lived in rural areas. Today, more than half of the population lives in
cities – and the trend is on the rise. The consequences for the traffic infrastructure are quite
clear. This is especially true for Asia and Latin America, which have 15 of the 20 megacities
around the globe, each with a population of more than 10 million.
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Traction systems for subways and suburban railways, trams and mass transit trains
Traction systems from Siemens are both innovative and well-proven – and they distinguish themselves as a result of the highest degree of reliability but with minimum maintenance costs. Traction converters and motors are the core of the traction system. IGBT power semicon-ductors with integrated PWM inverters are used as traction converter. This solu-tion permits an enormous cost-saving po-tential: These flexible converters use the energy that is regenerated when braking to supply the auxiliaries. Additional en-ergy can be fed back into the traction power supply, which reduces the drive losses to a minimum and increases the level of availability.
Mass transportation in the megacities.
The only answer to a threatening traffic gridlock in urban
conurbations: Permanently reducing the amount of road traffic
by providing intelligent mass transportation. This must be safe,
have a high degree of availability and reliability, cost-effective,
comfortable – and at the same time environmentally friendly.
As part of its extensive portfolio, Siemens is offering perfect
transportation solutions that already today are ensuring the
highest degree of mobility in the megacities of tomorrow.
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Innovative direct drives using permanent-magnet technology
Less space, lower installation and mainte-nance costs, quieter operation and efficien-cies that are between 1 and 3% higher: When compared to conventional solutions with gear units, these innovative direct drives utilizing permanent-magnet motors offer a whole raft of advantages. Thanks to the smaller dimensions, they can be fully integrated into the bogie and do not require gear unit, couplings or their own bearings. Instead, they use the wheelset bearings that are being used anyway. The Syntegra traction unit is a special high-light of the Siemens portfolio. Syntegra is used for subways and suburban railways.Syntegra sets standards when it comes to cost-effectiveness and environmental compatibility. In 2007, it won the “Intelli-gence for traffic and logistics” innovation award. The fully encapsulated traction motor protects the winding against dirt and moisture – for maintenance-free operation and a very long service life.
High-speed trains
Increasingly faster, safer and comfortab-le: State-of-the-art high-speed trains play a decisive role when it comes to effi-ciently linking large metropolitan areas. The Velaro E, developed by Siemens, is the best example of this. Clocked at a speed of 403.7 km/h, it holds the world speed record for standard trains. An es-sential feature of the Velaro is the distrib-uted drive concept where power cars are not used. The complete electrical equipment in conventional traction sys-tems is accommodated in the power car. In the case of the Velaro, it is distributed across the carriages of the train where it is mounted under the floor. This ensures a significantly higher starting force, high-er acceleration rates and a more effective utilization of passenger space per train length.
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How gas from the Arctic ensures cozy warmth around the world.
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Nobody really knows just how much natural gas is in the Arctic. However, geologists are assuming
gigantic quantities and reckon that this represents about one quarter of the global resources. If this
is the case, then it will satisfy the global demand for gas for years to come – assuming that these
resources can actually be tapped into. In addition to the icy temperatures and darkness, which
extends over months, it is the highly explosive gas itself that makes its retrieval a real challenge.
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Converted at icy temperatures.
The natural gas flows through a so-called cold box. This is a heat exchanger that is approximately 40 meters high. Here, step-by-step, it is further cooled using a refrigerant and is finally lique-fied. Driven by huge compressors, the refrigerant flows in various circuits through the heat exchanger. At –163°C, the volume has shrunk by 600 times: This means that 600 cubic meters of gas are converted into one cubic meter of LNG.
Gas liquefaction at the end of the world.
One of the possibilities of also guaranteeing a reliable energy supply in the future:
LNG (Liquefied Natural Gas). This is because only in its liquid form can natural gas
be economically transported from the farthest corners of the world to where it is
actually required. Large drives from Siemens fulfill the huge challenges that have to
be surmounted in the LNG production process: The highest degree of availability and
efficiency when recovering, liquefying and transporting the gas – all of this with a
maximum degree of protection for man, machine and the environment.
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Unrivaled: the world’s most powerful electric motors for gas liquefaction
Extremely powerful – from 60 MW up to over 100 MW: In the liquefaction process, Siemens synchronous motors bring the compressors for the so-called cold box up to speed. When compared to gas turbines, electric motors can be simply controlled and are essentially independent of the out-side temperature. Not only this, they op-erate without any maintenance for up to 5 years in nonstop continuous operation and with an efficiency of 95% (overall effi-ciency, approx. 52%). All of this represents some significant advantages regarding the consumption of raw materials and CO2 emission.
Maximum safety: three-phase motors with double protection Ex d and Ex e LNG is transported around the world in huge tankers. Loher, the Siemens daugh-ter company, supplies the onboard mo-tors. Loher is the specialist when it comes
to drive solutions for extreme locations. Methane makes up to 90% of natural gas. Methane is an easily combustible gas that can be compressed. This is the reason that only three-phase motors with special, clearly defined properties are used aboard LNG tankers. As a result of the Ex d and Ex e double protection, Loher motors ensure the maximum degree of safety for man, machine, load and the environment. Inad-missibly high temperatures are prevented from occurring at all parts of the motor. Further, an explosion inside the motor can-not be propagated to the outside as the motor enclosure can withstand the pres-sure generated by such an explosion. The motors operate absolutely reliably at tem-peratures that extend from –55 degrees to +70 degrees – and they have ATEX certifi-cation and country-specific certificates such as GOST (Russia) and NEPSI (China).
Extremely powerful: high-speed induction motors for compressor plants and systems
The perfect solution to handle high speeds: Siemens high-speed induction motors with a direct drive – combined with the appropriate drive converters. With speeds of up to 15,000 rpm at 4 MW and 6000 rpm at 30 MW, they drive the compressors in these plants. Contrary to gas turbines, these gearless motors are significantly more flexible when it comes to adapting to the process control. Not only this, they are convincing as a result of the lowest service & maintenance costs as well as the highest degree of avail-ability. The rugged rotor technology ensures maximum reliability.
Innovative converter technology for the highest plant availability
The innovative cell concept is a real high-light in our range of converters. Low-voltage cells, connected in series, result in a medium-voltage converter for the power range from 150 kW to 120 MW. Thanks to the sophisticated cell bypass function, defective cells are bypassed in less than one second and the process continues to operate.
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Hardly any challenge demands more innovative thought and action than the climate change and at the same
time requiring the use of environmentally friendly technologies. This is why increasingly more communities
are using innovative and intelligent alternatives to the automobile as response to the increasing amount of
traffic, smog and respirable dust. California is playing a leadership role in this area: Already back in 2003,
the most populated state in the US passed legislation to reduce automobile exhaust emissions.
How intelligent traffic concepts move the world forwards.
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Leading edge hybrid buses in metropolitan areas.
Modern mass transportation is facing some enormous challenges. The highest
degree of reliability, effectiveness and energy efficiency is demanded and – as far
as possible – environmentally friendly operation. Hybrid buses, equipped with large
drives from Siemens fulfill all of these requirements. This is reflected in the fact
that there are already thousands of these buses in operation around the world.
When compared to conventional city buses, they are attractive as a result of their
significantly lower noise and CO2 emissions, higher degree of passenger comfort
and the highest cost-effectiveness thanks to the lower fuel consumption and the
ability to regenerate the braking energy.
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Well-conceived down to the finest detail: the ELFA concept
Energy can be far more efficiently used with the ELFA electric traction system. This is a combination of diesel engine, electric motor and energy storage device. ELFA allows fuel consumption to be re-duced by between 20% and 40% and also the emission values are significantly re-duced. This makes it quite clear as to why hybrid traction drives have such a short payback time. For instance, these city buses store the braking energy that is generated during stop-and-go opera-tion – typical when operating in towns and cities. This energy is then reused when the bus starts. This not only re-duces costs, but also reduces the envi-ronmental stress. The Siemens electric traction system uses the series hybrid principle and can therefore be used in a diesel hybrid, fuel cell hybrid and battery vehicles. As a consequence it can be simply adapted to new and innovative developments – for instance in the area of internal combustion engines and energy storage devices.
Advantages across the board: motor variants for every application
As standard, ELFA uses rugged, liquid-cooled induction motors with power ratings of between 50 and 180 kW. As an alternative, permanent-magnet synchronous motors can also be used. Their direct drive offers an even higher degree of efficiency – also in the highly integrated version in the wheel hub of low-floor bus axles. Depending on the storage capacity, the buses can be oper-ated completely electrically and therefore with absolutely no emission and no noise. This is important in sensitive inner city areas and at bus stops. Hybrid traction drives can always be operated in the range with the lowest fuel consumption as the vehicle speed is independent of the speed of the diesel engine. Also when it comes to overall efficiency, noise emission and operating behavior, the innovative traction converter technology offers other clear advantages: For instance the especially soft, jerk-free starting, that offers passengers a significant-ly higher degree of comfort. And last but not least, the ELFA traction drive can be perfectly adapted to any bus type as a result of its modular design. And this, worldwide, independent of regional, climatic and topo-graphical situations.
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How copper from the Andes reaches the industries of the world.
About one quarter of the world’s known copper resources are in the Chilean Andes. However, this red gold
is in demand around the world. Without copper there would be no entertainment electronics and computers,
no medical technology and no reliable power supply. However, this sought raw material must be mined at
an altitude of 3200 meters and then transported along kilometer-long conveyor belts where it is processed.
This represents a real challenge when one considers the extreme conditions that prevail throughout the year.
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7000 tons of steel precisely moved: drive concepts for scoop bucket excavators
Over 100 meters high and equipped with a metal bucket lined with teeth that can pick up and carry up to 360 tons of rock: The bucket wheel excavators used in opencast mining are impressive from every perspective – just the same as the gearless motors that we supply for these giants. The motors, which are directly in-tegrated in the cable drum, have a rating of approximately 10 megawatts. They move and position the steel bucket with the highest precision when scooping up and unloading the ore containing rock. But there is more to come: They also swivel the excavator, which weighs up to 7000 tons, and propel it forwards. How-ever, what is particularly important is that they increase the productivity of opencast mines as a result of their espe-cially low maintenance, reliable design as well as their high efficiency.
Transport heavier loads with lower costs: traction systems for mining trucks
The traction solution that Siemens has specifically developed to cope with the tough requirements prevalent in the min-ing sector is the most powerful in the market with the highest performance. This is the reason that they are ideally suitable for the mining trucks used in opencast mining. When loaded, these trucks weigh up to 630 tons and can carry a payload of 360 tons. The core of the traction solution: Two three-phase motors with rated powers of up to 4000 kW, a gen-erator, innovative converter and control technology as well as two electric wheel hub motors that are integrated in the rear axle of the truck. This innovative concept permits a higher degree of flexibility in operation and higher speeds. As a result of the high starting torque, these trucks can easily start from standstill on an incline and even under extreme ambient
When it comes to copper mining, the topmost goal is to continually
optimize grinding and transport capacities and minimize the operating
costs. Heat, dust and high vibration levels inside the crushers, conveyors
and processing plants place extreme demands on the products and
systems used. And above all, absolute protection of man and machine
must be guaranteed – and the environment must not be unnecessarily
stressed. The rugged and efficient large drives from Siemens provide
the perfect answer to all of these challenges.
Efficient raw material mining at an altitude of 3000 meters.
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temperatures, can master gradients of up to 12%. One of the reasons for excep-tional performance is the cooling concept that has been specifically developed for these ambient conditions. The bottom line – using this traction solution, larger quantities can be transported more quickly, safely and reliably and signifi-cantly more economically. Not only this, this diesel-electric system reduces the environmental stress.
Generate power going downhill: innova-tive bulk material transport systems
The appropriate conveyor belts, which can transport bulk materials downhill, are required to transport the ore mined at al-titudes of more than 3000 meters down the valley to the processing plant. The Siemens experts have implemented the most modern of its type worldwide. It is designed for a maximum bulk material quantity of 8700 t/h and transports the copper ore down into the valley – de-
scending a total of 1600 meters – on a 1.8 m wide conveyor belt at a speed of 6 m/s. The heart of the conveyor belt drives: 10 three-phase squirrel-cage in-duction motors each with a rated power of 2.5 MW, fed from our well-proven me-dium-voltage converters. An innovative closed-loop control and drive concept ensures stress-free plant operation at all times. An additional advantage: The elec-tric power that is generated when trans-porting the ore from the mine to the pro-cessing plant can be fed back into the plant supply network. This significantly reduces the overall production costs for processed copper.
Pump drives for the processing plants
Raw ore is processed in so-called concen-tration plants. Also here, drive solutions from Siemens ensure the highest degree of efficiency and availability. The systems offer a whole raft of advantages. They are closed-loop speed controlled – and
therefore cost-effective, modular and space-saving. Not only this, variable-speed operation of the pumps in the pro-cessing plant allows the energy demand to be reduced by between 20% and 50%. The gearless ring motors with power rat-ings of up to 30 MW power the ore crush-ers that crush the large rocks so that they can be transported. They fulfill their task with an availability of over 99% with the highest degree of reliability – and that even under extreme conditions. The rea-son for this outstanding performance: The rugged mechanical design and the gearless concept that eliminate mechani-cal components between the motor and the crusher. This means that gearbox damage, losses and maintenance are a thing of the past. This also applies to plant downtimes caused by gearbox dam-age and the use of oil. And last but not least, the variable-speed operation of the drive train allows the conveyor processes to be more precisely controlled.
Red gold.
For more than 10,000 years, copper has played a significant role in the development of the human race and in the future will also be of decisive significance when it comes to techno-logical progress and innovation. As a result of the exceptional properties of copper, the de-mand for this metal will continue to increase. Already today, approximately 15 million tons of copper are produced and processed every year. This means that the global resources must be mined as efficiently and cost-effectively as possible even if the ore is located in far-flung regions of the world.
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How oceans and seas are becoming more significant for the human race.
For thousands of years, humans have ventured out onto the water for the widest range of reasons – to
discover or conquer, to look for food or trade with other nations. Today, as a consequence of the global move-
ment of goods and taking into account the global energy supply, ships are irreplaceable as a means of trans-
port. More than 80% of global freight is transported by sea and also cruise ships are enjoying a real boom.
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Full speed ahead – in all waters.
motor. This is located on the ship’s pro-peller shaft between the diesel engine and the propeller. This increases the drive power and means that the ship can reach its destination port faster. Further, this booster motor can be used as environ-mentally friendly main drive in coastal re-gions. This relieves the stress on the main engine and also reduces service & main-tenance costs.
Equipped against wind and weather: on-deck motors
On-deck drive systems, for instance for winches, must be insensitive to spray, flooding and icing. Siemens large drives include systems that have been specifi-cally designed for these rugged environ-mental conditions. These are robust and tough and ensure that a ship can contin-ually and reliably perform its duties on the high seas. The special motors from Loher – a Siemens daughter company – have an absolutely watertight, fanless cast iron frame with water-rejecting ring-type ribs. Even when flooded by water these motors continue to run smoothly. A special offshore paint finish provides
Extremely reliable, quiet and low vibration: main drives
Diesel-electric main drives from Siemens combine the highest level of cost-effec-tiveness and reliability. And as a conse-quence of lower pollutant emission, these are especially environmentally friendly. Additional advantages include: Lower vibration levels and quieter as well as a lower space requirement – for instance for the permanent-magnet high-power torque motors. These are optimally suited to implement gearless drive concepts that require significantly less diesel fuel than conventional diesel-mechanical systems.
Container ships are the true giants of the world’s oceans and are becoming increas-ingly larger. Just a few years ago, con-tainer ships that could carry more than 6000 standard containers (TEU) were considered to be the largest of their type. Presently, the largest of the so-called megaboxers of the world can carry twice this amount with 13,500 TEU. As a result, main ships’ diesel engines often reach their limits. Siemens also has the opti-mum answer here – the so-called booster
Whether for container or supply ships, for tankers, military
ships or passenger cruise liners: In addition to absolutely safe
operation, the highest degree of reliability and cost-effective-
ness on board ships have topmost priority while the ship is
operational. Every square meter that can be used for passen-
gers or freight is extremely valuable. At the same time, the
energy demand must be reduced to a minimum. Siemens offers
an extensive range of large drives that are ideally suited for use
on the high seas and naturally comply with all of the relevant
certifications.
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additional protection against corrosion. For areas on deck that are not directly subject to flooding, motors with extended fan cowls prevent spray water from entering the motor. Motors in an ice-proof design round off the portfolio.
Leading edge supraconducting motors
Siemens is continually making advances in the area of supraconductor technology. Already back in 2001, the engineers com-missioned the first high-temperature supra-conductor (HTS) in Europe. When com-pared to copper windings, the extremely quiet and low-vibration HTS permit loss-free current conduction at the highest effi-ciencies. Further, this technology allows motors to be implemented with signifi-cantly lower envelope dimensions. The reason for this is the high current density. The result: Smaller and lighter motors with a higher power rating, high efficiency and electrical stability and therefore more space for additional freight or additional passenger cabins. With the trend to the “fully electric“ ship, HTS technology is of special significance for the future.
The birth of cruise ships
The German ship owner Albert Ballin is considered to be the person who created the idea of passenger cruise liners. Albert Ballin was General Director of Hapag based in Hamburg. As fewer passengers booked transatlantic passages in winter due to the poor weather and rough seas, back in 1891, he dis-patched the ship Augusta Victoria into the Mediter-ranean on an “education and enjoyment trip“ as a test. It was a huge success: The ship was completely booked out and passenger cruise ships were borne. Other shipping companies immediately followed this example. As a consequence, with the development of passenger jets and the increasing amount of air traffic, shipping companies completely moved away from simply transporting passengers to their destination port and went into the passenger cruise business.
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The bigger the challenge, the more important the correct partner.
Unbeatable portfolio for drive technology
From motors, converters and transformers up to the cabling and the interfaces to the higher-level process control systems and the driven machine: For high-rating drive systems, Siemens offers the complete pack-age for each and every requirement – from a single source and with products that are always perfectly harmonized with one another. The portfolio covers all of the usual voltage classes and has no limit at the upper end of the power spectrum: Even drives with 100 MW and above can be implemented. Siemens offers all levels of dynamic response and performance and engineers both single as well as multi-motor drives. If specific requirements are demanded due to the location or the ap-plication itself, then special tailored drives from Siemens are the first choice. When required, these fulfill the API Standard – or the relevant certifications according to ATEX, NEPSI (China) or GOST (Russia). Explosion protection in all of the usual classes of protection can be implemented as well as special versions for use in extreme locations.
Comprehensive service and support
From planning through commissioning up to modernization and retrofit: With its ser-
Modern large drives must perform around the
clock – an enormous challenge. For users and
operating companies, in addition to first-class
products and systems, comprehensive service and
support are also of extreme importance.
Siemens offers both of these: A portfolio – unique
both in its width and depth – as well as an innova-
tive range of services that is just as extensive.
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vice and support, Siemens covers the com-plete life cycle of drive systems worldwide. Further, the company provides all of its expert knowledge online – in several languages. The Technical Support can be reached through a hotline that is open 24/7 – and when required, the field service is quickly on site to provide help. And what is also important: the smooth spare part logistics worldwide. Before commis-sioning, the drive systems are tested in one of the numerous Siemens system test facilities. There, future operation is simulated on com-pletely configured systems under normal as well as the most extreme conditions. This means that the systems can already be opti-mized in advance. This also means that com-missioning can be speeded up – last but not least as the drive is already parameterized in the test phase.
Valuable synergies in the global competence network
When it comes to developing and imple-menting its drive systems, Siemens also uti-lizes new impetus for innovation from outside its own organization. This is the reason that for years now, the company has worked close-ly with leading universities and technical col-leges in the areas of machinery construction and electrical engineering. The fruits of this cooperation flow directly into the drive com-ponents and systems.
Global market leader for large drives – our unbeatable broad portfolio at a glance
• Drive systems with power ratings up to 120 MW • All voltage classes from 400 V up to 13.8 kV • Speeds from 10 rpm to 15,000 rpm • With or without regenerative feedback into the
line supply, as single- and multimotor drives • All levels of dynamic response and performance • From standard up to sector- and customer-specific
solutions • With integrated safety and maintenance functions • All country- and sector-specific certificates
Drive systems from Siemens – wherever high drive power ratings are required:
• Pumps and compressors for liquid and gaseous media • Large mixers, kneaders, agitators and extruders in the
basic materials industry• Ore and rock crushers as well as dump trucks and
excavators in opencast mining• Blast furnace blowers and rolling mills in the steel
industry • Main and secondary drives on board ships • Drives for buses, suburban and long-distance trains • Generator systems for wind turbines and tidal
power stations• Refiner and roll drives in the paper industry• Presses and test stands in vehicle construction
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www.siemens.com/large-drives
Siemens AGIndustry SectorLarge DrivesP.O. Box 47 4390025 NÜRNBERG GERMANY
Subject to change without prior noticeOrder No.: E20001-A280-P500-X-7600Dispo 21503ROT GD.LD.XX.LDAL.52.9.01 WS 03093.Printed in Germany © Siemens AG 2009
The information provided in this brochure contains merely general descriptions or characteristics of performance which in actual case of use do not always apply as described or which may change as a result of further development of the products. An obligation to provide the respective characteristics shall only exist if expressly agreed in the terms of contract.
All product designations may be trademarks or product names of Siemens AG or supplier companies whose use by third parties for their own purposes could violate the rights of the owners.
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