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Different types of integrated flywheel starter generators and integrated flywheel generators, which are intended for integration in internal combustion engines and for the use in the electric systems, where high consumption of electric energy occurs.
These starter generators and generators are designed to be built in the flywheel housing on the engine between the engine and the gearbox and replace classic alternator and starter motor on the engine.
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ADVANTAGES OF THE PILOT GENERATOR
Excitation systems of generators including a pilot generator have a more simple and more rational design than the compound excitation systems and provide to the set a larger reliability
DESIGN OF THE PILOT GENERATOR
Magnets : Samarium Cobalt - very stable, high coercive magnetic field
Stability of the voltage in process of time
Stability of the voltage afler a short-circuit
Dismantling without voltage loss : no irreversible demagnetisation
Large number of solutions : pole number, size for the machines
Supplying of the required power to the regulator under any condition of the running of the main generator
MECHANICAL CHARACTERISTICS
Frame, endshields : aluminium, cast iron or steel according the solutions·
Machine with bearings
Mounting : IM 1001 or 3001 or 3601 (low shaft height)
Floating mounting or
Rotor / Stator fitted inside the frame or outside the main generator
Cooling : IC 00, IC 01, IC 0041 or IC 0141
Protection : IP 00, IP 23, IP 44 or IP 55
Insulation class F
Temperature rise class F or B : 100 K or 80 K
Ambient temperature : 40°C or others
According to the required speeds and mounting modes
(Rotor/Stator) : binding of the rotors (magnets) : either metallic or carbon fibre
ELECTRICAL CHARACTERISTICS
maximum economical values Three phase or Single phase
Voltage U eff. <500 V
Power S eff. < 60 kVA
Frequency F <400 Hz
Power Factor : 0 < cos phi < 1
Distorsion < 5% (No-load and Full load)
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PRECILEC RADIO-ENERGIE alternators WIND PMG equip with the wind turbine of small power. Our Permanent Magnet Generator charge the battery to ensure the power supply of the isolated places, off-line to an electrical grid local.
ADVANTAGES OF OUR DESIGN
Our design is reliable, simple and compact
Our know-how is the integration of rare earths magnets. They are very stable, with high coercive magnetic field and high specific energy
Stability of the voltage in process of time
No voltage loss even after a short-circuit
Our design allows an optimal output according to the required configuration
Dismantling without voltage loss: no irreversible demagnetisation
Large number of solutions: pole number, size for the machines which allow to consider all your demanding space requirements
Mechanical interface is optimized
Highest power-to-weight ratio
In direct drive without speed multiplier or gear
No maintenance needed for machine without bearings
Maintenance limited to bearings only for machine with bearings
ELECTRICAL CHARACTERISTICS
Maximum economical values
Three phase or Single phase
Voltage U eff. max 500 V (between phases)
Power P mech. max 20 kW
Frequency F max 400 Hz
Power Factor: cos phi 0 < cos phi < 1
Distortion max 5% (No-load and Full load)
Rated speed max 3000 rpm
MECHANICAL CHARACTERISTICS
Cooling: IC 00, IC 01, IC 0041 or IC 0141
Protection: IP 00, IP 23, IP 44 or IP 55
Insulation class F
Temperature rise class F or B: 100 K or 80 K
Ambient temperature: 40°C or others
According to the required speeds and mounting modes (Rotor/Stator): binding of the rotors (magnets): either metallic or carbon fibre
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The range of STK Permanent Magnet frameless alternators addresses the applications of Wind Turbine generators in low and medium power needing the highest power-to-weight ratio in Direct Drive without gear for matching cost-effective solutions.
Each component of a wind turbine generator and wind turbine alternator requires maximum strength and precision in order to ensure perfect control over the blades.
Main characteristics of wind turbine alternators
Rated power from 200 W up to 99 kW depending on size and rated speeds.
Rated speeds from 80 RPM up to 1500 RPM.
Six overall diameters from 145 mm up to 795 mm.
Internal diameter from 56 mm up to 630 mm.
Various available voltages up to 500 Vac.
Assets of wind turbine alternators
No speed multiplier, no gear
No maintenance
Highest power-to-weight ratio in Direct Drive
Simplification of mechanical design
Easy mechanical interface
Cost optimization
Characteristics of the range of wind turbine alternators
The range of permanent magnet frameless alternators STK includes 6 sizes from 145 mm up to 800 mm available in four different lengths per size and two standard rated speeds
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The system consists of a permanent magnet generator and a single phase inverter to be applied to a generating set (with a gasoline engine)
As the application is in the domestic field, the stability and the quality of the generated voltage must grant the correct working and safety of electronic devices, computers, household appliances, etc.
Our aim is to realize a control system that grants a consistent inverter’s output voltage in presence of load variations. By, also, optimizing the engine performances adapting the speed in function of the output load. The fuel consumption and noise are dramatically reduced.
The generator has been realized with one three phase permanent magnet (NeFeBo) machine in order to obtain an high power density and reduced volumes; the stator’s winding is inside while the rotor runs outside.
For the generator’s dimensions see the table herewith enclosed.
The main inverter’s features are:
- Output voltage: 230V -50Hz single phase (60Hz on demand)
- THD: < 2%
- Max. continuous power: 10KW
- Max overload: 30-50% (depending on the engine) restricted in time
- Two of these devices can be linked in parallel to increase available wattage through the generator outlets.
- Performances following ISO8528 (generator-set): G4 / G3 class
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Generator production comprises both turbogenerators and hydrogenerators. The former, depending on the type of cooling system used (air, hydrogen, stator water and hydrogen), have rated powers ranging from 20 MW (or less for geothermal applications) to 900 MVA.
The latter can be supplied with rated powers up to several hundred MVA (the company has a slow machine reference of more than 400 MVA) and are classified as fast, mid-speed and slow. Long life cycles and qualified development capabilities are features of all Ansaldo Energia products.
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Our technologically advanced products include the world's largest air-cooled turbogenerator for combined cycle application and the largest turbogenerator for nuclear application in operation today.
Alstom's product offering covers turbogenerators ranging from 40 to 1800MW for all applications, and hydro generators. Our product portfolio include:
-TOPACK: fully packaged, plug & play air-cooled turbogenerator from 40 to 150MW (50Hz) and 40 to 90MW (60Hz)
-TOPAIR: world's most advanced air-cooled turbogenerator from 150 to 320MW (50Hz) and 90 to 250MW (60Hz)
-TOPGAS: hydrogen-cooled turbogenerator with best in class efficiency from 300 to 450MW (50Hz) and 250 to 340MW (60Hz)
-GIGATOP 2-pole: powerful hydrogen/water-cooled turbogenerator, from 400 to 1200MW (50Hz) and 340 to 850MW (60Hz), ready for large clean coal power plant
-GIGATOP 4-pole: the largest turbogenerator in operation today, from 900 to 1800MW (50Hz) and 850 to 1800MW (60Hz) for nuclear power plant.
-unique retrofit technology that features proven components for ALSTOM's own equipment as well as equipment from other manufacturers.
-hydro generators and generator motors
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BRUSHLESS CAPACITOR SINGLE PHASE SYNCRONOUS GENERATORS
and SELF-REGULATED WITH AUTOMATIC VOLTAGE REGULATOR (A.V.R.) SINGLE-PHASE BRUSH GENERATORS.
N. Poles: two or four
Frequency: 50 or 60 HZ
Range of power: from 1,0 KVA to 16 KVA.
The combination of dumping cage and skewed slots on the rotor guarantee optimum waveform with total harmonic distortion (THD) = 5In.
THD < 6%
Protection IP23.
Voltage accuracy: +/-5% ; +/-2% con A.V.R.
Insulation Class: H.
Manufactured in compliance with the Machine Directive 98/37, the Electromagnetic Compatibility Directive 2004/108/CE, the Low Voltage Directive 2006/95/CE (and relevant further amendments) and the following standards: CEI EN 60034-1 (IEC 34-1), CEI EN 61000-6-1, CEI EN 61000-6-3.
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We design induction and asynchronous generators for decentralised power generation. Our generators are characterised by high efficiency and reliability. Our induction generators are used in gas engines as well as gas and steam turbines.
Their power range is between 400 kVA and 25 MVA at a nominal voltage between 2.3 kV and 13.8 kV (20 kV). We also build low-voltage and high-voltage asynchronous generators for hydroelectric turbines (ten-pole to twenty-pole, 200 kVA-5,000 kVA).
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More than 50,000 1 to 20 MW POWER alternators are in use throughout the world. Whether it is a matter of supplying electrical power on-board ship, supplying electricity to deprived regions or even avoiding interruptions in a poor-quality mains supply, POWER range alternators are suitable for all drive systems, responding with certainty to the needs of the user, whatever they may be.
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TURBO AND HYDROGENERATORS
Description
WEG offers complete solutions for generation and distribution of energy by supplying internationally recognized quality and state-of-the-art products.
Among all WEG products are the Hydrogenerators and Turbogenerators, which are widely used by Power and Utility Companies for their high efficiency and durability.
Technical Features
Turbogenerators
Outputs: up to 60,000 kVA
Frames: 355 to 1120 (IEC)
Voltages: to 13,800 V
Degree of Protection: IP23 to IPW56 / IPW65
Speed: 1800 rpm
Hydrogenerators
Outputs: up to 200,000 kVA
Frames: 355 to 3150 (IEC)
Voltages: to 13,800 V
Degree of Protection: IP23 to IPW56 / IPW65
Speed: 1200 to 180 rpm
GENERATORS FOR GENERATOR SETS
Description
Available up to 4200 kVA, the G line generators are mainly applied on diesel and gas generator sets as well as on steam, gas and hydraulic turbines.
They are suitable to operate on all emergency or continuous operation generator sets in industrial, commercial, marine, telecommunication, mining areas, in addition to condominiums, irrigation purposes, hospitals and others.
Technical Features
Outputs: 12.5 to 4200 kVA
Frames: 160 to 560 (IEC)
Voltages: 220 to 6900 V
Degree of Protection: IP21 to IPW55
Speed: 1800 to 900 rpm
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Different families of alternators designed in modern compact version with internal fans, classic alternators using external ventilator and liquid cooled alternators.
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THREE-PHASE SYNCRONOUS BRUSH AND COMPOUND GENERATORS
and THREE-PHASE SYNCRONOUS BRUSH GENERAOTRS WITH AUTOMATIC VOLTAGE REGULATOR (A.V.R.)
N. Poles: two or four
Frequency: 50 or 60 HZ
Range of power: from 5,0 KVA to 30,0 KVA.
The combination of dumping cage and skewed slots on the rotor guarantee optimum waveform with total harmonic distortion (THD) = 5In.
THD < 6%
Protection IP23.
Voltage accuracy: +/-5% ; +/-2% with A.V.R.
Insulation Class: H.
Manufactured in compliance with the Machine Directive 98/37, the Electromagnetic Compatibility Directive 2004/108/CE, the Low Voltage Directive 2006/95/CE (and relevant further amendments) and the following standards: CEI EN 60034-1 (IEC 34-1), CEI EN 61000-6-1, CEI EN 61000-6-
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As the leading provider in this market segment, our strengths are situated at a power range between 500 kW and 5,000 kW, including liquid-cooled generators (induction generators, synchronous generators, variable-speed drives with dual feed induction generators and frequency converters).
The most important advantages of our scope of services are flexible customer- and plant-specific design and the quality of our engines.
Experience of many years with liquid-cooled engines under extreme conditions (in mining, since 1970) guarantees our customers the support of a partner with the most sophisticated technology and the best service network. Since 1989 we have delivered more than 4.000 liquid-cooled engines for wind power stations all over the world.
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