Diesel Generator Application - WEG Machinery (EM) diesel generators provide high quality and...
Transcript of Diesel Generator Application - WEG Machinery (EM) diesel generators provide high quality and...
Electric Machinery (EM) diesel generators provide highquality and reliability along with low maintenance and long life.Individual space requirements can be accommodated with customdesigns. Accessories and features can be provided to meetdemanding customer specifications.
Synchronous GeneratorsDiesel Generator Application
WARRANTY
Synchronous GeneratorsDiesel Generator Application
Advantages• Custom built for various engine
applications.
• Electrical design characteristics can be tailored to the requirement of the load.
• Inboard mounted brushless excitation system reduces maintenance, unit length and installation costs. The exciter is ventilated inside the generator which eliminates the need for separate ventilation paths.
• Special generators are available for Nuclear Class 1E service. These generators are designed, manufactured and test to stringent standards including 10CFR50 Appendix B and ASME NQA-1.
• Various shaft and mounting arrangements are available to suit the installation.
• Stator shift allows for inspection and cleaning of the rotor and stator without disturbing the alignment to the engine.
• Duraguard VPI insulation is fully Class F rated and uses a two-part epoxy-mica system which resists chemicals and moisture, and provides long generator life.
• Top air discharge enclosure reduces noise and air recirculation.
• Continuous damper winding has brazed construction to provide smooth operation.
• Tests are conducted on each generator to verify electrical and mechanical integrity.
Converteam Electric Machinery (EM) diesel generators provide high quality and reliability along with low maintenance and long life. Individual space requirements can be accommodated with custom designs. Accessories and features can be provided to meet demanding customer specifications.
RangesOutput: 2,000-15,000 KWSpeed: 400-1,200 RPMVoltage: 2,400-14,400 VACPower factor: 0.8 leading
Advantages• Custom built for various engine applications.
• Electrical design characteristics can be tailored to the requirement of the load.
• Inboard mounted brushless excitation system reduces maintenance, unit length and installation costs. The exciter is ventilated inside the generator which eliminates the need for separate ventilation paths.
• Special generators are available for Nuclear Class 1E service. These generators are designed, manufactured and test to stringent standards including 10CFR50 Appendix B and ASME NQA-1.
• Various shaft and mounting arrangements are available to suit the installation.
• Stator shift allows for inspection and cleaning of the rotor and stator without disturbing the alignment to the engine.
• Duraguard VPI insulation is fully Class F rated and uses a two-part epoxy-mica system which resists chemicals and moisture, and provides long generator life.
• Top air discharge enclosure reduces noise and air recirculation.
• Continuous damper winding has brazed construction to provide smooth operation.
• Tests are conducted on each generator to verify electrical and mechanical integrity.
RangesOutput: 2,000-15,000 KWSpeed: 400-1,200 RPMVoltage: 2,400-14,400 VACPower factor: 0.8 leading
Electric Machinery800 Central Avenue NEMinneapolis, Minnesota 55413United StatesTel: +1 612 378 8000Fax: +1 612 378 8051www.electricmachinery.com
© Electric Machinery 2011. PPublication NA.10057.gb.01-11.01 Electric Machinery, the Electric Machinery logo and any version thereof are trademarks and service marks of Electric Machinery.The other names mentioned, registered or not, are the property of their respective companies.
WARRANTY
Rotor• Rotor construction The rotor consists of a spider on which the field poles, amortisseur (cage) windings and brushless exciter armature are mounted; providing inertia to minimize current pulsations. Additional inertia can be added as required. Rotor insulation is a Class F system.
• Rotor poles The rotor poles are comprised of steel laminations pressed and bolted together to withstand rotational and electrical stresses and are mounted to the spider rim by bolts, studs or dovetails. The wire-wound poles are then epoxy bonded layer-by-layer to hold the windings firmly.
• Rotor cage bars Phosporous-free brazing of cage bars prevents chemical corrosion which can cause machine failure.
• Rotor shaft Engine-driven generators are provided without shaft or bearings which are typically supplied by the engine manufacturer. EM normally presses the shaft into the rotor spider. If desired, EM can provide the shaft and/or bearing.
• Rotors are balanced at our factory to reduce vibration, provide smooth operation, and meet overspeed requirements of the application.
Stator• Stator construction The stator is composed of a supporting structure, a core of electrical laminations and insulated windings. High grade silicon steel laminations that build up the core are precision punched from core-plated sheets. Pressed and held between end plates, these laminations are stacked in the support structure and spaced for radial ventilation to ensure even cooling throughout the core. The frame is welded and machined to withstand stresses exerted by electrical and mechanical forces in the core and provide low vibration levels.
• Stator winding insulation EM’s Duraguard™ insulation system is a vacuum pressure impregnated epoxy-mica insulation system that provides Class F thermal capability, outstanding dielectric properties, superior moisture and chemical resistance and the superb mechanical integrity of an epoxy resin system. It is a sealed insulation system capable of passing the water immersion test as specified by NEMA MG 1, IEEE 115 and API 546 standards. Abrasionresis- tant coating is available for protection in demanding environments.
• Stator shift Stator shift is available on motors with pedestal type bearings to provide easier accessibility. Extra length soleplates provide stator shift to allow internal inspection of the motor.
Brushless Excitation SystemField excitation is provided by a standardbrushless excitation system which consistsof a rotating armature, diode bridge andstationary field. The brushless excitationsystem eliminates periodic brush andcollector ring maintenance and replacement.
ExperienceEM has over a century ofexperience in design, manufacturing andservicing large synchronous generators.
Rotor• Rotor construction
The rotor consists of a spider on which the field poles, amortisseur (cage) windings and brushless exciter armature are mounted; providing inertia to minimize current pulsations. Additional inertia can be added as required. Rotor insulation is a Class F system.
• Rotor poles The rotor poles are comprised of steel laminations pressed and bolted together to withstand rotational and electrical stresses and are mounted to the spider rim by bolts, studs or dovetails. The wire-wound poles are then epoxy bonded layer-by-layer to hold the windings firmly.
• Rotor cage bars Phosporous-free brazing of cage bars prevents chemical corrosion which can cause machine failure.
• Rotor shaft Engine-driven generators are provided without shaft or bearings which are typically supplied by the engine manufacturer. Converteam EM normally presses the shaft into the rotor spider. If desired, Converteam EM can provide the shaft and/or bearing.
• Rotors are balanced at our factory to reduce vibration, provide smooth operation, and meet overspeed requirements of the application.
Stator• Stator construction
The stator is composed of a supporting structure, a core of electrical laminations and insulated windings. High grade silicon steel laminations that build up the core are precision punched from core-plated sheets. Pressed and held between end plates, these laminations are stacked in the support structure and spaced for radial ventilation to ensure even cooling throughout the core. The frame is welded and machined to withstand stresses exerted by electrical and mechanical forces in the core and provide low vibration levels.
• Stator winding insulation Converteam EM’s Duraguard™ insulation system is a vacuum pressure impregnated epoxy-mica insulation system that provides Class F thermal capability, outstanding dielectric properties, superior moisture and chemical resistance and the superb mechanical integrity of an epoxy resin system. It is a sealed insulation system capable of passing the water immersion test as specified by NEMA MG 1, IEEE 115 and API 546 standards. Abrasion-resistant coating is available for protection in demanding environments.
• Stator shift Stator shift is available on motors with pedestal type bearings to provide easier accessibility. Extra length soleplates provide stator shift to allow internal inspection of the motor.
Typical installation of an engine driven generator.
Brushless Excitation System Field excitation is provided by a standard brushless excitation system which consists of a rotating armature, diode bridge and stationary field. The brushless excitation system eliminates periodic brush and collector ring maintenance and replacement.
ExperienceConverteam EM has over a century of experience in design, manufacturing and servicing large synchronous generators.
Rotor and stator in final assembly.
www.converteam.com
Converteam Electric Machinery800 Central Avenue NEMinneapolis, Minnesota 55413United StatesTel: +1 612 378 8000Fax: +1 612 378 8051
North America Headquarters:Converteam Inc.Pittsburgh, PennsylvaniaTel: +1 412 967 0675
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