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… SINCE 1891
Synchronous and induction Synchronous and induction
generators for mini hydro generators for mini hydro
power stationspower stations
HYDROPOWER AFRICA 28 – 29 JULY 2009Johannesburg, South Africa
Speakers: Dean Pratt, Regional Manager, South AfricaGianluca Stanic, Technical Director, MarelliMotori, Italy
Tech Dept. 2009 5
USAHarrodsburg
SOUTH AFRICAJohannesburg
ASIA PACIFICKuala Lumpur
HEADQUARTER
Overseas Offices
CENTRAL EUROPEGermany (Elze)
GREAT BRITAINLoughborough
Tech Dept. 2009 6
PRESENCE
• Each Subsidiary has its own team of After Service Engineer in order to guarantee a prompt reply to customers claims and keep in contact with the factory.
USAHarrodsburg
SOUTH AFRICAJohannesburg
ASIA PACIFICKuala Lumpur - Malaysia
HEADQUARTER
CENTRAL EUROPEElze - Germany
GREAT BRITAINLoughborough
Tech Dept. 2009 7
SPARE PARTS
• Supply Genuine Spare Parts inclusive of major equipment assemblies, to Distributor and Operators, and Recommend them a basic spares stock, in order to support operational needs
• Original and Guaranteed Parts • Major equipment assemblies
(complete rotors, stators..)• Kits of Recommended Spare
Parts• Shipments all Over the World
Tech Dept. 2009 8
SERVICE on SITE, PERIODICAL INSPECTIONS and MAINTEN ANCE
• Our customer can rely on the support given by our teams of Engineers ready to act in a quick time all over the world and in different fields such as industrial, marine, oil & gas.
• Skilled Personnel.• Quick response. • Advanced equipment for tests
and measurements. • Reports of the carried out
activities ar issued.
Tech Dept. 2009 9
Marelli Motori Hydropower Generator CapabilitiesMarelli Motori Hydropower Generator Capabilities
• Over 30 years – 500 units world wide
• Synchronous and induction generators
• Vertical and Horizontal
• Antifriction or sleeve bearings
• IP23 to IP55 protection degree
• Speed: From 2 to 22 poles
• Power: From 1 kW to 6 MVA (50 & 60 Hz)
• Voltage: From 220 V to 15 kV
• International Standards and Customized Specifications
• In house full design, manufacturing and testing capabilities
• Global After Sales
MJHRT710LB102600 kVA-6kV-50Hz 600 rpm
Andritz Pelton TurbineBozen Hydro Station,
Italy
Tech Dept. 2009 10
Hydro features:
• Energy Efficiency
• Leading power factor
• Energy control:
• Propietary digital AVR MEC 100
• Automatin pf regulator
• Diode Monitoring
• Manual excitation device
• CTs and VTs on board Installation
• Special shaft (direct coupling
with the runner, Hollow shaft etc)
• Flywheel / Thoothed wheel / Brake
• High overspeed design
From Standard Confoguration to Customised SolutionsFrom Standard Confoguration to Customised Solutions
Tech Dept. 2009 11
TURBINES• PELTON • FRANCIS
• KAPLAN
• TURGO
Hydropower Applications are known to Marelli Motori ...Hydropower Applications are known to Marelli Motori ...
Tech Dept. 2009 12
STD GEN 400 - 450 - 500 - 560
STD GEN 630 - 710 - 800
GUIDE+THRUST BEARING GUIDE BEARING
GUIDE BEARINGGUIDE BEARING
THRUST BEARING
OR 500 FRAME SIZE WITH SMALL PELTON TURBINE
Hydropower - STD horizonthal GeneratorsHydropower - STD horizonthal Generators
Tech Dept. 2009 13
GUIDE+THRUST BEARING
GUIDE BEARING
GUIDE BEARING
GUIDE BEARING
THRUST BEARING
ONLY RADIAL LOAD / NO AXIAL LOAD
Hydropower - Generators with Pelton TurbineHydropower - Generators with Pelton Turbine
GREASE LUBRICATED
Tech Dept. 2009 14
C:\Documents and Settings\fsavegnago\Desktop\hydropower\m71ac023b_=.tif
GUIDE BEARING
GUIDE BEARINGGUIDE BEARING + SMALL REVERSE
AXIAL LOAD
GUIDE BEARING
DOUBLE AXIAL THRUST
BEARINGS
DOUBLE AXIAL THRUST BEARINGS OPPOSITE
CONFIGURATION
Hydropower - Generators with Francis TurbineHydropower - Generators with Francis Turbine
Tech Dept. 2009 15
DOUBLE AXIAL THRUST
BEARINGS
Hydropower - Generators with Kaplan or Francis Turbi neHydropower - Generators with Kaplan or Francis Turbi ne
DOUBLE AXIAL THRUST BEARINGS OPPOSITE
CONFIGURATION OIL BATH LUBRICATED MARELLI
DESIGN
GUIDE BEARING OIL BATH
LUBRICATED
GUIDE BEARING + SMALL REVERSE
AXIAL LOAD GREASE
LUBRICATED
AUXILIARY MOTOR VENTILATOR FAN
Tech Dept. 2009 16
GUIDE BEARING
DOUBLE AXIAL THRUST
BEARINGS
AXIAL THRUST BEARING OIL BATH LUBRICATED
GUIDE BEARING
TOOTHED WHEEL
Hydropower - Generators with Pelton / Francis Turbin eHydropower - Generators with Pelton / Francis Turbin e
Tech Dept. 2009 17
GUIDE BEARING
DOUBLE AXIAL THRUST BEARINGS MARELLI DESIGN
DOUBLE AXIAL THRUST BEARINGS OPPOSITE
CONFIGURATION
Hydropower - Generators with Kaplan or Francis Turbi neHydropower - Generators with Kaplan or Francis Turbi ne
Tech Dept. 2009 18
INSULATED GUIDE BEARING
INSULATED GUIDE BEARING
GUIDE + LOCATING BEARING
GUIDE + LOCATING BEARING
ONLY RADIAL LOAD / NO AXIAL LOAD
FLANGED SHAFT EXTENSION
FLANGED SHAFT EXTENSION AVAILABLE ONLY WITH
SLEEVE BEARINGS
Hydropower - Sleeve bearings Generators with Pelton TurbineHydropower - Sleeve bearings Generators with Pelton Turbine
Tech Dept. 2009 19
GUIDE BEARING
DOUBLE AXIAL THRUST + GUIDE BEARING
RINGS FOR ROTOR CURRENT MEASUREMENT
Hydropower - Vertical sleeve Generators with Kaplan / Francis TurbineHydropower - Vertical sleeve Generators with Kaplan / Francis Turbine
Tech Dept. 2009 20
Hydropower - Low Voltage WindingsHydropower - Low Voltage Windings
LOW VOLTAGE WINDING
Tech Dept. 2009 21
Hydropower - MV & HV WindingsHydropower - MV & HV Windings
MEDIUM VOLTAGE WINDING
Tech Dept. 2009 22
Hydropower - FlywheelHydropower - Flywheel
FLYWHEEL
A/W EXCHANGER
SLEEVE BEARINGS
Tech Dept. 2009 23
Hydropower - Vertical Kaplan TurbineHydropower - Vertical Kaplan Turbine
COUPLING WITH GEARBOX
- ANTI FRICTION BEARINGS
DIRECT COUPLING WITH
TURBINE - SLEEVE BEARINGS
Tech Dept. 2009 24
HydropowerHydropower
Annunziata - ItalyAnnunziata - Italy
Power: 110 kWSpeed: 1010 rpmVoltage: 400 V
Power: 110 kWSpeed: 1010 rpmVoltage: 400 V
Polesio - ItalyPolesio - Italy
Power: 325 kWSpeed: 3019 rpmVoltage: 400 V
Power: 325 kWSpeed: 3019 rpmVoltage: 400 V
Tech Dept. 2009 25
HydropowerHydropower
Eupen - BelgiumEupen - Belgium
Serie: MJT 500 SA 6 - Power: 700 kVA - Speed: 1000 rpm - Voltage: 400VSerie: MJT 500 SA 6 - Power: 700 kVA - Speed: 1000 rpm - Voltage: 400V
Serie: MJT 400 SA 6 - Power: 270 kVASpeed: 1000 rpm - Voltage: 400 VSerie: MJT 400 SA 6 - Power: 270 kVASpeed: 1000 rpm - Voltage: 400 V
Serie: MJT 315 SB 4 - Power: 250 kVASpeed: 1500 rpm - Voltage: 400 VSerie: MJT 315 SB 4 - Power: 250 kVASpeed: 1500 rpm - Voltage: 400 V
Tech Dept. 2009 29
HydropowerHydropower
GENERATOR WITH FRANCIS TURBINE AND FLYWHEEL
VERTICAL GENERATOR
WITH PELTON TURBINE