rotors

Motor and Generator Components

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Rotor bars expander header icon

Luvata's offering includes rotor copper components for motor and generator applications.

The quality requirements are high for both all measures and surface and typically only oxygen-free copper can be used for this application.

Shiny wedge shape copper rotor bars in different sizes 

 

 

 

 

 

 

 

Rotor bars are manufactured according to customers specifications, so all of these may have special features that make these products perfectly suited to your needs.We can offer ready to install rotor bars.

Depending on the requirements, we can:

  • Cut the product to length according tight tolerance when needed
  • Bars delivered burr free
  • Brushed surface and machined to the required shape
  • Customized packaging

The products will be delivered to you at a competitive delivery time from the smallest sample to lot mass production.
 

D-Leads expander header icon

Luvata has long experience in manufacturing d-sections. Thanks to our capable process, we can offer a cross-sectional area of 4 mm2-9000 mm2. Even larger cross-sections are possible through the forging process.

AlloyENASTMElectrical conductivityThermal conductivity
   MS/mIACS%W/Km
OF-OKCW008AC1020058,3100390
CuAg0.04(OF)CW017AC1040057,799,5388
CuAg0.10(OF)CW019AC1070057,799,5388
 

 

End-rings & Wedges expander header icon
Luvata offers end rings made from different copper grades. With our versatile selection of manufacturing processes we can manufacture end rings in any size and shape.

Wedges can be made based on customer design. Please send us your profile drawing to offer. Our alloys offered to this application are shown in the table.

 

AlloyENASTMElectrical conductivityThermal conductivity
   MS/mIACS%W/Km
OF-OKCW008AC1020058,3100390
CuAg0.04(OF)CW017AC1040057,799,5388
CuAg0.10(OF)CW019AC1070057,799,5388

Rotor & Stator tubes expander header icon

Luvata’s seamless copper hollow conductors are typically used in power generator stator and rotor windings. Stator tubes are rectangular shape hollow conductors made from oxygen free copper grade. We supply also slightly hardened stator tubes for generators which specifications require higher mechanical strength.

Rotor tubes are mainly manufactured using silver bearing copper alloys. Small amount of alloyed silver increase the softening temperature of pure copper and the mechanical properties at elevated temperature are higher than in pure copper. Like our other oxygen free copper grade, silver bearing copper can be joined with all welding and brazing methods and it is suitable for manufacturing processes requiring extreme deformability.

Our hollow conductors have been used in different size of generators over five decades. We have a long experience in manufacturing these demanding products for turbo generators as well as smaller air cooled generators. 

Hollow conductor shapes_ESA0517_450x300

Terminal connections and phase rings expander header icon

Our offering for stators include thick wall OF-OK tubes for high voltage terminals and phase rings.

Oxygen-free copper ensure high electrical conductivity and can be joined safe by all joining methods without risk of hydrogen embrittlement. The tubes are manufactured to customer's specification and after final testing can be cut to a set of different lengths.

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