Induction Motors Horizontal and Vertical0 pages

Induction Motors
Horizontal and Vertical
Induction Motors
Horizontal and Vertical

Electric Machinery (EM) induction motors have been
specifically designed and manufactured for the most severe
Converteam Electric Machinery (EM) induction motors have been
industrial applications, such as heavy duty fans, pumps, refiners,
specifically designed and manufactured for the most severe
compressors, crushers and grinding mill drives.
industrial applications, such as heavy duty fans, pumps, refiners,
compressors, crushers and grinding mill drives.
• Rotor cage bars
•t Rotor cage bars
t The oxygen-free copper alloy cage bars
The oxygen-free copper alloy cage bars
are silver brazed into special milled
t are silver brazed into special milled
t pocket joints in the circular end rings.
pocket joints in the circular end rings.
The end ring joints provide greater
t The end ring joints provide greater
t contact and locking than other methods
contact and locking than other methods
of attaching end rings. Each joint is
t of attaching end rings. Each joint is
t ultrasonically inspected to obtain the
ultrasonically inspected to obtain the
highest quality. The ultrasonic test for
t highest quality. The ultrasonic test for
t thisapplication was developed by EM
his application was developed by EM
engineers. This permits higher heat
t engineers. This permits higher heat
t absorption capacity for starting high
absorption capacity for starting high
inertia loads.t
t inertia loads.
• Rotor laminations
•t Low loss, non-segmental rotor
Rotor laminations
t laminations are tightly anchored to the
Low loss, non-segmental rotor
t shaft. Each laminationanchored to the
laminations are tightly is individually
t insulated tolamination stray losses.
shaft. Each minimize is individually
t insulated to minimize stray losses.
• Rotor shaft
•t The shaft will be forged steel or rolled
Rotor shaft
t steel, accurately forged steel or rolled
The shaft will be machined and smoothly
finished where required. and smoothly
t steel, accurately machined
t finished where required

Induction motor driving a centrifugal compressor.

Ranges
Ranges
Output: 2,000 to 25,000 HP
Ranges 200 to 3,600 RPM
Speed:
Output: 2,000to 13,800 VACHP
Voltage: 2,300 to 25,000
Speed: 200 to 3,600 RPM
Advantages
Voltage: and Rugged13,800 VAC
• Simple 2,300 to Design
• Low Cost
• Higher Starting
Advantages Torque Capability
• Minimal Maintenance

• Simple and Rugged Design
• Low Cost
• Higher Starting Torque Capability
• Minimal Maintenance

Bearings

Rotor

Rotor

••t Rotorconstruction
Rotor construction
t Heavy-duty rotor construction is
Heavy-duty rotor construction is
t designed for adequate torque, high
designed for adequate torque, high
thermal capacity, mechanical rigidity,
t thermal capacity, mechanical rigidity,
t low noise level, and smooth operation.
low noise level, and smooth operation.
The assembled rotor is accurately
t The assembled rotor is accurately
t machined and balanced for smooth
machined and balanced for smooth
operation.
toperation.

• Roller, sleeve or tilt pad bearings are
Bearings
•t designed to match pad application.
Roller, sleeve or tilt the bearings are
t designed to match the application.
• Lubrication of sleeve bearings is
achieved through either ring lubrication
•t or a combination of ring and forced
Lubrication of sleeve bearings is
t lubrication.
achieved through either ring lubrication
t or a combination of ring and forced
• Extra large bearing oil reservoirs ensure
tlubrication.
a clean oil supply to the bearings.
•t Special bearing designs available for
Extra large bearing oil reservoirs ensure
t vertical oil supply to the bearings.
a clean applications.
t Special bearing designs available for
t vertical applications.

WARRANTY