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Medium Voltage
M o t o r s f o r t h e L o n g R u n !
Medium Voltage
Motors
® Medium Voltage Motors
Designed and Eng
1.
Polypropylene non sparking fan runs quieter and uses less power
due to motors superior air flow design
2.
Cast iron fan cover meets NEMA guarded definition
3.
All cast iron construction - provides rigidity and corrosion resistance
4.
Class 20 cast iron same as our explosion proof motors
5.
Epoxy finish paint over red alkyd oxide primer for corrosive
environments
6.
Internal air channels circulate cool air to bearings, resulting in
longer bearing life
7.
Epoxy ester rotor coating
8.
Lifting lugs (2), integrally cast into frame for added safety and
easier mounting
9.
Epoxy VPI stator with epoxy ester overcoat
10.
Grade 5 zinc dichromate hardware - resists rust and provides
easy removal
11.
Extended external grease fittings for ease of regreasing
12.
Shaft diameters as large as 4.5 inches, standard is 1045 hot
rolled, available as 4140 steel for severe belting
13.
Corrosion resistant automatic breather drain guards against
internal condensation, one each end
Blue Chip XRI
®
Medi
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A Word About Quality...
Marathon Electrics uncompromising quality standards
encompass
ISO 9001:2000
procedures from design and
engineering through manufacturing. Our motors have
earned a well deserved reputation for their outstanding
performance and reliability in the toughest of industrial
applications from mining to the process industries.
Marathons reputation for producing highly reliable motors is
a direct result of state-of-the-art techniques and computer
aided design that allow our engineers to simulate designs
prior to manufacturing.
Marathon Electric combines a long history of craftsmanship
with our culture of continuous improvement to ensure that
each motor is engineered and built for lasting dependability.
So, when it comes to specifying or using quality medium volt-
age motors, turn to the industry leader, Marathon Electric!
A History of Reliability...
Since 1913, the name Marathon Electric has been associated
with highly reliable, low voltage electric motors from 1/12
through 1000 horsepower. Today, that history of conservative
motor designs, coupled with the best technology, materials,
and manufacturing techniques, ensures premium operation
and long service life in our above NEMA motor offering.
The power of quality and innovation are combined in our
Blue Chip XRI
®
Medium Voltage motor family. The
Blue Chip
XRI
®
Medium Voltage incorporates advanced design
techniques that contribute to such benefits as size and
weight reduction, and air flow improvements that keep
motor operating temperatures low and efficiencies high.
All motors over 600 volts have form wound stator coils that
are vacuum pressure impregnated in 100% solid epoxy
resin, and are final coated with an epoxy ester for additional
resistance to abrasion and build-up of contaminants.
Computer controlled machine tools maintain the tight
tolerance needed for precise fits, runouts, and air gaps.
Marathons
Blue Chip XRI
®
Medium Voltage motors are the
right choice for applications demanding ruggedness and
high dependability such as metal processing, paper making
and mining.
TEFC Construction for Strength and Reliability
The
Blue Chip XRI
®
Medium Voltage motors incorporate a
totally enclosed fan cooled
(TEFC) design for severe indoor
and outdoor environments. The motors unique profile,
deep fin design, and the circulating action of the internal air
passages, allow for superior heat dissipation. This revolu-
tionary recirculating design, coupled with the motors 100%
cast iron construction, provides a cooler running motor
resulting in longer bearing and insulation life.
The heavy duty construction of the
Blue Chip XRI
®
Medium
Voltage motor provides a strong, sturdy support for
bearings. This ensures accurate alignment of the rotor shaft
assembly, bearings and stator. The motors all cast iron
design minimizes total vibration and noise levels. Our Insulation System Guarantees
Unequalled Dielectric Strength
Marathon Electric incorporates a class F, non-hygroscopic
insulation system that provides an extra margin of thermal
safety during normal operation. The coils are form wound
with multiple layers of mica tape; vacuum pressure
impregnated with a 100% epoxy resin and then overcoated
with an epoxy ester for added protection against moisture,
dirt, and chemical contaminants.
This insulation system provides unequalled mechanical and
dielectric strength, plus voltage endurance during
temporary overloads.
Heavy Duty Rotor Construction
For Dependable Service
The standard rotor assembly consists of die cast aluminum
or optional copper bar construction. The rotor is dynamically
balanced resulting in vibration levels below NEMA require-
ments. Low vibration results in longer operating life as well
as quiet operation. Each motor is individually tested with
the actual test and vibration data included with the motor.
Premium efficient features abound with the
Blue Chip XRI®
Medium Voltage motor. They include a longer core length to
reduce losses by lowering flux density and increasing cooling
capacity along with thinner laminations and high grade
electrical steel.
An Advanced Bearing System
The standard bearings for the 5000 frame are greased
lubricated, single row, open, anti-friction ball bearings.
These oversized bearings minimize unscheduled downtime,
and provide extended life. Roller bearings are available
depending on the application, and grease is added through
external grease fittings. A large lubricant reservoir protects
the bearings from external contaminants and keeps the
bearings running cooler.
Smart Ring Plus For Bearing Protection
The Inpro® Smart Ring Plus, a rotating shaft seal, provides
better bearing protection than non-rotational seals with
field retrofit capacity to convert to an Inpro/Seal when
desired. This feature is provided on both ends of the motor.
Adaptability and Flexibility Built
Into Every Motor
Marathons 5011 and 5013 frame motors have multiple
mounting holes on the fan end foot.
(5011 frame = holes
for 5010, 5011 and 5012; 5013 frame = holes for 5012 and
5013.) This built in feature makes retrofit a breeze! Our 5000
frame also has an available 5800 frame mounting option.
Adaptability and flexibility means cost savings to you.
gineered For the Toughest Applications!
14.
Rotating shaft seal, the Inpro® Smart Ring Plus, prevents contam-
inants from entering the bearing
15.
Integral rotor vents for even cooling
16.
Die cast aluminum rotor is standard. Copper bar rotor is available
17.
Foot equipped with mounting hole, jacking hole, and drive end
has doweling provision
18.
Oversized conduit box for stress cones, available in F1, F2, or F3
locations
19.
Dynamically balanced rotor - vibration levels better than NEMA -
results in longer life and quieter operation
20.
End coil wrap with each coil tied to it, results in extended stator
life
21.
Oversized regreasable anti-friction bearings to minimize
unscheduled downtime and extend life
22.
Large lubricant reservoir protects bearings from external
contaminants
23.
Class F non-hydroscopic insulation system provides dielectric
strength
24.
Deep fin design increases surface cooling area
um Voltage
Features
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16 Quality Motors That Run the Toughest Applications:
Medium Voltage Dripproof Motor Features Cast iron construction for rigidity and reduced vibration NEMA design B torques Bearing caps Oversized, fabricated steel conduit box 200 through 500 horsepower Class F insulation, vacuum pressure impregnated with 100% epoxy resin Regreaseable double shielded radial ball bearings 1.15 service factor Dripproof force ventilated designs are also available
Blue Chip XRI
®
Medium Voltage TEFC - 449 Frame Motor Features Totally enclosed, cast iron construction for rigidity and reduced vibration Regreaseable double shielded oversized ball bearings NEMA design B torques Bearing caps Oversized, cast iron conduit box 150 through 350 horsepower Class F insulation, vacuum pressure impregnated with 100% epoxy resin 1.15 service factor
(Class B rise at 1.0 service factor) Actual test and vibration data included with each motor
Blue Chip XRI
®
Medium Voltage TEFC - 5000 Frame Motor Features Cast iron construction for rigidity and reduced vibration Regreaseable open style Conrad bearings for easy relubrication NEMA design B torques Bearing caps Oversized cast iron conduit box, twice NEMA minimum volume 125 through 800 horsepower Class F insulation, vacuum pressure impregnated with 100% epoxy resin 1.15 service factor
(Class B rise at 1.0 service factor) Epoxy ester stator overcoat Inpro® Smart Ring Plus, rotating shaft seal Provisions for jacking bolts Corrosion resistant automatic breather/drains are located in each end bracket
®
®
P
T
D
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ower
ransmission
istributors
ssociation
Motors for the Long Run!
Blue Chip XRI
®
, 5000 Frame TEFC
SB530-4147M/5K/3-04/LP/BH
A REGAL-BELOIT Company
100 E. Randolph St. P.O. Box 8003 Wausau, WI 54401
Phone: (715) 675-3311 Fax: (715) 675