MV Induction Motors

GE
Power Conversion
MV Induction Motors
For industrial pump, fan, compressor
and other industrial applications.
NEMA Frames 5800-8000
500-7500 HP
IEC Frames 400-PV900
400-5600 kW
Experience Matters
For over 100 years, GE has produced countless medium voltage induction
machines for the petrochemical, power generation, mining and minerals, water
and wastewater industries. These motors are commonly used for centrifugal
compressors, blowers, boiler feed pumps, crushers and grinders, multi-stage high
pressure pumps such as water injection or pipeline applications.
Standards
GE motors are designed for, but are not limited
to these critical industry standards:
NEMA MG1
IEC 60034-1
ANSI C50.41
IEEE 112
API 541 & 547
Applicable ISO, AFBMA, ANSI, ASME, and ASTM requirements
Quality
Our world-class testing facility has the capability of meeting a wide range of NEMA,
IEC and API motor requirements. GE is dedicated to manufacturing excellence.
Our facilities are ISO 9001 Certified with over 20 years of Six Sigma process
enhancements and best practice implementations. Our commitment is to deliver
the highest quality design to fit your system requirements with service to exceed
your expectations.
Superior Design
Meets or exceeds API 541
requirements for Petroleum
& Chemical Applications
Reduction of Resonances
GE provides machines that are fully compliant to API 541
by API. Use of the latest engineering simulation tools and
standards, globally recognized among the most stringent.
modern modal testing equipment makes it possible for GE
You can be assured that you are getting a well-designed and
to assure shaft resonances do not impede operation of the
reliable product, optimized for your specific application.
machine in the specified speed range.
GE supplies both flexible and rigid rotor technology. All
machines 1800 rpm and below have rigid rotors as defined
Inverter Duty
The insulation system meets the requirements of NEMA MG-1,
part 31. If required, a shaft grounding device is installed to
reduce shaft voltage. Both bearings are insulated and the
drive end bearing is grounded. Our cage induction motors are
certified for use with the GE MV4, MV6 and MV7000 range of
variable frequency drives.
Improved ventilation
and cooling has been
achieved with a new
internal fan design.
Stator frames are designed using powerful
FEA tools. The design tools confirm safety
margins, and assure resonances are well
outside the operating region.
Built for Durability
Stator Construction
Rotor Construction
Laminations are precision punched from high quality, low loss
The magnetic circuit consists of punched thin steel disks
electrical sheet steel with a temperature stable insulating film.
assembled to form a laminated core mounted on the shaft. The
The magnetic core consists of ring laminations compressed
laminations are coated with a temperature stable insulating
and completely wound before the core package is inserted
film to reduce magnetic losses yet maintain dimensional
into the frame.
stability in the face of severe thermal and mechanical stresses.
The rotor winding consists of a number of uninsulated metal
The stator assembly
is configured for
increased air flow
which improves
heat transfer and
provides a more
compact design.
bars in the outer surface of the magnetic core parallel to the
shaft and short circuited by metal rings at both ends.
Copper bars are brazed
to their endrings, and
aluminum bars are
welded to their endrings.
Insulation System
GE uses an epoxy solventless resin vacuum-pressure-impregnation (VPI) process assuring long life. For line voltages
of 5000 Volts and above, a semi-conducting armor is applied
to the slot portion and beyond the core to provide corona
protection. The binding agent is GE’s third generation epoxy
resin, selected and tested to IEEE-1776. The coils receive a
protective armor of heavy glass tape for protection against
®
mechanical shock and abrasion. Custom Polyseal is a sealed
Bearings
GE uses self-aligning spherical seat sleeve bearings per DIN
winding insulation system that meets the requirements of
31693/4. Seal additions are also available to meet IP-56
NEMA MG1 20.18..
requirements. Anti-friction bearings are available with
grease in a sealed housing to avoid contamination meeting
IP56 protection.
It is available upon
Ground Wall
Insulation
request to operate in
severe environments
containing moisture,
oil, chemicals and
salt water.
Turn
Insulation
Strand
Insulation
Copper
Conductor
Self-aligning spherical seat sleeve bearings have features designed
to keep the oil in and the dirt out.
Vertical
Wound Rotor
Accurate Frequency Response Design
Energy Recovery System
System resonance can shorten the life of your equipment.
GE wound rotor induction motors are designed to operate
GE invested in the development and calibration of a new
with Slip Energy Recovery drives within a standard range of
Reed Critical Frequency (RCF) prediction tool. It arms our
80% to 110% of the rated speed. Every design is optimized
engineers with the accurate data they need to create custom
to suit each application and to provide maximum energy
designs for specific application challenges.
savings, effective speed control, and high reliability.
Frame Design - Benefits
Rotor Construction
Large inspection windows on both ends of the frame ensure
The rotor has a three-phase insulated winding. Rotor winding
easy maintenance and inspection access. The modular frame
terminals are brought out through rotating slip rings and
design accommodates multiple cooling, bearing loading and
stationery brushes. These terminals are used to connect
protection options without changing
an external resistor in series with the rotor winding
the motor stator frame.
in order to control the motor accelerating torque and
associated current.
Rotor Design
Shaft FEA modeling (including Torsional, Radial and Axial
loads) help ensure rotor designs meet specifed application
requirements.
Bearing Design
API compliant options are available for the rolling
element and sleeve bearing
Bearing
Upper Endshield
Brush Lifting Device
In a traditional application as the motor achieves nominal
Stator
Chamber
(Enclosed or Open Types)
speed, the starting resistor is shorted out through the brushes
between the slip rings. This shortens the life of the brushes
and adds extra wear in the motor. An optional solution from
GE, called a Brush Lifting Device, is an integrated mechanism,
which shorts the slip rings and lifts the brushes at nominal
speed to avoid this wear.
Shaft
Rotor Lamination
Lower Endshield
Frame
Product Offering
Vertical MV Induction Motors
HP
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
kW
370
750
1100
1500
1900
2200
2600
3000
3400
3700
4100
4500
4900
5200
5600
6000
6300
A*
B*
4 Poles
8200
1800 RPM
8200
8200
8200
8200
8200
8300
8300
8300
8300
8300
8200
8200
8200
8300
8300
8300
8300
8300
8300
A
B
A
6 Poles
8200
8200
1200 RPM
8200
8200
8200
8300
8300
8300
8300
8300
B
82008 Poles
8200
8200
8200
900 RPM
8200
8200
8300
8300
8300
8300
8300
8200
8300
8300
8300
8300
8200
8300
8300
8300
A
B
10 Poles
8200
8200
8200
8200
720 RPM
8300
8300
8300
8300
8300
8300
8300
A
B
8200
8200
12
Poles
8200
8200
8300
8300
600 RPM
8300
8300
8300
8300
8300
8500
8500
8500
8500
A
B
8200
8200
14
Poles
8200
8200
8300
8300
514 RPM
8300
8300
8500
8500
8500
8500
8500
8500
A
B
830016 Poles
8300
8300
450 RPM
8500
8500
8500
8500
A
B
18 Poles
400 RPM
8500
8500
8500
8500
8500
PV500
PV630
PV800
PV900
Horizontal Wound Rotor MV Induction Motors
HP
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
9000
9500
10000
10500
kW
750
1100
1500
1900
2200
2600
3000
3400
3700
4100
4500
4900
5200
5600
6000
6300
6700
7000
7500
7800
A
B
8200
8200
6
Poles
8200
8200
82006600V
8200
8200
8200
8200
8200
8200
8300
8300
8300
8300
8400
8300
8400
8400
8400
8500
8400
8500
8400
8500
8500
8500
8500
8500
8500
8500
8500
8500
8500
8500
A
B
8200
8200
8
Poles
8200
8200
82006600V
8200
8200
8200
8200
8300
8300
8300
8300
8400
8400
8400
8400
8400
8400
8500
8500
8500
8500
8500
8500
8500
8500
8500
A
B
8200
8200
6
Poles
8200
8200
82004000V
8200
8200
8200
8200
8200
8200
8300
8300
8300
8300
8400
8300
8400
8400
8400
8400
8400
8400
8400
8400
A
B
8200
8200
8
Poles
8200
8200
82004000V
8200
8200
8200
8200
8300
8300
8400
8300
8400
8400
8400
8400
8400
8400
8400
Weather Protected (WPI) - IP23
(WPII) - IP24W and IP44W
500
560
630
710
Horizontal MV Induction Motors
HP
500
600
700
800
900
1000
1250
1500
1750
2000
2250
2500
3000
3500
4000
4500
5000
5500
6000
7000
7500
kW
400
450
500
600
650
750
950
1100
1300
1500
1700
1850
2250
2600
3000
3350
3750
4100
4450
5200
5600
A
B
8200
8200
2
Poles
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8300
8300
8300
8300
8300
8300
8300
8300
8400
A
B
8200
8200
4
Poles
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8200
8300
8300
8300
8300
8300
8300
8300
8300
8400
8300
8400
8400
8400
A
B
8200
8200
6
Poles
8200
8200
8200
8200
8200
8200
8200
8200
8200
8300
8300
8300
8300
8300
8300
8300
8300
8400
8300
8400
8300
8400
8400
8400
8400
8400
8400
8400
8400
8400
8400
8400
8500
8400
8400
8400
8500
8500
8400
8500
8500
8500
8500
8400
8400
8400
8500
8500
8400
8500
8500
8500
8500
Weather Protected (WPI) - IP23
(WPII) - IP24W and IP44W
Totally Enclosed Water-to-Air Cooled
(TEWAC) - IP54 or IP56
8500
8500
8500
8500
8500
400
450
500
630
Ratings
60Hz. shown, 50Hz. Available. These ratings are based on
4.1 kV. Enclosures for other voltages may be sized differently.
Contact your GE representative for more information.
* Enclosures
A = WPI / WPII / TEWAC; IP23 / IP44W / IP54 / IP56
B = TEAAC; IP54 / IP56
Totally Enclosed Air-to-Air Cooled
(TEAAC) - IP54 or IP56
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Offering
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of rotating machines.
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Advantage
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Technology
Few manufacturers can claim the depth and
breadth of experience that GE has in building
and delivering electrical and mechanical
solutions for customers.
World-Class
Service
GE has the global resources and capabilities
to maximize the performance and reliability
of your machines.
GE is constantly innovating product
technologies to meet and exceed
customer expectations.
MAIN OFFICES
Australia, Botany
Tel: +61 (0) 2 8313 9980
Japan, Tokyo
Tel: +81 3 5544 3852
Brazil, São Paulo
Tel: +55 11 3614 1930
Russia, Moscow
Tel: +7 495 981 13 13
Canada, Mississauga
Tel: + 1 905 858 5100
Singapore
Tel: +65 6332 0940
Chile, Santiago
Tel: + 56 2 271 92200
South Africa, Midrand
Tel: +2711237 0000
China, Shanghai
Tel: +86 21 6498 2600
South Korea, Busan
Tel: +82 51 710 9015
France, Massy
Tel: +33 1 77 31 20 00
UAE, Dubai
Tel: +971 44296161
Germany, Berlin
Tel: +49 30 7622 0
UK, Rugby
Tel: +44 1788 563 563
India, Chennai
Tel: +91 44 4968 0000
USA, Pittsburgh
Tel: +1 412 967 0765
Additional Options
Monitoring/Protection/Accessories
Vibration Temperature Enclosure Electrical Mechanical displacement, velocity or acceleration
winding, cooling air, cooling water, bearing and bearing oil
anti-condensation heaters, water leakage, differential pressure
current transformers, surge capacitors, surge arresters, partial discharge couplers
soleplates, coupling guard supports, speed sensing
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GEA31319 (7/2014)