Synchronous Motors
Industrial Applications
Synchronous Motors
Industrial Applications
WEG Group
Electric Machinery (EM) synchronous motors feature rugged designs
well-suitedElectric
for a variety
of industrial
applications.motors feature
Converteam
Machinery
(EM) synchronous
rugged designs well-suited for a variety of industrial applications.
• Constant
Constant speed
speed
Synchronous
Synchronous motor
motorspeed
speedisisunaffected
unaffected
by
by line
line or
orload
loadconditions,
conditions,providing
providing
greater
greater operating
operatingflexibility.
flexibility.Starting
Starting
and
and pull-in
pull-intorques
torquesare
aredesigned
designedtoto
accommodate
accommodate electrical
electricalsystem
system
requirements
requirements and
andload
loadlimitations.
limitations.
Rotor
Rotor
•• Rotor
Rotor construction
construction
The
The rotor
rotorconsists
consists of
ofaaspider
spideron
onwhich
which
the
field
poles,
amortisseur
(cage)
the field poles, amortisseur (cage)
windings
windingsand
andbrushless
brushlessexciter
exciterarmature
armature
are
mounted.
All
material
are mounted. All materialused
usedininthe
the
coil
coil insulation
insulationsystem
systemwill
willbe
beClass
ClassFF
material.
material.Field
Fieldcoils
coilsconsist
consistofofaacopper
copper
conductor
of
rectangular
conductor of rectangularwire
wireororcopper
copper
strap
strap with
witheach
eachlayer
layertreated
treatedwith
witha a
suitable
suitable filled
filledepoxy
epoxyresin
resinororarramid
arramid
fiber.
fiber.
Back-to-back load test of variable speed synchronous motors.
Ranges
Ranges
Output:
150,000 HP
Output: 400400
to to
150,000
HP
Speed:
150 to 3,600 RPM
Speed:
150
to
3,600
RPM
Voltage:
2,300 to 13,800 VAC
Voltage:
2,300
to 13,800
Power
factor:
0.8 leading
to 1.0 VAC
unity
Power factor: 0.8 leading
to 1.0 unity
Rotor
Advantages
• High efficiency
• Higher efficiency
Synchronous motors have a unique and
Synchronous motors have a unique and
merited position as the most efficient
merited position as the most efficient
electrical drive in the industry and are
electrical drive in the industry and are
often 1-2% more efficient than
often 1-2% more efficient than
induction motors.
induction motors.
• Power
factorfactor
correction
• Power
correction
Synchronous
motors
can operate
at at
Synchronous
motors
can operate
leading
powerpower
factors,
providing
VARs VARs
leading
factors,
providing
to thetopower
system,
reducing
demand
the power
system,
reducing
demand
charges
often often
caused
by induction
charges
caused
by induction
motors.
motors.
Rotor poles
poles
• Rotor
The rotor
rotorpoles
polesare
arecomprised
comprisedofofsteel
steel
The
laminationspressed
pressedand
andbolted
boltedtogether
together
laminations
to withstand
withstandrotational
rotationaland
andelectrical
electrical
to
stresses and are mounted
mounted totothe
thespider
spider
stresses
rim by
by bolts,
bolts,studs
studsorordovetails.
dovetails.The
The
rim
wire-woundpoles
polesare
arethen
thenepoxy
epoxy
wire-wound
bondedlayer-by-layer
layer-by-layertotohold
holdthe
the
bonded
windingsfirmly.
firmly.
windings
• Rotor cage bars
• Rotor
cage bars brazing of cage bars
Phosphorous-free
Phosphorous-free
of cage
prevents chemicalbrazing
corrosion
whichbars
can
prevents
chemical
corrosion
which
can
cause machine failure.
cause machine failure.
• Rotor shaft
The shaft
• Rotor
shaftwill be forged steel or rolled
steel,
accurately
machined
smoothly
The
shaft
will be forged
steeland
or rolled
finished
where required.
steel,
accurately
machined and smoothly
finished where required.
WARRANTY
Enclosures
Enclosures
Typical motor enclosures include DPG
Typical motor enclosures include DPG
(IC01/IP22), WP I (IC01/IPW23), WP II
(IC01/IP22), WP I (IC01/IPW23), WP II
(IC01/IPW24), TEWAC (IC817/IP54), and
(IC01/IPW24), TEWAC (IC817/IP54), and
TEAAC (IC611 or IC616/IP54).
TEAAC (IC611 or IC616/IP54).
Applications
Applications
Typical motor applications include
Typical motor applications include
compressors, pumps, blowers, and MG
compressors, pumps, blowers, and MG sets.
sets.
Bearings
Bearings
••Roller,
sleeve
oror
tilttilt
padpad
bearings
areare
Roller,
sleeve
bearings
designed
to
match
the
application.
designed to match the application.
Lubricationofofsleeve
sleevebearings
bearings
••Lubrication
is is
achievedthrough
througheither
eitherring
ringlubrication
lubrication
achieved
combinationofofring
ring
and
forced
ororaacombination
and
forced
lubrication.
lubrication.
• Extra large bearing oil reservoirs ensure
• Extra
largeoilbearing
ensure
a clean
supply oil
to reservoirs
the bearings.
aSpecial
clean oilbearing
supply designs
to the bearings.
available for
Special
designs available for
verticalbearing
applications.
vertical applications.
Stator
Stator
• Stator construction
• Stator construction
The stator is composed of a supporting
The stator is composed of a supporting
structure, a core of electrical laminations
structure, a core of electrical laminations
and insulated windings. High grade
and insulated windings. High grade
silicon steel laminations that build up
silicon steel laminations that build up
the core are precision punched from
the core are precision punched from
core-plated sheets. Pressed and held
core-plated sheets. Pressed and held
between end plates, these laminations
between end plates, these laminations
are stacked in the support structure and
are stacked in the support structure and
spaced for radial ventilation to ensure
spaced for radial ventilation to ensure
even cooling throughout the core. The
even cooling throughout the core. The
frame is welded and machined to
frame is welded and machined to
withstand stresses exerted by electrical
withstand stresses exerted by electrical
and mechanical forces in the core and
and mechanical forces in the core and
provide low vibration levels.
provide low vibration levels
Compressor drive in a petrochemical plant.
Statorwinding
windinginsulation
insulation
••Stator
TheDuraguard™
Duraguard™insulation
insulationsystem
systemisisa a
The
vacuumpressure
pressureimpregnated
impregnatedepoxymica
epoxy vacuum
mica insulation
that provides
insulation
systemsystem
that provides
ClassFFthermal
thermalcapability,
capability,outstanding
outstanding
Class
dielectricproperties,
properties,superior
superiormoisture
moisture
dielectric
andchemical
chemicalresistance
resistanceand
andthe
thesuperb
superb
and
mechanicalintegrity
integrityofofananepoxy
epoxyresin
resin
mechanical
system.ItItisisaasealed
sealedinsulation
insulationsystem
system
system.
capableofofpassing
passingthe
thewater
waterimmersion
immersion
capable
testasasspecified
specifiedby
byNEMA
NEMAMG
MG1 and
1 and
test
IEEE115.
115.Abrasion-resistant
Abrasion-resistantcoating
coatingis is
IEEE
availablefor
forprotection
protectioninindemanding
demanding
available
environments.
environments.
Experience
Experience
ConverteamEM
EMhas
hasover
overaacentury
centuryofof
Converteam
experience
in
designing,
manufacturing
experience in designing, manufacturing
and servicing
servicing large
large synchronous
synchronousmotors.
motors.
and
Service, Support & Upgrades
Service, Support & Upgrades
• Installation, commissioning and start-up
• Installation, commissioning and start-u
• Maintenance and field support
• Maintenance and field support
• Spares/replacement parts
• Spares/replacement parts
• Rebuilds and rewinds
• Rebuilds and rewinds
• Refurbishment/replacement
•Refurbishment/replacement
• Technical support.
• Technical support.
BrushlessExcitation
Excitation
Brushless
Thebrushless
brushless excitation
excitationsystem
systemeliminates
eliminates
The
periodicbrush
brushand
andcollector
collectorring
ring
periodic
maintenanceand
andreplacement.
replacement.Solid
Solidstate
state
maintenance
excitationcomponents
componentsare
arerated
rated
excitation
conservativelytotoprovide
providedependable
dependable
conservatively
service and
andlong
longlife.
life.Converteam
ConverteamEM’s
EM’s
service
Sync-Rite™ system
system applies
applies the
thefield
field
Sync-Rite™
automaticallyatatthe
theproper
properrotor
rotorangle
angle
automatically
to to
ensuresmooth
smoothsynchronization.
synchronization.
ensure
WARRANTY
Industrystandards
standards
Industry
ConverteamEM
EMmanufactures
manufacturessynchronous
synchronous
Converteam
motors
to
meet
all
current
industry
motors to meet all current industry
standardsincluding
includingNEMA
NEMAMG
MG1,1,IEEE
IEEE115,
115,
standards
IEC
60034,
API
546,
and
ISO
9001
IEC 60034, API 546, and ISO 9001
standards.Motors
Motorscan
canbe
bedesigned
designedtoto
standards.
match
your
existing
machines
space
match your existing machines space
limitations,
shaft
heights,
and
mounting
limitations, shaft heights, and mounting
foot
locations
to
minimize
installation
costs.
foot locations to minimize installation costs.
Converteam Electric Machinery
800 Central Avenue NE
Minneapolis, Minnesota 55413
United States
Tel: +1 612 378 8000
Fax: +1 612WEG
378 8051
Group
ElectricAmerica
Machinery
North
Headquarters:
800
Central
ConverteamAvenue
Inc. NE
Minneapolis,Pennsylvania
Minnesota 55413
Pittsburgh,
United
States
Tel: +1 412 967 0675
Tel: +1 612 378 8000
Fax: +1 612 378 8051
France
Tel: +33 1 77 31 20 00
www.electricmachinery.com
Germany
Tel: +49 30 76 22 0
UK
Brazil
Canada
China
India
Russia
Tel: +44 1788 563563
Tel: +55 31 3330 5800
Tel: +1 905 333 3667
Tel: +86 21 6442 1666
Tel: +91 44 2440 0900
Tel: +7 495 225 1916
www.converteam.com
© Electric Machinery 2011. Publication NA.10058.gb.01-11.01. Electric Machinery, the Electric Machinery logo and any version thereof are trademarks and service marks of Electric Machinery.
The other names mentioned, registered or not, are the property of their respective companies.
© Converteam 2011. Publication NA.10058.gb.01-11.01. Converteam, the Converteam logo and any version thereof are trademarks and service marks of Converteam.
The other names mentioned, registered or not, are the property of their respective companies.
Variable speed municipal pump drive.