Severe Duty is standard with WEG W22 Motors (Presentation)

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Features and Benefits
 Design
 Terminal Box
 Name Plate
 Construction
 Cooling System
 Support
 Lubrication System
 Insulation system
 Certification
 Seals
 Electrical
W22
Designed with High Tech Tools
FEA
Analysis
Motor CAD
Thermal Analysis
Ansys
Mechanical Analysis
Built to Last from the Inside Out!
 NEMA Premium Electrical Designs
with High Torques and low
temperature rise for reliable
performance and long life.
 Nameplate Includes:
– Division 2 and VFD Data
– Relubrication data
 Four Bolt Conduit Box cover with
glued Neoprene Gasket.
 841 and Cooling Tower Box has
 1.25SF through 100HP.
Neoprene gasket to frame.
 Use Premium grade silicon
steel laminations.
– C4 core plated* laminations
to insure quality core and
allow rewinds back to full
efficiency.
 Bracket fits machined with
reference to id of stator core
to maximize stator to rotor
concentricity and minimizing
stray load losses and
vibration.
Typical vibration level is
better than .08"/Sec
 WEG Coatings Paint
system exceeds 200hrs
ASTM 117 Salt fog
corrosion test.
 FC200 High strength Cast
 Special Corrosion proof
iron Frame, Brackets, and
Conduit box.
Drains in Both brackets.
 WEG Exclusive Wise Insulation system for
long life on sine wave and VFD operation.
W22
Drain
Reliable Operation
Drain plug positioned at the lowest position.
Its tough design provides high resistance
against vibration and impacts.
Auto Drain / Plug
All W22 Motors are fitted with
rubber drain plugs that allow
continuous condensed water
draining from the motor (drain
plug at open position IP55)
and, depending on the motor
application, the drain plug can
be closed to ensure the
degree of protection IP66 in
the drain region.
End Shields
The End Shield Designs Focus on Temperature,
Noise and Mechanical Stiffness.
 The drive end shield has a finned design for a better
heat dissipation.
 The non-drive end end shield has a smooth area,
which contributes to noise level reduction.
 The bracket to frame bolt area is reinforced to
provide the motor with a stronger structure.
 Grease channels from inner side
through bearing for complete
Lubrication every time.
Lubrication Systems
– Effective for Long Life
 WEG motors are designed using re-greasable bearings with
bearing retainer caps and the exclusive Positive Pressure
Lubrication System, (254T and larger Standard).
 WEG uses large drive end bearings for long bearing life.
 ExxonMobil PolyRex EM grease.
Bearing Lubrication
Same sidee
WEG positivee
pressuree
W22
Sealing System
Exclusive WSeal® Sealing System
Motors in frame sizes 364T to 449T are equipped with the WSeal
Sealing System. Composed of a double-lip V-ring and a metallic
cap, it provides a high degree of protection against dust and liquids
entrance to the motor bearings.
This metallic cap
provides additional
UV and mechanical
protection.
W22 motors in frame sizes
143T to 326T are equipped
with the proven V-ring seal
operating on a machined
surface for IP55 degree of
protection.
Lubrication Systems Seals
– Options
Slinger
 V-Ring
 Umbrella
Contact
 Lip Seal
 Oil Seal
Labyrinth Seal
 Taconite
 Inpro/Seal
 W3
W22
Terminal Box
 The terminal box is oversized, allowing easier
installation of leads and accessories.
 Simple and adaptable technology through the use of an
adaptor to mount the terminal box on top, left or right
side of the motor on larger frames (447T up to 586/7T).
Cooling System
 The ventilation system consists of fan, fan cover and
motor fins.
 The fan cover with aerodynamic design directs the full
air flow over the motor while decreasing the noise level.
 The fan design contributes to noise level reduction and
also mechanical losses optimization.
Frame
 447T up to 586/7T: The terminal box is on top DE of the frame.
Consequently there is a single design to cover terminal box mounting
on top, left or right side of the motor.
 143/5T up to 444/5T: The frame has the cable outlet centered in the
frame to maximize the installed base MRO compatibility.
 All W22 series have solid feet suitable for high vibration level
application and allow easy installation. Typical vibration level is
better than .08"/Sec
 Cast slots at base allow for special handling such as wall mounting.
Insulation System
 All W22 (245T+)
use very low loss
silicon Steel with
C4 coating.
 Withstands
burnout
temperatures to
500C without
efficiency impact.
Insulation System
 Both coil heads
securely laced for
added strength.
 The Continuous Flow
insulation system,
developed by WEG,
incorporates Class H
materials and provides
a superior core
penetration while
virtually eliminating
any trapped air
bubbles.
W22
Electrical Design – Low Voltage
WISE Insulation System®
 W22 motors are fitted with WISE
insulation (WEG Insulation System
Evolution) which permits them to
operate driven by VFD.
 The WISE® is a system composed of:
class H insulation wire (200°C),
superior insulation materials and a
solvent-free resin, (dip and bake 326T
and smaller).
VFD Capable per MG1 Part 31
High Performance Design
 Exclusive lamination design (stator
and rotor )
 Aluminum squirrel cage die cast rotor
Strength
 1.25SF 100HP and below (Most competitors
1.15SF) - The higher service factor supports
good performance in adverse conditions such
as, low line volts, overloads, Voltage
imbalance… for superior reliability.
 High Torque - WEG continues to
offered some of the strongest
motors in the industry, for
trouble free application.
VFD Capability As Standard
 Wide Speed Range As Standard:
– 20:1 Constant Torque (NEMA Premium)
– 1000:1 Variable Torque
– 60-90Hz Constant HP (4-Pole and slower)
 WISE Insulation Exceeding MG1 Part 31 for Voltages up to 575V.
 Class H Wire and Varnish With Class B Temperature Rise.
 Fan Cover has Center Knock Out for Stub Shaft Mounting.
 Rigid Structure to Minimize Vibration.
 Continuous Resin Flow Impregnation Eliminates Destructive
Corona (364 and larger).
 Div 2 on VFD Certified as Standard:
– Class I Groups A,B,C & D – T3
– Class II Groups F&G
Nameplates
 250 HP and below are dual rated for 50 and 60 Hz with the
same power.
 All ratings include Div 2/Zone 2 rating and IP 55 as standard
 Bearing sizes in standard terminology.
 Re-greasing recommendation.
 Connection diagrams.
 VFD Service.
Features & Benefits
Upfront Design and
Software Support
 W22 NEMA technical catalog.
 42 pages of technical data.
 Accessible via web through
– www.weg.net/us
 Data and drawings by catalog number.
– Accessible via web through www.weg.net/us
– Technical data
– 2D cad drawings
– 3D cad drawings
– Detailed installation and maintenance manual.
W22 Super Premium
 Two efficiency bands over Premium Motors.
 High Torques ( 40 - 50% >> High Efficiency).
 1.25 Service Factor through 447T.
 All Silicon C4 coated lamination steel.
 Very low noise.
 50Hz without derating up to 447/9T (350HP/4p)
and IE3 @ 400V.
 Design A (LRA 15-25% over Design B).
Certifications
Features that make a difference:
 All Cast Iron Construction, including Terminal Box and Fan Cover*
 High Grade FC200 cast iron provides superior mechanical strength and
heat dissipation
 IP55 Degree of Protection to protect against ingress of water and dust
 Exclusive W-Seal 364T and larger provides superior bearing protection
 Taconite Labyrinth seal 586 Frame and larger
 Exclusive WEG painting system exceed 200hrs ASTM 117 corrosion test
(Exceeds IEEE841 standard)
 Balanced to 0.08 inches per second vibration limits (Meets IEEE841
standard)
 Four Bolt Conduit Cover with glued Neoprene Gasket
 Stainless Steel nameplate
 Corrosion Proof Drains
 Inverter Duty per NEMA MG1, Part 31
 Certified Class I Div 2, Groups A, B, C & D; Class II, Div 2, Groups F & G
*Cast Iron fan cover available as option 143-215T frames