A variable frequency drive is an electronic device that allows you to start, stop, and control the speed of a three phase motor. It is also a motor starter as it is equipped with overload protection. Read more »
What is the difference between a 'new surplus' motor and a 'factory new' motor?
Our New Surplus electric motors and drives are new and unused overstock or discontinued items offered at lower prices and come with our 90-day warranty.
Factory New products are competitively priced and come with a manufacturers warranty.
Variable frequency drives (VFDs or inverters) now play an important part in major industry.
Within the last 10 years they have been perfected to control and vary the speed of 3 phase electric motors. They serve many purposes, besides speed control. Homeowners and hobbyist alike, who have lathes or milling machines with a 3 phase motor, usually don't have 3 phase power to operate. These VFDs (instead of using a rotary phase converter) can now be used to convert single phase power to 3 phase power. Read more »
Electric Motors
: Definite Purpose Motors
: W22 Cooling Tower Motors: NEMA Premium - TEFC
Catalog Number: 02518ET3ECT284TF1-W2
WEG id: 11972740
Description
WEG’s W22 Cooling Tower - NEMA Premium Efficiency motors meet or exceed all NEMA Premium and CEE requirements for energy efficiency. These TEFC motors are built according to NEMA specifications and designed for operation in 100% humidity and the most corrosive environments. The entire line is certified Inverter Rated for use with a VFD. They are designed to operate in either horizontal or shaft up position. As with any other WEG motor, Cooling Tower motors are tested in accordance with IEEE 112, Method B, and their efficiency values are certified by UL Labs (CSA C390). Cooling Tower motors will meet Design B torques, maintaining exceedingly high breakdown and locked rotor torque while providing the highest rated efficiency levels.
Applications
Cooling Tower
Evaporative Condensers
Chemical plants
Pulp and paper mills
Pumps
Fans
Packaging equipment Packaging equipment
Standard Features
Three-phase, II, IV, VI, VIII, 60 Hz
Voltage: 208-230/460V, 200V, 460V or 575V
Totally Enclosed Fan Cooled – TEFC (IP55) water tight and dust tight enclosure
Multiple Endbell Drains for shaft up, down or horizontal mounting
Rubber drain plugs on T-Box and drive-end endshield
Rubber Lead Separator (isolator) between T-Box and Frame
Joint Seal
Internally and Externally Epoxy painted (202E painting plan)
V-ring slingers for frames 143T to 326T and WSeal for frames 364/5T to on both endshields
External Slinger (Umbrella Seal)
Double Sealed - 2RS Ball Bearings for frames up to 445/7T (excluding 364/5T, 404/5T and 445/7T II-pole motors)
NEMA dimensions
Double Impregnation and Bake for frames 143T to 326T and Continuous Resin Flow for frames 364/5T to 588/9
Class ‘F’ insulation for all frames
Class ‘H’ resin insulation system
Temperature rise: Class ‘B’ (80ºC)
NEMA Design ‘B&rsquo
Most ratings meet Design C Torque
Service factor:
1.25 up to 100HP
1.15 from 125HP & up
Continuous duty (S1)
NPT threaded terminal box
F2 mount
Color: RAL 5009
Stainless steel nameplate AISI 316 with laser etching
MGI Part 31 rating for use with VFD - 1000:1 Variable Torque speed range
Optional Features - Call Dealers for information on price and availability of optional features
Special voltages
Specially designed shaft
Thermistor, Thermostats or RTD’s (PT100)
Space Heaters
Additional terminal box
Drip cover (canopy) for shaft down applications
Cable glands
'C' and 'D' flanges for all ratings
W3Seal and Labyrinth Taconite Seal available on all ratings
Notes
Design B torque rating on nameplate can be re-plated for Design C. All motors are tested according to IEEE 112 Std. - Method ‘B’ or C390 CSA. Energy efficiency motors verified by UL in addition to the DOE.
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