NEMA 표준 60Hz
 
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제목 TEFC - W22 IEEE-841™ NEMA Premium® Efficiency


Description

WEG's W22 NEMA Premium motors meet or exceed all NEMA Premium® requirements for energy efficiency.
These WEG IEEE 841 W22 NEMA Premium Efficiency Mill and Chemical Duty Motors are specially suited for Pulp and Paper Mills, Petrochemical, Steel Mills and applications requiring Severe Duty long life motors.

Applications
  • Pumping applications;
  • Pulp and paper mills;
  • Petrochemical;
  • Standard Features
  • Three-phase, 2, 4, 6 or 8 pole, 60Hz;
  • Voltage: 460 or 575V (3 wire);
  • Totally enclosed fan cooled (TEFC);
  • Degree of protection: IP55;
  • Class "F" insulation ("B" Temperature rise at full load);
  • 104°F (40ºC) ambient temperature;
  • Service Factor:
    - 1.25 - up to 100 HP;
    - 1.15 - from 125HP and up;
  • Squirrel cage rotor / Aluminum die cast;
  • 143T up to 586/7 cast iron frame;
  • All cast iron reinforced construction: frame, endshields, terminal box and fan cover;
  • F1 mounting;
  • Stainless steel nameplate;
  • INPRO/SEAL® on drive end and opposite drive end;
  • External paint: Epoxy polyamide enamel, meets 240h salt spray as per ASTM B117-03;
  • Internal corrosion resistant epoxy finish;
  • Color: RAL 5009 (Blue);
  • Regreasable ball bearings D.E. and O.D.E.;
  • Grease outlet through the fan cover;
  • High tensile steel shaft (for frame 404T and up – 4 poles and up);
  • Fan: Conductive plastic or Bronze;
  • “T” type stainless steel condensate drain;
  • Balance quality grade G1;
  • Solid milled feet;
  • Foot flatness 0.005 in (0.127 mm);
  • Hex-head bolts or socket-head cap srews and organometalic surface lining;
  • Stainless steel grease inlet extension;
  • Minimum Bearing life L10h: 50,000 hours for directed-connected loads and 26,280 hours belted.

  • Optional Features
  • Special voltages;
  • Specially designed shaft;
  • Space heaters;
  • Thermostats or RTD's (Pt-100);
  • Additional terminal box;
  • Drip cover (canopy) for shaft down applications;
  • Cable glands;
  • Terminal block;
  • Flange mounting;
  • Roller bearings.
  • Notes

    All motors supplied with IEEE 841 Test ReportAll WEG motors are energy efficiency verified by CSA and UL in addition to the DOE.