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Induction motors enclosures

Safety Standards (enclosures) for construction and guide for selection, installation and use of rotating machines Sound level prediction for insulated rotating electrical machines Energy management guide for selection and use of three phase motors Polyphase induction motors for power generating stations... [Pg.193]

Induction motors are most popular. Synchronous motors are made for speeds as low as 150 rpm and are thus suited for example for low speed reciprocating compressors, but are not made smaller than 50 HP. A variety of enclosures is available, from weather-proof to explosion-proof. [Pg.841]

Cage induction motor, flameproof enclosure, with terminal box in increased safety ... [Pg.117]

It should be emphasized that this fact does not exclude the penetration of combustible mixtures into the enclosure s interior. Generally, all internal parts or components shall be considered to be exposed to these mixtures. The gas exchange between external and internal atmospheres is caused by operational load cycles of the apparatus and the thermal cycles derived thereby. The following calculation will demonstrate this fact a cage induction motor with internal free volume ymot is running in an external atmosphere with a temperature... [Pg.174]

Figure 6.88 Longitudinal section drawing of a flameproof cage induction motor, bearings outside the flameproof enclosure. Type of protection EEx de IIC T4. Figure 6.88 Longitudinal section drawing of a flameproof cage induction motor, bearings outside the flameproof enclosure. Type of protection EEx de IIC T4.
Today s standard motor enclosure for indoor applications is the open, drip-proof enclosure for induction and high-speed synchronous motors. For large motors, open, drip-proof construction is available up to about 20,000 hp and is used for squirrel-cage, synchronous, and wound-rotor motors. [Pg.259]

Molecular weight, effect on centrifugal sizing, 159 Mollier charts, 27 Monitoring system, 356 Motor, 146 enclosure, 260 equations, 267 insulation, 257 locked rotor torque, 270 selection, 270 service factor, 262 starting characteristics, 270 starting time, 273, 274 synchronous vs induction, 265 variable frequency drives, 27/, 280 voltage, 258 Motors... [Pg.548]

Motors shall be squirrel cage induction type with (totally enclosed, fan-cooled) (encapsulated) (splashproof) enclosure and roller-type bearings with NEMA Class A insulation. Motors shall be (single... [Pg.174]

Electric motors select synchronous for low speed usual application for either synchronous or induction 500 to 2100 rpm 150 to 500 kW. Usually use total enclosed Fan cooled (TEFC) enclosure, efficiency 84 to 95%. [Pg.1360]

See other pages where Induction motors enclosures is mentioned: [Pg.2491]    [Pg.33]    [Pg.996]    [Pg.417]    [Pg.39]    [Pg.54]    [Pg.229]    [Pg.423]    [Pg.488]    [Pg.2246]    [Pg.2495]    [Pg.82]    [Pg.125]    [Pg.568]    [Pg.135]    [Pg.781]    [Pg.2487]    [Pg.77]    [Pg.77]    [Pg.605]    [Pg.2242]    [Pg.952]    [Pg.957]    [Pg.785]    [Pg.2491]    [Pg.89]    [Pg.387]   


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