FIELD: engines and pumps.
SUBSTANCE: in asynchronous motor the following is used: semi-open (up to 2.2 mm) rotor slots of special design without chamfer with transition at the height of 1 mm to wide part of the slot top; stator slots having upper part of arched design and maximum opening up to 4 mm on condition that number of pairs of poles 2p = 6 - 12 is chosen so that frequency of supply voltage is not lower than 4 Hz, with rigid matching of ratio of numbers of rotor slots of 66-130 and stator slots of 54 - 108 at the number of rotor slots more than number of stator slots by 20%; stator winding with number of slots per pole and phase is at least 2; magnetic system made from steel having high values of induction without connection to value of specific losses.
EFFECT: higher energy data and overload capacity of electric motor, including at its operation in generator mode.
2 dwg, 1 tbl
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|
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| 0 |
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| COMBINED ELECTRIC PROPULSION PLANT OF OPEN TYPE | 2006 |
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| ELECTRIC MOTOR OF MINING MILL OF DIRECT DRIVE SYSTEM | 2010 |
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| CONTROLLABLE A C ELECTRIC MOTOR DRIVE | 1992 |
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RU2035839C1 |
| ASYNCHRONOUS THREE-PHASE ELECTRIC ENGINE | 2018 |
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RU2759161C2 |
