Three-phase asynchronous asynchronous electric motors with a short-closed rotor of the types of VAO2-280, VAO2-315, VAO2-355 are designed to drive stationary machines and mechanisms in mines, hazardous gas and dust, as well as in explosive rooms of all classes and outer installations, where explosive hazardous are formed mixtures of gases, vapors or dust with air, attributed by explosion to the category of LLA, LLB and ignorance groups T1, T2, T3, T4.
Type of climatic performance and the category of placement of engines made for the needs of the national economy and for delivery to countries with a temperate climate - U2, 5; in areas with a cold climate - HL2, 5; For delivery to countries with wet and dry tropical climate - T2, 5.
The engines are designed to operate in a three-phase alternating current network with a frequency of 50 Hz, a voltage of 380 /660V up to 200 kW inclusive (with a power of more than 200 kW at a voltage of 660 V). At the request of the customer for voltages 400, 415, 440, 500 V up to 200 kW; 440, 500 V up to 250 kW at a frequency of 50 Hz; 380/660, 440 V up to 200 kW and 440 to 250 kW at a frequency of 60 Hz, as well as at a voltage of 1140/660 in explosion protection RV-3V for all sizes.
The degree of protection of electric motors-IP54; external fan from the air entrance? IP20. The heating resistance class of insulation is F and H. The overall and connective dimensions are shown in the figure and in table 2.
& Lt;
& amp; L
|
Typo Execution engine |
Nomin. Power kW |
Synchronous frequency rotations About./Min |
at nom. load |
mmax
|
Mubka
|
Impathetic
INU |
fly moment rotor N.M 2 |
mass kg |
||
|
Sliding % |
efficiency % | cos. ? | ||||||||
| VAO2-280 S2 | 132 | 3000, 3600 | 1.3 | 93,4 | 0.90 | 2.7 | 1.6 | 6.5 | 67 | 1020 |
| VAO2-280 m2 | 160 | 3000, 3600 | 1.3 | 93.8 | 0.91 | 2.7 | 1.7 | 7.0 | 78 | 1070 |
| VAO2-280 L2 | 200 | 3000, 3600 | 1.3 | 94.0 | 0.91 | 2.8 | 1.7 | 7.0 | 90 | 1130 |
| VAO2-315 m2 | 250 | 3000, 3600 | 1.2 | 94,2 | 0.91 | 2.8 | 1.5 | 7.0 | 116 | 1400 |
| VAO2-315 L2 | 315 | 3000, 3600 | 1.2 | 94.7 | 0.91 | 2.8 | 1.6 | 7.0 | 144 | 1600 |
| VAO2-280 S4 | 132 | 1500, 1800 | 1.3 | 93.9 | 0.88 | 2.6 | 2.0 | 6.5 | 130 | 1020 |
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