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    3 hp (2.2kW) 3 phase 2 pole AC Induction Motor

    3 hp/2.2kW three-phase induction motor features 2 poles, 2875rpm rated speed and 7.3Nm nominal torque, with servral voltages of 380V, 400V, 415V and 525V for the option and it has outstanding performance in the price, mantenance, reliability, durability and operation.
    SKU: ATO-YE2-90L-2
    Free shipping
    Delivery date: 6-12 days

    This is a totally enclosed fan cooled 3-phase 4-pole induction motor with rated output 3 hp, rated speed 2875rpm in foot mounting. It can widely used in various kinds of general purpose machineries like fans, pumps, compressors, machine tools, transportation and it can also be used in the hazardous areas such as petrochemical, mining, steel industries.


    Basics Model ATO-YE2-90L-2
    Design Standard IEC
    Weight 30kg
    Mounting Horizontal Foot Mounting
    Frame Size 90L (compliance to IEC60034)
    Enclosure Totally Enclosed
    Degree of protection IP55 according to IEC600034-5
    Cooling TEFC(compliance to IC 411 code of IEC 60034-6)
    Efficiency Class IE2 according to IEC60034-30-2008
    Technical Parameters Nominal Output 3hp or 2.2kW
    Pole Number 2-pole
    Nominal Speed 2875rpm
    Frequency 50Hz
    Nominal Voltage 380V 400V 415V 525V
    Nominal Current(IFL) 4.7A 4.4A 4.3A 3.4A
    Locked Rotor Current/IFL 7.4
    Efficiency 83.2%
    Power Factor( cosφ) 0.86
    Nominal Torque 7.3Nm
    Locked Rotor Torque/TFL 2.4
    Maximum Torque/TFL 2.6
    Moment of Interia 0.003kgm²
    Noise Level 67dB(A)
    Vibration Level Grade A
    Insulation Class Class F/Class B
    Environment Ambient Temperature -20℃+40℃
    Altitude Less than 1000m above sea level

    three phase induction motor foot mounting B3

    Frame Size A AA AB AC AD' B BB C D E ED F G GD H HA HD K KK L LG
    90L 140 36 180 195 150 125 210 56 24 50 32 8 20 7 90 12.5 260 10 M24*1.5 390 126

    Wiring Diagrams (Three-phase squirrel-cage induction motor)
    3 phase induction motor wiring connection diagram
    Tips: Three-phase induction motor’s speed control method
    Three-phase induction motor speed is calculated: n = 60f (1-s) / p
    It is seen from the above formula that changing power supply frequency f, motor pole pairs p and slips can achieve the purpose of changing the rotate speed. From the perspective of the nature of speed control, different speed control methods are nothing more than changing the synchronous speed of alternating current motor or not changing the synchronous speed. The speed control method of not changing the synchronous speed is widely used in manufacturing machinery including series resistance in the rotor of wound-type motor, chopper, cascade and electromagnetic slip clutch, hydraulic coupling, oil film clutch etc. Changing the synchronous speed consists of multi-speed motor of stator pole pairs, stator voltage and frequency conversion etc.
    In views of energy consumed at speed control, there are two types including high-efficiency speed control and low-efficiency speed control. High-efficiency speed control refers to constant slip or non-slip loss, such as multi-speed motor, frequency control and control method of recovering the slip loss (for instance cascade speed control etc.). Slip loss speed control method is inefficient for example energy loss occur in the rotor circuit  by the speed control method of series resistance in the rotator; Energy loss happens in the clutch coil by the speed control method of electromagnetic clutch; energy loss takes place in the hydraulic couplers oil by the speed control method of hydrodynamic coupling. Generally speaking, the slip loss increases with the expansion of speed range. If the speed range is not large, the energy loss will be very small.

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