Three-Phase Induction Machine Design File: MotorDaten.res GENERAL DATA Given Output Power (kW): 27.174 Rated Voltage (V): 64 Winding Connection: Delta Number of Poles: 4 Given Speed (rpm): 4119 Frequency (Hz): 140 Stray Loss (W): 271.74 Frictional Loss (W): 0 Windage Loss (W): 0 Operation Mode: Motor Type of Load: Constant Torque Operating Temperature (C): 85 STATOR DATA Number of Stator Slots: 48 Outer Diameter of Stator (mm): 195 Inner Diameter of Stator (mm): 125 Type of Stator Slot: Edited Symmetric Slot Type Info (mm) 1 End Width: 3 Line Edge: 0 2 Height: 1 End Width: 5 2 Height: 14 End Width: 6 1 End Width: 0 Line Edge: 0 Top Tooth Width (mm): 3.73446 Bottom Tooth Width (mm): 3.73446 Length of Stator Core (mm): 200 Stacking Factor of Stator Core: 0.65 Type of Steel: steel_1010 Number of lamination sectors 1 Press board thickness (mm): 0 Magnetic press board No Number of Parallel Branches: 4 Type of Coils: 21 Coil Pitch: 8 Number of Conductors per Slot: 8 Number of Wires per Conductor: 12 Wire Diameter (mm): 0.861 Wire Wrap Thickness (mm): 0 Wedge Thickness (mm): 0 Slot Liner Thickness (mm): 0 Layer Insulation (mm): 0 Slot Area (mm^2): 81 Net Slot Area (mm^2): 77 Slot Fill Factor (%): 92.4244 Limited Slot Fill Factor (%): 75 **** Warning - Result is Unfeasable **** Slot Fill Factor is beyond its limited value. Wire Resistivity (ohm.mm^2/m): 0.0217 Conductor Length Adjustment (mm): 0 End Length Correction Factor 1 End Leakage Reactance Correction Factor 1 ROTOR DATA Number of Rotor Slots: 56 Air Gap (mm): 0.25 Inner Diameter of Rotor (mm): 64.5 Type of Rotor Slot: Edited Symmetric Slot Type Info (mm) 1 End Width: 2 Line Edge: 0 2 Height: 1 End Width: 4 2 Height: 15 End Width: 3 6 Radius: 1 1 End Width: 0 Line Edge: 0 Cast Rotor: No Half Slot: No Length of Rotor (mm): 200 Stacking Factor of Rotor Core: 0.95 Type of Steel: steel_1010 Skew Width: 1 End Length of Bar (mm): 0 Height of End Ring (mm): 20 Width of End Ring (mm): 8 Resistivity of Rotor Bar at 75 Centigrade (ohm.mm^2/m): 0.0217391 Resistivity of Rotor Ring at 75 Centigrade (ohm.mm^2/m): 0.0217391 Magnetic Shaft: Yes MATERIAL CONSUMPTION Armature Copper Density (kg/m^3): 8900 Rotor Bar Material Density (kg/m^3): 8900 Rotor Ring Material Density (kg/m^3): 8900 Armature Core Steel Density (kg/m^3): 7872 Rotor Core Steel Density (kg/m^3): 7872 Armature Copper Weight (kg): 7.24372 Rotor Bar Material Weight (kg): 5.7885 Rotor Ring Material Weight (kg): 0.934988 Armature Core Steel Weight (kg): 14.0251 Rotor Core Steel Weight (kg): 8.45725 Total Net Weight (kg): 36.4495 Armature Core Steel Consumption (kg): 40.1198 Rotor Core Steel Consumption (kg): 24.3141 RATED-LOAD OPERATION Stator Resistance (ohm): 0.00778079 Stator Resistance at 20C (ohm): 0.00620031 Stator Leakage Reactance (ohm): 0.0178939 Rotor Resistance (ohm): 0.00417549 Rotor Leakage Reactance (ohm): 0.0220749 Resistance Corresponding to Iron-Core Loss (ohm): 690743 Magnetizing Reactance (ohm): 0.87126 Stator Phase Current (A): 169.76 Current Corresponding to Iron-Core Loss (A): 8.88733e-005 Magnetizing Current (A): 70.4596 Rotor Phase Current (A): 150.677 Copper Loss of Stator Winding (W): 672.692 Copper Loss of Rotor Winding (W): 284.394 Iron-Core Loss (W): 0.0163674 Frictional and Windage Loss (W): 0 Stray Loss (W): 271.74 Total Loss (W): 1228.84 Input Power (kW): 28.6532 Output Power (kW): 27.4244 Mechanical Shaft Torque (N.m): 62.9998 Efficiency (%): 95.7113 Power Factor: 0.870758 Rated Slip: 0.0102637 Rated Shaft Speed (rpm): 4156.89 NO-LOAD OPERATION No-Load Stator Resistance (ohm): 0.00778079 No-Load Stator Leakage Reactance (ohm): 0.0179627 No-Load Rotor Resistance (ohm): 0.0041747 No-Load Rotor Leakage Reactance (ohm): 0.0221321 No-Load Stator Phase Current (A): 71.9696 No-Load Iron-Core Loss (W): 0.0170765 No-Load Input Power (W): 406.822 No-Load Power Factor: 0.00977566 No-Load Slip: 5.01157e-006 No-Load Shaft Speed (rpm): 4199.98 BREAK-DOWN OPERATION Break-Down Slip: 0.14 Break-Down Torque (N.m): 340.048 Break-Down Torque Ratio: 5.39761 Break-Down Phase Current (A): 1297.22 LOCKED-ROTOR OPERATION Locked-Rotor Torque (N.m): 243.065 Locked-Rotor Phase Current (A): 2086.94 Locked-Rotor Torque Ratio: 3.85819 Locked-Rotor Current Ratio: 12.2935 Locked-Rotor Stator Resistance (ohm): 0.00778079 Locked-Rotor Stator Leakage Reactance (ohm): 0.0134005 Locked-Rotor Rotor Resistance (ohm): 0.0084267 Locked-Rotor Rotor Leakage Reactance (ohm): 0.0128944 DETAILED DATA AT RATED OPERATION Stator Slot Leakage Reactance (ohm): 0.0115472 Stator End-Winding Leakage Reactance (ohm): 0.00259352 Stator Differential Leakage Reactance (ohm): 0.00375323 Rotor Slot Leakage Reactance (ohm): 0.0126627 Rotor End-Winding Leakage Reactance (ohm): 0.00230976 Rotor Differential Leakage Reactance (ohm): 0.00529057 Skewing Leakage Reactance (ohm): 0.00181191 Stator Winding Factor: 0.82936 Stator-Teeth Flux Density (Tesla): 1.87665 Rotor-Teeth Flux Density (Tesla): 1.61939 Stator-Yoke Flux Density (Tesla): 1.52364 Rotor-Yoke Flux Density (Tesla): 0.45888 Air-Gap Flux Density (Tesla): 0.556808 Stator-Teeth Ampere Turns (A.T): 210.978 Rotor-Teeth Ampere Turns (A.T): 76.4359 Stator-Yoke Ampere Turns (A.T): 91.6571 Rotor-Yoke Ampere Turns (A.T): 5.05264 Air-Gap Ampere Turns (A.T): 212.652 Correction Factor for Magnetic Circuit Length of Stator Yoke: 0.419398 Correction Factor for Magnetic Circuit Length of Rotor Yoke: 0.7 Saturation Factor for Teeth: 2.35157 Saturation Factor for Teeth & Yoke: 2.80635 Induced-Voltage Factor: 0.959197 Stator Current Density (A/mm^2): 6.07433 Specific Electric Loading (A/mm): 41.4999 Stator Thermal Load (A^2/mm^3): 252.084 Rotor Bar Current Density (A/mm^2): 3.68905 Rotor Ring Current Density (A/mm^2): 5.97918 Half-Turn Length of Stator Winding (mm): 303.363 WINDING ARRANGEMENT The 3-phase, 2-layer winding can be arranged in 12 slots as below: AAAAZZZZBBBB Angle per slot (elec. degrees): 15 Phase-A axis (elec. degrees): 82.5 First slot center (elec. degrees): 0 TRANSIENT FEA INPUT DATA For one phase of the Stator Winding: Number of Turns: 64 Parallel Branches: 4 Terminal Resistance (ohm): 0.00778079 End Leakage Inductance (H): 2.94837e-006 For Rotor End Ring Between Two Bars of One Side: Equivalent Ring Resistance (ohm): 8.22221e-007 Equivalent Ring Inductance (H): 3.11596e-009 2D Equivalent Value: Equivalent Model Depth (mm): 200 Equivalent Stator Stacking Factor: 0.65 Equivalent Rotor Stacking Factor: 0.95 Estimated Rotor Inertial Moment (kg m^2): 0.0367961 http://www.engineeringtoolbox.com/electrical-motors-torques-d_651.html