This standard specifies the types, basic parameters and dimensions, technical requirements, inspection rules, and requirements for marking, packaging and warranty period of Y series (IP23) induction motor.
This standard is applicable to Y series (IP23) three-phase induction motor (frame size 160~355) (hereinafter referred to as "motor"), and all other series motors derived from Y series (IP23) three-phase induction motor may also refer.
Contents Foreword I 1 Scope 2 Normative References 3 Types, Basic Parameters and Dimensions 4 Technical Requirements 5 Inspection Rules 6 Marking, Packaging and Warranty Period Table 1 Corresponding Relation between Frame Size and Rotating Speed & Power Table 2 Motor with Foot on Frame and No Flange on End Cover Table 3 Dimensions and Tolerances of Key Table 4 Radial Circular Runout Tolerance Table 5 Parallelism Tolerance Table 6 Flatness Tolerance Table 7 Symmetry Tolerance of Key Groove Table 8 Guarantee Values of Efficiency and Power Factor Table 9 Guarantee Ratio of Locked-rotor Torque to Rated Torque Table 10 Guarantee Ratio of Minimum Torque to Rated Torque Table 11 Guarantee Ratio of Maximum Torque to Rated Torque Table 12 Guarantee Ratio of Locked-rotor Current to Rated Current Table 13 Tolerance of Guarantee Value of Electrical Performance Table 14 Interval Time after Power-off Table 15 Vibration Strength Limits (Root-mean-square Values) for Different Shaft Center Heights Expressed with Displacement, Speed and Acceleration Table 16 Noise of A-weighted Sound Power Level under No Load Table 17 Noise of A-weighted Sound Power Level under Load Table 18 Mark at Outlet Terminal
