1 Scope
This standard specifies the types, basic parameters and dimensions, technical requirements, inspection rules, and requirements for marking, packaging and warranty period of YR series (IP44) wound-rotor three-phase induction motor.
This standard is applicable to YR series (IP44) wound-rotor three-phase induction motor (frame size 132~315) (hereinafter referred to as "motor"), and all other series motors derived from YR series (IP44) wound-rotor three-phase induction motor may also refer.
Contents
Foreword I
1 Scope
2 Normative Reference
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 Motor with Foot on Frame and Flange (with Through-hole) on End Cover
Table 4 Motor with No Foot on Frame and Flange (with Through-hole) on End Cover
Table 5 Flatness Tolerance
Table 6 Parallelism Tolerance
Table 7 Dimensions and Tolerances of Key
Table 8 Symmetry Tolerance of Key Groove
Table 9 Radial Circular Runout Tolerance
Table 10 Circular Runout Tolerance
Table 11 Efficiency and Power Factor of Motor
Table 12 Guarantee Values of Open Circuit Voltage and Rated Current of Motor Rotor
Table 13 Allowance of Guarantee Value of Electrical Performance
Table 14 Effective Value of Vibration Speed Under No Load
Table 15 Noise of A-weighted Sound Power Level Under No Load
Table 16 Mark at Outlet Terminal
