The test procedure specified in this standard is applicable to three-phase induction motors.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative document is applicable to this standard.
Foreword I 1 Scope 2 Normative References 3 Main Symbols 4 Test Requirements 4.1 General 4.2 Test Power Supply 4.3 Measuring Instrument 4.4 Measurement Requirements 5 Test Preparation 5.1 Determination of Insulation Resistance 5.2 Determination of DC Terminal Resistance of Winding in Initial (Cold) State 5.3 Determination of Rotor Voltage 6 No-load Test 6.1 Determination of No-load Current and No-load Loss 6.2 Determination of Iron Loss PFe and Windage and Friction Loss PfW 7 Locked-rotor Test 7.1 Locked-rotor Test at Rated Frequency 7.2 Low-frequency Locked-rotor Test 8 Load Test 8.1 General 8.2 Rated Voltage Load Test 9 Determination of Losses 9.1 Stator Winding I2R Loss at Specified Temperature 9.2 Rotor Winding I2R Loss at Specified Temperature (also including Brush Electric Loss for Wound Rotor Motor) 9.3 Iron Loss PFe 9.4 Windage and Friction Loss Pfw 9.5 Load Stray Loss 9.6 Determination of Total Loss and Output Power 10 Determination of Efficiency 10.1 General 10.2 Efficiency Test Methods 10.3 A Method——Input-output Method 10.4 B Method or B1 Method——Loss Analysis Method for Measuring Input-output Power 10.5 C Method or C1 Method——Feedback Method 10.6 E Method or E1 Method——Loss Analysis and Electric Power Measurement 10.7 F Method or F1 Method——Equivalent Circuit Technique 10.8 G Method or G1 Method——Undervoltage Load Method 10.9 H Method——Circle Calculation Method 11 Thermal Test 11.1 Purpose 11.2 General Description 11.3 Temperature Measurement Methods 11.4 Temperature Reading 11.5 Determination of Cooling Medium Temperature during the Thermal Test 11.6 Temperature Determination of Motor Winding and Other Parts 11.7 Test Method 11.8 Temperature Rise 12 Determination of Maximum Torque 12.1 General Description 12.2 Dynamometer or Calibrated DC Motor Method 12.3 Torque Meter Method 12.4 Torque Speed Meter Method 12.5 Circle Calculation Method 12.6 Conversion of Maximum Torque 13 Determination of Minimum Torque 13.1 General 13.2 Dynamometer or Calibrated DC Motor Method 13.3 Torque Meter Method 13.4 Torque Cycloscope Method 13.5 Conversion of Minimum Torque 14 Other Tests 14.1 Overspeed Test 14.2 Determination of Noise 14.3 Determination of Vibration 14.4 Short-time Overtorque Test 14.5 Withstand Voltage Test 14.6 Determination of Moment of Inertia 14.7 Determination of Shaft Voltage 15 Calculation Format 15.1 A Format——A Method 15.2 B Format——B(B1) Method 15.3 C Format——C(C1) Method 15.4 E Format——E(E1) Method 15.5 F Format——F(F1) Method Appendix A (Normative) Correction Method of Instrument and Meter Loss and Error A.1 Correction of Bit Table Loss A.2 Correction of Scale Error of a Meter A.3 Correction of Transformer Ratio Error A.4 Correction of Phase Angle Error of Transformer Appendix B (Normative) Correction of Dynamometer Torque Reading B.1 Correction Based on Data of Tested Motor in No-load Test B.2 Correction of Dynamometer B.3 Corrected Torque T Appendix C (Informative) Linear Regression Analysis C.1 General C.2 Methods Appendix D (Informative) Comparison Table for Test Methods to Determine the Loss and Efficiency
