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IEEE Standard Test Procedure for Polyphase Induction Motors and Generators, 2017
- IEEE Std 112-2017 Front Cover
- Title page
- Important Notices and Disclaimers Concerning IEEE Standards Documents
- Participants
- Introduction
- Contents
- 1. Overview [Go to Page]
- 1.1 Scope
- 1.2 Purpose
- 2. Normative references
- 3. General [Go to Page]
- 3.1 Power supply [Go to Page]
- 3.1.1 Selection
- 3.1.2 Waveform
- 3.1.3 Voltage unbalance
- 3.1.4 Frequency
- 3.2 Types of tests [Go to Page]
- 3.2.1 Typical
- 3.2.2 Preliminary tests
- 3.2.3 Idle running tests
- 3.2.4 Tests with load
- 3.2.5 Tests with rotor locked
- 3.2.6 Choice of tests
- 3.3 Standardized temperatures [Go to Page]
- 3.3.1 Reference ambient temperature
- 3.3.2 Specified temperature
- 3.4 Use of this standard
- 3.5 Precautions
- 4. Measurements [Go to Page]
- 4.1 Electrical [Go to Page]
- 4.1.1 RMS quantities
- 4.1.2 Instrument selection
- 4.1.3 Instrument transformers
- 4.1.4 Voltage
- 4.1.5 Current
- 4.1.6 Power
- 4.1.7 Frequency
- 4.2 Resistance [Go to Page]
- 4.2.1 Instrument selection
- 4.2.2 Resistance measurement
- 4.3 Mechanical [Go to Page]
- 4.3.1 Power
- 4.3.2 Speed and slip
- 4.4 Temperature [Go to Page]
- 4.4.1 Methods of measuring temperatures
- 4.5 Procedure
- 4.6 Safety
- 5. Machine losses and tests for losses [Go to Page]
- 5.1 Overview
- 5.2 Types of losses
- 5.3 Stator I2R loss [Go to Page]
- 5.3.1 Overview
- 5.3.2 Resistance correction for temperature
- 5.4 Rotor I2R loss [Go to Page]
- 5.4.1 Overview
- 5.4.2 Slip
- 5.4.3 Slip correction for temperature
- 5.5 Winding resistance—cold
- 5.6 No-load test [Go to Page]
- 5.6.1 Overview
- 5.6.2 Bearing loss stabilization
- 5.6.3 No-load current
- 5.6.4 No-load losses
- 5.6.5 Friction and windage loss
- 5.6.6 Core loss
- 5.7 Load test [Go to Page]
- 5.7.1 Overview
- 5.7.2 Dynamometer loading
- 5.7.3 Direct loading with no torque measurement
- 5.7.4 Duplicate machine loading
- 5.8 Stray-load loss [Go to Page]
- 5.8.1 Introduction
- 5.8.2 Indirect measurement
- 5.8.3 Direct measurement
- 5.8.4 Introduction
- 5.8.5 Alternate direct method for wound-rotor motors
- 5.8.6 Assumed stray-load loss
- 5.9 Temperature test [Go to Page]
- 5.9.1 Purpose
- 5.9.2 General instructions
- 5.9.3 Loading method
- 5.9.4 Procedure
- 5.9.5 Temperature rise
- 5.10 Equivalent circuit [Go to Page]
- 5.10.1 Introduction
- 5.10.2 Impedance tests
- 5.10.3 Calculation of parameters—Method 1
- 5.10.4 Calculation of parameters—Method 2
- 5.10.5 Calculation of parameters—Method 3
- 5.10.6 Calculation of parameters—Method 4
- 5.11 Brush-contact loss
- 5.12 Power factor [Go to Page]
- 5.12.1 Indirectly obtained
- 5.12.2 Directly obtained
- 5.12.3 Equivalent circuit calculation
- 6. Determination of efficiency [Go to Page]
- 6.1 General
- 6.2 Efficiency test methods [Go to Page]
- 6.2.1 Overview
- 6.2.2 Guide for choice of efficiency test method
- 6.3 Efficiency Test Method A—Input-output [Go to Page]
- 6.3.1 Overview
- 6.3.2 Test procedure
- 6.3.3 Efficiency
- 6.4 Efficiency Test Method B—Input-output with loss segregation [Go to Page]
- 6.4.1 Introduction
- 6.4.2 Test procedure
- 6.4.3 Calculations
- 6.4.4 Corrections
- 6.4.5 Efficiency
- 6.4.6 Power factor
- 6.4.7 Summary of characteristics
- 6.5 Efficiency Test Method B1—Input-output with loss segregation and assumed temperature [Go to Page]
- 6.5.1 Introduction
- 6.5.2 Test procedure
- 6.5.3 Calculations
- 6.5.4 Corrections
- 6.5.5 Efficiency
- 6.5.6 Power factor
- 6.5.7 Summary of characteristics
- 6.6 Efficiency Test Method C—Duplicate machines [Go to Page]
- 6.6.1 Introduction
- 6.6.2 Test procedure
- 6.6.3 Calculations
- 6.6.4 Corrections
- 6.6.5 Efficiency
- 6.6.6 Power factor
- 6.6.7 Summary of characteristics
- 6.7 Efficiency Test Method E or E1—Electrical power measurement with loss segregation [Go to Page]
- 6.7.1 Introduction
- 6.7.2 Test procedure
- 6.7.3 Calculations
- 6.7.4 Motor/generator performance
- 6.8 Efficiency Test Method F or F1—Equivalent circuit [Go to Page]
- 6.8.1 Introduction
- 6.8.2 Test procedure
- 6.8.3 Calculation form
- 6.8.4 Calculation of maximum torque
- 6.9 Efficiency Test Method C/F, E/F, or E1/F1—Equivalent circuit calibrated with one load point [Go to Page]
- 6.9.1 Introduction
- 6.9.2 Stray-load loss
- 7. Other performance tests [Go to Page]
- 7.1 Rotor voltage
- 7.2 Locked-rotor tests [Go to Page]
- 7.2.1 Current
- 7.2.2 Torque
- 7.2.3 Power
- 7.3 Tests for speed-torque and speed-current curves [Go to Page]
- 7.3.1 Definitions
- 7.3.2 Speed-torque and speed-current curves procedure
- 7.3.3 Correction of data for tests performed at reduced voltage
- 8. Miscellaneous tests [Go to Page]
- 8.1 Insulation resistance
- 8.2 High-potential test [Go to Page]
- 8.2.1 General
- 8.2.2 Measurement
- 8.2.3 Connections
- 8.2.4 Test voltage
- 8.2.5 Voltage application
- 8.3 Shaft current and voltage [Go to Page]
- 8.3.1 Overview
- 8.3.2 Test to measure shaft potential for circulating shaft currents
- 8.3.3 Test to measure possible level of shaft current
- 8.3.4 Other methods
- 8.4 Bearing insulation resistance [Go to Page]
- 8.4.1 Method 1
- 8.4.2 Method 2
- 8.5 Noise
- 8.6 Balance and vibration [Go to Page]
- 8.6.1 Rotor balance
- 8.6.2 Vibration
- 8.7 Overspeed tests [Go to Page]
- 8.7.1 General
- 8.7.2 Procedure
- 9. Forms [Go to Page]
- 9.1 Test forms and support information [Go to Page]
- 9.1.1 Overview
- 9.1.2 Summary of characteristics
- 9.2 Form A—Method A
- 9.3 Form A2—Method A calculations
- 9.4 Form B—Method B
- 9.5 Form B2—Method B calculations
- 9.6 Form B1—Method B1
- 9.7 Form B1-2—Method B1 calculations
- 9.8 Form C—Method C
- 9.9 Form C2—Method C calculations
- 9.10 Form E—Method E-E1
- 9.11 Form E2—Method E-E1 calculations
- 9.12 Form F—Methods F, F1, C/F, E/F, and E1/F1
- 9.13 Form F2—Methods F, F1, C/F, E/F, and E1/F1 calculations
- 9.14 Test and equivalent circuit results
- Annex A (informative)Bibliography
- Annex B (informative)Typical report of test form for routine tests
- Annex C (informative)Typical report of test form
- Annex D (informative)Units of measure [Go to Page]
- D.1 Units of measure [Go to Page]
- D.1.1 Overview
- D.1.2 Mechanical power
- D.1.3 Torque
- D.1.4 Test forms
- D.1.5 Assumed stray-load loss
- D.1.6 Resistance reading at shutdown
- Annex E (informative)Total error of reading [Go to Page]
- E.1 Example of calculation of the total error of reading of power input without CT/VT [Go to Page]
- E.1.1 Introduction
- E.1.2 Conditions
- E.1.3 Specifications of the power meter
- E.1.4 Calculations
- E.2 Example of calculation of the total error of reading of power input including CT/VT [Go to Page]
- E.2.1 Introduction
- E.2.2 Conditions
- E.2.3 Specification of the power meter
- E.2.4 Specification of the voltage transformer
- E.2.5 Specification of the current transformer
- E.2.6 Calculations
- E.3 Example of calculation of the total error of reading of a torque measurement using a torque transducer without any additional instrumentation [Go to Page]
- E.3.1 Introduction
- E.3.2 Conditions
- E.3.3 Specifications of the torque transducer
- E.3.4 Calculations
- E.4 Example of calculation of the total error of reading of a torque measurement using a torque transducer with additional instrumentation [Go to Page]
- E.4.1 Introduction
- E.4.2 Conditions
- E.4.3 Specifications of the torque transducer
- E.4.4 Specifications of the digital voltmeter
- E.4.5 Calculations
- Back cover [Go to Page]