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NEMA MG 10011-2024 Power Index Calculation Procedure-Standard Rating Methodology for Power Drive Systems and Complete Drive Modules, 2024
- 1 Scope [Go to Page]
- 1.1 Included Products [Go to Page]
- 1.1.1 Group 1—Synchronous and Inverter Only Electric Motors
- 1.1.2 Group 2—Fixed Speed and Inverter Capable Electric Motors
- 1.2 Electric Motor Rated Speed Limits and Speed Groups
- 1.3 Excluded Products
- 2 Referenced Standards and Documents
- 3 Definitions
- 4 Reference Values for Metric Calculation [Go to Page]
- 4.1 Default Loss Values
- 4.2 Baseline Motor [Go to Page]
- 4.2.1 Polyphase Motor Baseline
- 4.2.2 Line Start Synchronous Motor (LSSM) Baseline
- 4.2.3 Small Electric Motor (SEM) Baseline
- 4.2.4 Single-Phase Motor Baseline
- 4.2.5 Inverter Fed Polyphase Motor Baseline
- 4.3 PDS Baseline Selection, Selection by Single or Polyphase Input
- 4.4 Usage of Baselines
- 5 Test Methods [Go to Page]
- 5.1 Testing in Accordance with Existing Industry Standards and Interpolation at Target Test Points [Go to Page]
- 5.1.1 Option 1: PDS Testing of Group 1 OR Group 2 Electric Motor, Providing Measured Drive Performance
- 5.1.2 Option 2: PDS Testing of Group 1 OR Group 2 Electric Motor, Providing Default Drive Performance
- 5.1.3 Option 3: Test of Group 1 Electric Motor, Paired with IEC 61800-9-2 Test of Drive (or Equivalent AEDM)
- 5.1.4 Option 4: Test of Group 1 Electric Motor, Paired with IEC 61800-9-2 Drive Defaults (i.e., IEC IE2 RCDM)
- 5.1.5 Option 5: Test of Group 2 Electric Motor, Paired with IEC 61800-9-2 Test of Drive (or Equivalent AEDM)
- 5.1.6 Option 6: Test of Group 2 Electric Motor, Paired with IEC 61800-9-2 Drive Defaults (i.e., IEC IE2 RCDM)
- 5.1.7 Option 7: Test of Group 1 Electric Motor According to Fixed Speed Methodology
- 5.1.8 Option 8: Test of Group 2 Electric Motor According to Fixed Speed Methodology
- 5.1.9 Option 9: Direct Bench Measurement of Power Index Points for a PDS (or Extended Product)
- 6 Calculation of Metric [Go to Page]
- 6.1 Metric Points [Go to Page]
- 6.1.1 Measurement Points for Variable Speed Metric (Group 1 and 2) Electric Motors
- 6.1.2 Interpolation Equation for IEC Test Points
- 6.1.3 Fixed Speed Metric (Group 2)
- 6.2 Metric Weighting [Go to Page]
- 6.2.1 Rating to the Variable Speed Metric
- 6.2.2 Rating to the Fixed Speed Metric
- 6.2.3 Comparison to Existing Equipment Weighted Average Input Power (i.e., “Adjusted Variable Speed Metric”)
- 7 Reporting of Metric [Go to Page]
- 7.1 Applicability of Metric to CT and CHp Equipment
- Annex A, Tables and Equations Incorporated by Reference (Normative) [Go to Page]
- A.1 DOE ESEM NOPR Tables 14-16 [as Defined in DOE ESEM NOPR Pre-Publication p. 316-317]
- A.2 IEC 61800-9-2 Ed. 2 Interpolation Formula for Segment 2, with Reference Graphic
- A.3 IEC 61800-9-2 Ed. 2, Equation E.8 and Reference Tables
- A.4 IEC TS 60034-30-2 Nominal Efficiency Interpolation Equation and Tables [Go to Page]
