1、 Form-wound Squirrel-Cage Induction Motors500 Horsepower and LargerANSI/API STANDARD 541-2003FOURTH EDITION, JUNE 2004Copyright American Petroleum Institute Reproduced by IHS under license with API Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright American
2、Petroleum Institute Reproduced by IHS under license with API Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Form-wound Squirrel-Cage Induction Motors 500 Horsepower and LargerDownstream SegmentANSI/API STANDARD 541-2003FOURTH EDITION, JUNE 2004Copyright American P
3、etroleum Institute Reproduced by IHS under license with API Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-SPECIAL NOTESAPI publications necessarily address problems of a general nature. With respect to partic-ular circumstances, local, state, and federal laws and
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10、tation of the content of this standard or com-ments and questions concerning the procedures under which this standard was developedshould be directed in writing to the Director of the Standards department, American Petro-leum Institute, 1220 L Street, N.W., Washington, D.C. 20005. Requests for permi
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15、 Petroleum InstituteCopyright American Petroleum Institute Reproduced by IHS under license with API Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-FOREWORDAPI publications may be used by anyone desiring to do so. Every effort has been made bythe Institute to assur
16、e the accuracy and reliability of the data contained in them; however, theInstitute makes no representation, warranty, or guarantee in connection with this publicationand hereby expressly disclaims any liability or responsibility for loss or damage resultingfrom its use or for the violation of any f
17、ederal, state, or municipal regulation with which thispublication may conflict.Suggested revisions are invited and should be submitted to API, Standards department,1220 L Street, NW, Washington, DC 20005.iiiCopyright American Petroleum Institute Reproduced by IHS under license with API Not for Resal
18、eNo reproduction or networking permitted without license from IHS-,-,-Copyright American Petroleum Institute Reproduced by IHS under license with API Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-CONTENTSPage1 GENERAL. . . . . . . . . . . . . . . . . . . . . . .
19、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 Alternative Designs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20、. . . . . . . . . . . . 11.3 Dimensions and Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.4 Conflicting Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.5 Definition of Terms . . . . . . . . . .
21、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.6 Referenced Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 BASIC DESIGN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22、 . . . . . . . . . 42.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42.2 Electrical Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.3 Winding and Insulation S
23、ystems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.4 Mechanical Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 ACCESSORIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24、. . . . . . . . . . . . . 213.1 Terminal Boxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213.2 Winding Temperature Detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223.3 Bearing Temperature Detectors . . . .
25、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223.4 Space Heaters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223.5 Screens and Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26、. . . . . . . 233.6 Alarms and Control Devices for Motor Protection. . . . . . . . . . . . . . . . . . . . . . . 233.7 Ground Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243.8 Vibration Detectors . . . . . . . . . . . . . . . . . . . . . .
27、 . . . . . . . . . . . . . . . . . . . . . . . . . 244 INSPECTION, TESTING, AND PREPARATION FOR SHIPMENT . . . . . . . . . . . 244.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244.2 Inspection . . . . . . . . . . . . . .
28、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254.3 Final Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264.4 Preparation for Shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29、 . . . . . . . . . . . 335 GUARANTEE AND WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346 VENDORS DATA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346.1 Proposals . . . . . . . . . . . . . . . . . . .
30、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346.2 Contract Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35APPENDIX A DATASHEETS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31、 . . . . 39APPENDIX B VENDOR DRAWING AND DATA REQUIREMENTS . . . . . . . . . . . 53APPENDIX C DATASHEET GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57APPENDIX D PROCEDURE FOR DETERMINATION OF RESIDUAL UNBALANCE . . . . . . . . . . . . . . . . . . . . . . . . .
32、 . . . . . . . . . . . . . . . . . . . . 71APPENDIX E PROCEDURE AND GUIDANCE FOR DETERMINING THE ALLOWABLE RESULTANT VECTOR CHANGE DURINGA HEAT RUN TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79APPENDIX F ALTERNATE PROCEDURE FOR THE DETERMINATION OF A WELL DA
33、MPED RESONANCE . . . . . . . . . . . . . . . . . . . . . . . . . 83vCopyright American Petroleum Institute Reproduced by IHS under license with API Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-PageFigures1 Shaft Vibration Limits (Relative to Bearing Housing Usin
34、g Non-contactVibration Probes): for All Hydrodynamic Sleeve Bearing Machines;with the Machine Securely Fastened to a Massive Foundation . . . . . . . . . . . . . . . 272 Bearing Housing Vibration Limits: for Sleeve and Antifriction BearingMotors; with the Motor Securely Fastened to a Massive Foundat
35、ion . . . . . . . . . . 28D-1 (Blank) Residual Unbalance Worksheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73D-2 (Blank) Residual Unbalance Polar Plot Worksheet . . . . . . . . . . . . . . . . . . . . . . . . 74D-3 Sample Residual Unbalance Worksheet for Left Plane . . . .
36、. . . . . . . . . . . . . . . . . 75D-4 Sample Residual Unbalance Polar Plot Worksheet for Left Plane. . . . . . . . . . . . . 76D-5 Sample Residual Unbalance Worksheet for Right Plane . . . . . . . . . . . . . . . . . . . . 77D-6 Sample Residual Unbalance Polar Plot Worksheet for Right Plan . . . .
37、 . . . . . . . . 78E-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80E-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80E-3 . . .
38、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81E-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82F-1 Evaluation of Amplification Factor
39、(AF) from Speed Amplitude Plots. . . . . . . . . 84Tables1Voltage Ratings for 3-phase 60 Hertz (Hz) Systems . . . . . . . . . . . . . . . . . . . . . . . . 52-1 Voltage Ratings for 3-phase 50 Hz Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52-2 Voltage Ratings for 3-phase 50
40、Hz Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Number of Starts at a Service Factor Capability of 1.0 . . . . . . . . . . . . . . . . . . . . . . 64Motor Enclosures and Corresponding NEMA or IEC Specifications . . . . . . . . . . . 85Maximum Severity of Defects in Casting
41、s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256 DC Test Voltages for Insulation Resistance and Determination ofPolarization Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297 DC High-potential Test Voltage Levels. . . . .
42、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32C-1 List of Liquids with an Autoignition Temperature (AIT) of Less Than 250C, Requiring Space Heaters with Heater Element SurfaceTemperature Less Than 200C (Extracted from NFPA 497M-1991) . . . . . . . . . . 60Copyright American Petroleum I
43、nstitute Reproduced by IHS under license with API Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-1Form-wound Squirrel-Cage Induction Motors500 Horsepower and Larger1 General1.1 SCOPE1.1.1This standard covers the minimum requirements forform-wound squirrel-cage ind
44、uction motors 500 horsepower(hp) and larger for use in petroleum industry services. Note 1: This standard is typically utilized for machines that have oneor more of the following characteristics:1. Is in critical service.2. Is larger than 3000 hp (2250 kW) for speeds 1800 rpm andbelow.3. Is rated 80
45、0 hp (600 kW) or greater for two-pole (3000 or3600-rpm) machines of totally-enclosed construction, or rated1250 hp (930 kW) or greater for two-pole machines of open orguarded construction (including machines with WP-I or WP-IItype enclosures).4. Drives a high-inertia load (in excess of the load Wk2l
46、isted inNEMA MG-1 Part 20).5. Uses an adjustable speed drive as a source of power.6. Is an induction generator.7. Is a vertical machine rated 500 hp (375 kW) or greater.8. Operates in abnormally hostile environments.Note 2: A round bullet () at the beginning of a paragraph indicatesthat either a dec
47、ision is required or further information is to be pro-vided by the purchaser. This information should be indicated on thedatasheets (see Appendix A); otherwise it should be stated in thequotation request or in the order.Note 3: A diamond bullet () at the start of a paragraph indicatesadditional requ
48、irements for motors applied with adjustable speeddrives (ASDs). 1.1.2This standard requires the purchaser to specify detailsand features. The purchaser shall complete the datasheets inAppendix A. Note: Guidance for completion of the datasheets is provided inAppendix C.1.2 ALTERNATIVE DESIGNSThe vend
49、or may offer alternative designs (see 6.1.10). 1.3 DIMENSIONS AND STANDARDS1.3.1Both the SI and U.S. customary system of units anddimensions are used in this standard. Any data, drawings, orhardware (including fasteners) related to equipment suppliedto this standard shall use the U.S. customary system. 1.3.2This document recognizes two different systems ofstandards for the manufacturing and testing of electricalmachi
