1、General Purpose Form-wound Squirrel Cage Induction Motors185 kW (250 hp) through 2240 kW (3000 hp)API STANDARD 547SECOND EDITION, MAY 2017EFFECTIVE DATE: NOVEMBER 1, 2017Special NotesAPI publications necessarily address problems of a general nature. With respect to particular circumstances, local,st
2、ate, and federal laws and regulations should be reviewed.Neither API nor any of APIs employees, subcontractors, consultants, committees, or other assignees make anywarranty or representation, either express or implied, with respect to the accuracy, completeness, or usefulness of theinformation conta
3、ined herein, or assume any liability or responsibility for any use, or the results of such use, of anyinformation or process disclosed in this publication. Neither API nor any of APIs employees, subcontractors,consultants, or other assignees represent that use of this publication would not infringe
4、upon privately owned rights.API publications may be used by anyone desiring to do so. Every effort has been made by the Institute to assure theaccuracy and reliability of the data contained in them; however, the Institute makes no representation, warranty, orguarantee in connection with this publica
5、tion and hereby expressly disclaims any liability or responsibility for loss ordamage resulting from its use or for the violation of any authorities having jurisdiction with which this publication mayconflict.API publications are published to facilitate the broad availability of proven, sound engine
6、ering and operatingpractices. These publications are not intended to obviate the need for applying sound engineering judgmentregarding when and where these publications should be utilized. The formulation and publication of API publicationsis not intended in any way to inhibit anyone from using any
7、other practices.Any manufacturer marking equipment or materials in conformance with the marking requirements of an API standardis solely responsible for complying with all the applicable requirements of that standard. API does not represent,warrant, or guarantee that such products do in fact conform
8、 to the applicable API standard.Users of this Standard should not rely exclusively on the information contained in this document. Sound business,scientific, engineering, and safety judgment should be used in employing the information contained herein.All rights reserved. No part of this work may be
9、reproduced, translated, stored in a retrieval system, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission from the publisher. Contact the Publisher, API Publishing Services, 1220 L Street, NW, Washington, DC 20005.Copyright 201
10、7 American Petroleum InstituteForewordNothing contained in any API publication is to be construed as granting any right, by implication or otherwise, for themanufacture, sale, or use of any method, apparatus, or product covered by letters patent. Neither should anythingcontained in the publication b
11、e construed as insuring anyone against liability for infringement of letters patent.Shall: As used in a standard, “shall” denotes a minimum requirement in order to conform to the specification.Should: As used in a standard, “should” denotes a recommendation or that which is advised but not required
12、in orderto conform to the specification.This document was produced under API standardization procedures that ensure appropriate notification andparticipation in the developmental process and is designated as an API standard. Questions concerning theinterpretation of the content of this publication o
13、r comments and questions concerning the procedures under whichthis publication was developed should be directed in writing to the Director of Standards, American PetroleumInstitute, 1220 L Street, NW, Washington, DC 20005. Requests for permission to reproduce or translate all or any partof the mater
14、ial published herein should also be addressed to the director.Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years. A one-timeextension of up to two years may be added to this review cycle. Status of the publication can be ascertained from theAPI Stan
15、dards Department, telephone (202) 682-8000. A catalog of API publications and materials is publishedannually by API, 1220 L Street, NW, Washington, DC 20005.Suggested revisions are invited and should be submitted to the Standards Department, API, 1220 L Street, NW,Washington, DC 20005, standardsapi.
16、org.iiiContentsPage1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 Usual Service Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.3 Unusual Service Conditions . . . . . . . . . . . . . . . . . . . .
18、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.4 Dimensions and Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Normative References . . . . . . . . . . . . . . . .
19、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Terms and Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Basic Design . . . . . . . . .
20、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21、 . . . . 64.2 Electrical Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.3 Winding and Insulation Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22、 . . . . . . . . . . . . . . . . 84.4 Mechanical Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94.5 Vertical Motors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165.1 Terminal Boxes . . . . . . . . . . . . . . . . . . . . . . .
24、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165.2 Winding Temperature Detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175.3 Bearing Temperature Detectors. . . . .
25、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175.4 Space Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175.5 Ground Connector
26、s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185.6 Auxiliary Device Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27、 186 Inspection, Testing, and Preparation for Shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186.1 Final Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28、 . . . . . . 186.2 Preparation for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Guarantee and Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29、. . . . . . . . . . . . . . . . 208 Vendor Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208.1 Proposals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208.2 Contract Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Annex A (informative) Use of API Monogram by Licensees.
31、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Annex B (normative) Datasheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Annex C (informative) Datasheet Guide . . . . . . . . .
32、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53TablesC.1 Standard IEC a
33、nd NEMA Power Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36C.2 List of Liquids with an Autoignition Temperature (AIT) of Less Than 200 C, Requiring Space Heaters with Heater Element Surface Temperature Less Than 160 C . . . . . . .
34、 . . . . . . . . . . . . . . . . . . . . . 41v1General Purpose Form-wound Squirrel Cage Induction Motors185 kW (250 hp) through 2240 kW (3000 hp)1Scope1.1 General1.1.1 This standard covers the requirements for form-wound induction motors for use in general purpose petroleum,chemical and other indust
35、rial severe duty applications and with the following characteristics: a) rated 185 kW 250 horsepower (hp) through 2240 kW (3000 hp) for four-, six-, and eight-pole speeds;b) rated less than 600 kW (800 hp) for two-pole (3000 or 3600 RPM) motors of totally enclosed construction;c) rated less than 930
36、 kW (1250 hp) for two-pole motors of WP-II type enclosures;d) rated less than 375 kW (500 hp) for vertical motors;e) drive centrifugal loads;f) drive loads having inertia values not exceeding those listed in NEMA MG 1 Part 20; and g) operated as motors, not induction generators.NOTE Motors larger th
37、an that covered above and motors in other applications should be specified in accordance with API 541.1.1.2 Application of the API MonogramIf the product is manufactured at a facility licensed by API and it isintended to be supplied bearing the API Monogram, the requirements of Annex A apply.1.1.3 A
38、 datasheet is provided in Annex B. The purchaser is not required to complete and provide the datasheet forpre-configured or catalog based motors manufactured with standard features. However, the purchaser shall providethe completed datasheet to specify motor requirements for a specific application a
39、nd/or with options and featuresbeyond the above description. A datasheet guide, which provides detailed information to assist with completion of thedatasheet, is provided in Annex C.1.2 Usual Service ConditionsUnless otherwise specified, motors conforming to this standard shall be suitable for opera
40、tion within their rating underthe following service conditions:a) exposure to an ambient temperature in the range of 18 C to 40 C (0 F to 104 F);b) exposure to a maximum altitude of 1000 m (3300 ft) above sea level;c) indoor or outdoor severe duty applications, such as humid, chemical (corrosive), o
41、r salty atmospheres;d) horizontal foot mounted; e) installation in a Class I, Zone 2 or Division 2 hazardous (classified) location;f) constant frequency sinusoidal input power;g) not subject to frequent transient overvoltages (e.g. switching surges, lightning surges); andh) direct coupled without a
42、gear, fluid coupling, or other speed modification device.2 API STANDARD 5471.3 Unusual Service ConditionsUnusual service conditions shall be brought to the attention of those responsible for the design, manufacture,application, and operation of the motor. Among such unusual conditions are:a) exposur
43、e to:1) combustible, explosive, abrasive, or conductive dust;2) dirty operating conditions where the accumulation of dirt will interfere with normal ventilation;3) nuclear radiation;4) abnormal shock, vibrations, or mechanical loading from external sources;5) abnormal axial or side thrust imposed on
44、 the motor shaft;6) altitude or ambient temperature outside the range covered in 1.2;7) reciprocating or positive displacement loads; and8) offshore applications;b) conditions under which the variation from rated voltage or frequency, or both, exceeds the limits given in NEMAMG 1 (or IEC 60034-1);c)
45、 conditions under which the AC supply voltage is unbalanced by more than the limits given in NEMA MG 1 (or IEC60034-1);d) operation at speeds other than rated speed;e) operation on an adjustable speed drive;f) load inertia greater than and/or starting conditions more severe than given in NEMA MG 1;g
46、) orientation of a foot-mounted motor in any position other than horizontal;h) vertical flange-mounted motors;i) coupled through a belt, gear, fluid coupling or other speed modification device; andj) requirements for enclosure purging or pre-start ventilation.NOTE A bullet () at the beginning of a p
47、aragraph indicates that either a decision is required or further information is to be provided by thepurchaser. This information should be indicated on the datasheets (see Annex B); otherwise it should be stated in the quotation request or in theorder.1.4 Dimensions and Standards1.4.1 Both the SI an
48、d U.S. customary system of units and dimensions are used in this standard. Data, drawings,and hardware (including fasteners) related to equipment supplied to this standard shall use the system of unitsspecified by the purchaser. An alternate system of units for hardware (including fasteners and flan
49、ges) may besubstituted if mutually agreed upon by the purchaser and the vendor.GENERAL PURPOSE FORM-WOUND SQUIRREL CAGE INDUCTION MOTORS185 KW (250 HP) THROUGH 2240 KW (3000 HP)31.4.2 This document recognizes two different systems of standards for the manufacturing and testing of electricalmotors: the North American ANSI, IEEE, and NEMA standards and the international IEC and ISO standards. TheNorth American standards are the base documents. When specified by the purchaser, the correspondinginternational standards are acceptable for use as alternatives; however, this shall
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