1、EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60034-6 November 1993 UDC 621.313-71 Supersedes HD 53.6 S1: 1977 Descriptors: Rotating electrical machines, cooling unit, cooling, coolant circuit, classification, designation, code English version Rotating electrical machines Part 6: Methods of c
2、ooling (IC Code) (IEC 34-6 : 1991) Machines lectriques tournantes Partie 6: Modes de refroidissement (Code IC) Umlaufende elektrische Maschinen Eil 6: Einteilung der Khlmethoden (IC-Code) (CE1 34-6 1991) (IEC 34-6: 1991) This European Standard was approved by CENELEC on 1993-09-22. CENELEC members a
3、re bound to comply with the CENICENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to
4、 the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has th
5、e same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Com
6、mittee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B- 1050 Brussels O 1993 Copyright reserved to CENELEC members Ref. No. EN 60034-6 : 1993 E COPYRIGHT European Committe
7、e for Electrotechnical StandardizationLicensed by Information Handling Services= 3404583 0091057 656 Page 2 EN 600346 : 1993 Foreword At the request of CENELEC Rchnical Committee Tc 2, Rotating machinery, the text of the International Standard IEC 34-6 : 1991 was submitted to the CENELEC formal vote
8、 for acceptance as a Harmonization Document. The draft was approved by CENELEC as HD 53.6 S2 on 1993-07-06 and was immediately submitted to a new vote for acceptance as a European Standard. The document, with some editorial modifications prepared by Tc 2, was approved by CENELEC as EN 60034-6 on 199
9、3-09-22. This European Standard supersedes HD 53.6 S1 : 1977. The following dates were fixed: - latest date of publication of an identical national standard (dop) 1994-09-01 - latest date of withdrawal of conflicting national standards (dow) 1994-09-01 For products which have complied with HD 53.6 S
10、1 : 1977 before 1994-09-01 as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until 1999-09-01. COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling ServicesI 3404583 0091058 592 Page 3 EN
11、600346 : 1993 CONTENTS 4 INTRODUCTION . . . clause 1 Scope . .“ ._. “ . _“ . . . .I.C. 6 2 Definitions . “. -“ -.I.U .“ “ 6 3 Designation system . “ _ _.“. ._. .l 8 4 Charactwisic numeral for dmit arrangement . “ 1 1 5 characterlsdic letter for coolant.“. -. “.“ . “ “.I w u “.“ . 12 6. Charactwistic
12、 numeral for method of movement . 13 AnWXeS A - Comnnly US designations . 14 B - Comparison of exampies from the first and second editions of IEC 34-6 . 1 8 COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling Servicesm 3404583 0091059 429 m Page 4 EN 634
13、-6 : 1993 INTRODUCTION In this edition of IEC 34-6, the sequence of numerals and letters following the Code letters . IC is changed. a) New designation system: i) A numeral is placed first. indicating the cooling circuit arrangement, being valid for both brimaw and seco ndaw c ircuits. li) Each circ
14、uit Is designated by a Jetter, indicating the coolant, followed by a pumeral indicating the method of movement of the coolant. i) The letter and numeral for the primaw coolant are placed secondaw coolant. then those for the Example: IC8AlW7 Arrangement Primary circuit Secondary circuit b) Previous d
15、esignation system: i) The mcondarv cooling circuit was designated m, then the primary circuit. i) EaCh circuit was designated by a Jetter, indicating the coolant followed by a nume ral, indicating the circuit arrangement, and then another num8 rai indicating the method of movement of the coolant. Ex
16、ample: ICW37A8 1 Secondary circuit Primary circuit This edition also provides for the designation to be simplified, where possible, by the omission of the letter A and of the numeral 7 for movement of secondary coolant under certain conditions. In addition, new letters F, S, X and Y are provided and
17、 defined; the previous letter E, Indicating cooling by evaporation of a liquid, has been omitted. COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling ServicesPage 5 EN 600346 : 1993 With the introduction of the new designation system, darifications are r
18、equired to definitions of open and dosed circuit cooling and of dependent and independent compo- nents (see clause 2). The mode of connecting the supply and the delivery of the appropriate control equipment for circulation components, which were specified in the first edition are no longer taken int
19、o account in this second edition. Where the two systems differ, they can be distinguished Both in.the complete and the simplified code. Examples of cooling according to the first and the second editions are compared in annex B. COPYRIGHT European Committee for Electrotechnical StandardizationLicense
20、d by Information Handling Services3404583 0091ObL 087 = Page 6 EN 600346 : 1993 ROTATING ELECTRICAL MACHINES Part 6: Methods of cooling (IC Code) 1 Scope This pari of IEC 34 identifies the circuit arrangements and the methods of movement of the coolant in rotating electrical machines, classifies the
21、 methods of cooling and gives a designation system for them. The designation of the method of cooling consists of the letters IC, followed by numerals and letters representing the circult arrangement, the coolant and the method of movement of the coolant. . A compiete designation and a simplified de
22、signation are defined. The complete designa- tion system is intended for use mainly when the simplified system is not applicable. The complete designations, as well as the simplified designations, are illustrated in the tables of annex A for some of th8 most frequently used types of rotating machine
23、s, together with sketches of particular examples. 2 Deflnltions For the purpose of this part, the following definitions apply. 2.1 coollng: A procedure by means of which heat resulting from losses occurring in 8 machine is given up to a primary coolant which may be continuously replaced or may itsel
24、f be cooled by a secondary coolant in a heat exchanger. 2.2 coolant: A medium, liquid or gas, by means of which heat is transferred. 2.3 prlmary coolant: A medium, liquid or gas which, being at a lower temperature than a part of a machine and in contact with it, removes heat from that part. NOTE - A
25、 machine may have more than one primary coolant. 2.4 secondary coolant: A medium, liquid or gas which, being at a lower temperature than the primary coolant, removes the heat given up by this primary coolant by means of a heat exchanger or through the external surface of the machine. NOTE - Each pri
26、mary - Examples: IC31, IC41 1 or IC71 W. a complete designation can be recognized by the presence (after the letters IC) of three OT five a 8implHied dedgndon has two or thio0 consocutive numerals, or a letter In the final pkloci. 3.2 Application of designations The simplified designation should pre
27、ferably be used, 1.e. the complete designation system is intended for use mainly when the simplified system is not applicable. 3.3 Different coolants or methods of movement may be used In different parts of a machine. These shall be designated by stating the designations as appropriate after each pa
28、rt of the machine. Designation of same clrcuit arrangements for different parts of a machine . COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling ServicesPage 10 EN 600346 : 1993 = 3404583 0091065 722 = Example for different circuits in rotor and stator
29、: Rotor IC7H1 W Stator IC7W5W . (simplified) Rotor IC7HlW Stator IC7W5W7 . (complete) Example for different circuits in a machine: Generator IC7H1 W Exciter IC75W . (simplified) Generator IC7H1 W7 Exciter IC7A5W7 . (complete) 3.4 Designation of different circuit arrangements for diferent paris of a
30、machine Different circuit arrangements may be used on different parts of a machine. These shall be designated by stating the designations as appropriate after each pari of the machine, separated by a stroke. Example: Generator IC81 W 1 Exciter IC75W (simplified) Generator IC8A1 W7 1 Exciter IC7A5W7
31、. (complete) 3.5 In the case of machines with direct cooled (inner cooled) windings, the part of the designa- tion related to this circuit shall be put between brackets. Designation of direct cooled winding Example: Rotor IC7H1 W Stator lC7(W5)W . : . (simplified) Rotor IC7H1 W7 Stator IC7(W5)W7 (co
32、mplete) 3.6 Designation of stand-by or emergency cooling conditions Different circuit arrangements may be used depending on stand-by or emergency cooling conditions. These shall be designated by the designation for the normal method of cooling, followed by the designation of the special cooling syst
33、em enclosed in brackets, including the words “Emergency“ or Stand-by and the code letters IC. Example: IC71 W (Emergency ICO1) . (simplified) IC7AlW7 (Emergency ICOA1) . (complete) 3.7 Combined designations When two or more of the conditions of 3.3 to 3.6 are combined, the appropriate designa- tions
34、 described above can be applied together. 3.8 Replacement of characteristic numerals When a characteristic numeral has not yet been determined or is not required to be specified for certain application, the omitted numeral shall be replaced by the letter X. Examples: IC3X, IC4XX. 3.9 Examples of des
35、ignations and sketches In annex A, the different designations, together with appropriate sketches, are given for some of the most commonly used types of rotating machines. COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling ServicesPage 11 EN 634-6 : 199
36、3 I I 4 Characterlstlc numeral for circuit arrangement Integral heat exchanger (using remote medium) I The characteristic numeral following the basic symbol IC designates the circuit arrange- ment (see 3.1.2) for circulating the coolant(s) and for removing heat from the machine in accordance with ta
37、ble 1. Table 1 - Circuit arrangement Charac- teristic numeral O (we note i) 1 (see note 1) 2 (see note 1) 3 (see note 1) - 4 5 see note 2) 6 see note 2) 7 see note 2) B (-0 note 2) 9 (-0 ind 8) notes 2 I Brief description Definition Free circulation The coolant Ir freely drawn directly from the surr
38、ounding medium, cools the machine, and then froely returns directly to the surrounding medium (open circuit) Inlet pipe or inlet duct circulated The coolant h drawn from a medium remote from the machine, k guided to the machine through an inlet pipe or duct, p8.s.s through the machine and returns di
39、rectly to the surrounding medium (open circuit) Outlet pipe or outlet duct circulated Inlet and outlet pipe or duct Circulated Frame surface Cooled The coolant h drawn directly from the surrounding medium, passer through the machine and h then discharged from the machine through an outlet pipe or du
40、ct to a medium remote from the machine (open circuit) The coolant is drawn from a medium remote from the machine, is guided to the machine through an inlet pipe or duct, passes through the machine and ir then discharged from the machine through an outlet pipe or duct to a medium remote from the mach
41、ine (open circuit) The primary coolant is circulated In a closed circuit in the machin8 and gives b heat through the external surface of the machine (in addition to the heat transfer via the stator core and other heat conducting park) to the final cool- ant which is the surrounding medium. The surfa
42、ce may be plain or ribbed, with or without an outer shell to improve tho heat transfer Integral heat exchanger ing medium) Machinomountad heat exchanger ing medium) (using surround- (Using Surround- The primay coolant is circulated In a closed circuit and gives its heat via a heat exchanger, which i
43、s built into and forms an integral part of the machine, to the final coolant which is the surrounding medium The primary coolant io circulated in a closed circuit and gives its heat via a heat exchanger, which is mounted directly on the machine, to the final cod- ant which is the surrounding medium
44、The primary toolant k circulated in a cloud circuit and gives its heat via a heat exchanger, which h built into and forms an integral pari of the machlne, to the secondary coolant which ir the remote medium Machinemounted heat exchanger (using remote medium) Separate heat exohanger ing or remote mdi
45、um) (Wing 8lWOUnd- The primary coolant h circulated in a ciosid circuit and gives Ib heat via a heat exchanger, whkh h mounted directly on the machine, to the sday coolant which b the remote medium The primay coolant is circulated In a closed circuit and gives its heat via a heat exchangor, which h
46、separate from the machine, to the secondary cd- ant whkh 1. either the surrounding or the remote medium See notes on page 25. COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling Services H 3404583 00910b7 5T5 Page 12 EN 600346 : 1993 NOTES 1 Filters or l
47、abyrinths for separating dust, suppressing noise, etc., may be mounted in the frame or ducts. Characteristic numerals O to 3 also apply to machines where the cooling medium is drawn from the surrounding medium through a heat exchanger in order to provide cooler medium than the surrounding medium. or
48、 blown out through a heat exchanger to keep the ambient temperature lower. 2 The nature of the heat exchanger is not 8pecified (ribbed or plain tubes. etc.). 3 A separate heat exchanger may be Installed beside the machine or In a location remote from the machine. A gaseous secondary toolant may be t
49、he surrounding medium or a remote medium (see also annex A. table A.3). 5 Characteristic letter for coolant 5.1 in accordance with table 2. The coolant (see 3.1.3 and 3.1.5) Is designated by one of the characteristic letters Table 2 - Coolant Characteristic letter A (8- 5.2) F H N C W U S (see 6.3) Y (see 6.4) Coolant Air Freon Hydrogen Nitrogen Carbon dioxide Water Oil Any other coolant Coolant not yet seleced 5.2 are air, these letter(s) A stating the coolant are omitted in the simplified designation. When the single coolant Is air or
