1、 CENELEC Rue de Stassart. 35 - B 1050 Bruxelles Tl (+ 32 2) 519 68 71 - Fax (+ 32 2) 519.69.19 Teletex 206 2210097 - CENCEL - TX 172210097 Issue 1 1993-04-23 3404583 0060928 3TL m I April 1393 INFORMATION SHEET Rotating electrical machines Part 8: Terminal markings and direction of rotation of rotat
2、ing machines Machines lectriques tournantes Umlaufende elektrische Maschinen Huitime partie: Marques Teil 8: Klemmenbezeichnungen und dextrmits et sens de rotation des Drehsinn von umlaufenden machines tournantes elektrischen Haschinen RO: IEC 31-8:1372 4 A1:1990 Related to Directive: - This Harmoni
3、zation Document consists of the following: - Title Page - Endorsement notice - Common modifications prepared by CENELEC Technical Committee TC 2 date of ratification : 1993-03-09 date of announcement : 1993-09-01 date of latest publication : 1994-03-01 date of withdrawal : 1994-03-01 LIST OF NATIONA
4、L STANDARDS IS GIVEN OVERLEAF 3q09583 0060929 238 D HARMONIZED NATIONAL STANDARDS HO 53.8 S4:1993 AT : NR (OVE-M1, Teil 1/198C) RE : CH : NR (;EV/ASE 3009-8.19761 OE : DK : NOS ES : FI : NOS FR : NR (NF C 51 118) GB : NR (BS 4999 : Part 108 : 1987) GR : NOS IE : NOS IS : IT : LU : NOS NL : NR (NEN 2
5、448 (1984) NO : NOS PT : NOS SE : NR (SEN 260108 (1975) NOS No standard SP Standard in preparation NR Standard under revisron W 3404583 00b0930 T5T *. HARMONIZATION DOCUMENT DOCUMENT DHARMONISAT1ON *- HARMONISIERUNGSDOKUHENT HO 53.8 SS April 1993 UDC 621.313.1:621.315.683.777:531.15 Descriptors: Rot
6、ating electrical machines, terminal markings and direction of rotation ENGLISH VERSION Rotating electrical machines Part 8: Terminal markings and direction of rotation of rotating machines (IEC 34-8:1972 + A1:1990, modifiedi Machines lectriques tournantes Umlaufende elektrische Maschinen Huitime par
7、tie: Marques Teil 8: Klemenbereichnungen und dextrmits et sens de rotation Drehsinn von umlaufenden des machines tournantes elektrischen Maschinen ICEI 31-8:1972 4 A1:1990, IIEC 35-8:1972 + A1:1990, modifies 1 modifiziert) This Harmonization Document was approved by CENELEC on 1993-03-09. CENELEC me
8、mbers are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for implementation of this Harmonization Document on a national level. Up-to-date lists and bibliographical references concerning national implementation may be obtained on application to the Central S
9、ecretariat or to any CENELEC member. This Harmonization Document exists in three official versions (English, French, German 1. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands
10、, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, 8-1050 Brussels 1993 Copyright
11、reserved to CENELEC members Ref. No. HO 53.8 S4:1993 E 3404563 0060931i 796 W Page 2 HD 53.8 S4:1993 FOREWORD The CENELEC questionnaire procedure, performed for finding out whether or not the International Standard IEC 34-8:1972 and its amendment 1:1990 could be accepted without textual changes, has
12、 shown that some common modifications were necessary for the acceptance as Harmonization Document. The reference document, together with the following common modifications prepared by the CENELEC Technical Committee TC 2, Rotating machinery, was submitted to the CENELEC members for formal vote. The
13、text of the draft was approved by CENELEC as HD 53.8 S4 on 9 March 1993. The following dates are proposed: - latest date of announcement of the HD at national level (doa) 1993-09-01 - latest date of publication of a harmonized national standard (dop) 1994-03-01 - latest date of withdrawal of conflic
14、ting national standards (daw) 1994-03-01 For products which have complied with HD 53.8 S3:1985 and its amendment A1:1989 before 1994-03-01, as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until 1999-03-01. ENDORSEMENT NOTICE The te
15、xt of the International Standard IEC 34-8:1973 and its amendment 1:1990 was approved by CENELEC as a Harmonization Document with agreed common modifications as given below. COnnoiJ HODIPICATIONS Add the following additional rules concerning the relation between terminal markings and the direction of
16、 rotation: GENERAL Terminal markings alone do not allow the mode of operation of the machine to be deduced. It should be noted that the figures are illustrations only. They do not take the place of the Rules and the arrangement of terminals in the figures is not mandatory. As IEC 34-8 does, the rule
17、s below deal with “external“ terminals, i.e. terminals at the disposal of the user (IEC 34-8, page 7, Explanatory Note) but give further details for a clear understanding of the marking itself. In the figures attached to these Additional rules, markings of winding end points which are not “external“
18、 terminals are indicated in brackets for information purposes. m 3404583 00b0932 822 m Page 3 HD 53.8 S4:1993 1. A11 terminals shall be identified by a marking. 2. The terminals to be CoMected to the supply are those having internal connections to the winding ends identified by the lobest suffix, vi
19、r. suffix 1 with untapped single-section bindings (e.g. see Figs. 1 and 2). 3. In any electrical machine there shall be not more than one terxinal with a given marking unless each of them is capable of performing the full electrical function appropriate to that marking, so that either may be used fo
20、r the connection (see Figure i). 4. If more than one terminal is provided to share tho current, additional numerical markings are necessary, separated by a hyphen from the suffix of the marking (see Figure 2). For windings with intermediate points, if more Chan two intermediate points per section ar
21、e provided, the terminals corresponding to the tappings shall be marked with the following suffixes : 5. 3, 31, 32 4 7, 71, 72 8 * etc. (see Figure 5). Note : The rules given in IEC Publication 443, sub-clause 5.2.b, for tappings in a single element, cannot be applied atrictly to rotating machines w
22、ith more than two Intermediate points per section : see IC 34-8.Ti6.2. 3404583 00b0933 7b - Page 4 HD 53.8 S4:1993 6. Hulti-sectian windings 6.1 The terminals corresponding to the ends of the sections shall be marked with the following suffixes (see Figure 3 and also Figure 3 of Publ. 34-a), - first
23、 section : 1,2 - second section : 5,c - third section : 9,lO - fourth section : 13,?4 In any section, the end point closer to the supply shall be marked with the lower numerical suffix. This applies to all multi-section uindings, whatever arrangements they may be meant for (e.g. see Figs. 7, 8, 9 an
24、d 10). 6.2 If two or more sections of a winding are connected to a common terminal, it shall take the lowest of the suffixes of the ends connected (see Figure b). 7. Separate winding3 7.1 Separate windings are such that, whatever purposes they may be intended to serve, they only are used one ar a ti
25、me, whether in full or partially, i.e. they are nor inrend-ac! fe:- any arrangement combining two or more windings or sectla1ls of them. 7.2 For mactiirics vith separate Windings, tfic rcquircmtbntr of Claw 5 orrd Cluusc 4 shall apply for coch separate uinding. In addition, all terminals. shli be ma
26、rked vfth numerical prefixes corresponding to the sopurate winding to rhich thy belong, vir. : - first winding :I - second winding :.2 - third winding :3 - fourth winding :4 - etc ( see Fig. 6, and also Fig.4 of IEC Publication 34-8) . Besides, in the case of multi-speed machines, the marking of ter
27、minals for connection to the supply shall be in mccordrnce with Sub-clauses 8.2 urd 8.3. 3404583 0060934 bT5 Page 5 HD 53.8 S4:1993 8. Yulti-speed machines 8.1 If a machine has only one winding (e.g. a Dahlander or a pole modulation uinding), the section end-points vhich are connected to the supply,
28、 when the sections are connected for the lovest speed, shall be identified by the lovest suffix. For each speed, the terminals to be connected to the suppl). shall be marked vith a numerical prefix. The sequence of the prefixes corresponds uith the increasing speed sequence. The suffix is omitted if
29、 the marking of a terminal has a prefix (e.g. see Figs. 7 and 8, vhich respectively aro the same as Figs. 7 and 8 in IEC 34-8). 8.2 If a machine has separate single-section windings (e.g. see IEC 34-8, Fig.4, for 2 separate windings), the rules of Clause 7 shall apply with the sequence of prefixes c
30、orresponding to an increasing speed sequence. The tenninsls to be connected to the supply are those h3vin.c: internal connections to the winding ends identified by the louer suffix. Fcr each speed, the suffixes of the terminals to be comicctd to the supply are omitted. 8.3 If a machine has separate
31、windings including multi-section windings (0.6. Dahlander or pole modulation vindings), rule?= in Sub-clauses 8.1 and 8.2 apply in combination (c.g. see Fig. 9, which is the same as Fig.9 in IEC 34-8, and Fig.10). 8.4 The relation between direction of rotation and alphabetical sequence of the termin
32、al letters given in Sub-clause 5.1 of IEC 34-8 is valid for all speeds .Should in a winding two phases be switched over to achieve this, then said switch shall be applied to terminal markings U and W and shall be applied to the arrangement for the lowest speed (e.g. see Figs 7, 8, 9 which respective
33、ly are the same as Figs 7, S and 9 in IEC 34-8). 9. Khrn an end of a main winding and an end of an auxiliary bindiiig are connected to the same terminal, that terminal shall be identified according to thcrule for the main winding (sec Figs. 11 and 12). - Sote : Rule in Clause 9 cannot be applied to
34、some types of small power motors. A specific terminal coding system for sucli motors is under consideration. 3404583 00b0935 531 Fig. 1 Machine with two terminal boxes Fig. 2 . Machine with parallel for alternative connections connected cables to the supply (either A or B connected with (A and B con
35、nected with supply) supply) P u2 b F U6 g u10 v1 o v2 uc v5 f 9 VrO !i v 14 !i P w1 P w2 !i W6 E nr IO i 9 w9 9 W13? Wlc, Fig. 3 Four section winding (24 terminals) I 1 Fig. 4 Two-section winding connected to 9 terminals 3q04583 0060736 478 u 32 u 33 U6 1 V6 ;q w2 iq w73 wc b Pig. 5 Two-section wind
36、ing with 4 tappings (36 terminals) T 1 u2 i luC 1V.l e I v2 ws IWi lW2 iwb 2u1 2UZ E 2U5 tu6 2v.1 2vt !L 2v3 2% !l Page 7 HD 53.8 S4:1993 2Wl 2W B 2w3 Fig. 6 Two separate two-section windings (24 terminals) M 3404583 00b0937 304 M Page 8 HI 53.8 S4:1993 zu 2v 2W Line LOW speed: IW, IV, 1U connected
37、with supply. Minding connection: series star. High speed: ZU, 2V, 2W connected with supply 1W connected to IV and 1U Winding connection: parallel star. Fig. 7 Three-phase two-speed winding with six terminals, for Dahlander or sum-modulated series star and parallel fitar arrangements Note: Terminals
38、1U and 1W have been switched over for the lower speed in order to have the same direction of rotation for both speeds. W 3404583 0060938 240 I. ZU 2V 2w 1w 1v 1U I Line Line Page 9 HI) 53.8 S4:1993 Low speed: IW, IV, 1U connected with supply. Ylinding connection: series delta High speed: 2U, 2V, 2W
39、connected with supply. 1U connected with IV and 1W. Winding connection: parallel star. lu xternal common point , ig. a Same winding as in Fig. 7 but for series delta and parallel star arrangements. Note Terminals 1U and 1W have been switched over for the lower speed in order to have the same directi
40、on of rotation for both speeds. M 340r1583 0060939 LB7 M Page 10 HD 53.8 S4:1993 Fig. 9 tu 2v 2w 3u 3v 3w I I I e- -/-o tu External common point Three-phase three-speed one being Dahlander or sum modulated arrangements, the other a single star-connected winding for the intermediate speed, nine termi
41、nals. induction motor with 2 separate windings, a winding like Fig. 8 for bottom and top speeds, with The sequence of the numerical prefixes of terminals corresponds with the speed sequence: Lowest speed: lu, IV, 1W connected with supply Intermediate speed: 2U, 2V, 2W connected with supply Highest s
42、peed: 3U, 3V, 3W connected with supply .- .i The relation between direction of rotation and alphabetical sequence of the terminal letters given in .Sub-clause 8.4 is valid for all speeds: terminals ?U and 1W for the lowest speed have been switched over in order to have the same direction of rotation
43、 for all speeds. 3404583 0060940 3Tq . 4. iwc 1w2 3w 4 4ik jU IV 1w Fig. 10 :u11 !U21 1 4 ZU Page 11 HD 53.8 S4:1993 “l_Qw L W 2w Three-phase four-speed induction motor with 2 separate windings, each being a two-speed difference-modulated arrangement, for example motor with 48/12 and 16/4 poles. The
44、 sequence of the numerical prefixes of terminals corresponds with the speed sequence: First winding (realizing the lowest speed and speed number 3): 48 poles: lu, lV, 1W (1) connected with supply 12 poles: 3U, 3V, 3W (1) connected with supply Second winding (realizing speed number 2 and the highest
45、speed): 16 poles: 2U, 2V, 2W (1) connected with supply 4 poles: 4U, 4V, 4W (1) connected with supply The relation between direction of rotation and alphabetical sequence of the terminal letters given in Sub-clause 8.4 is valid for all four speeds. (1) Note: The linking of other terminals to achieve
46、the selected speed will depend upon the details of the windings. m 3404583 00b094L 835 m Page 12 HD 53.8 S4:1993 n Fig. 11 Split-phase or capacitor-start reversible motor with 2 terminals - Supply to terminals U? and U2. Clockwise rotation ae shown. To reverse rotation, interchanEr (Z?) and (a. n -. Fig. 42a Fig. 12 Reversible capacitor-start motor with 3 terminals and externally connected capacitor. Supply to terminals U1 and U2 - Fig. 12a Clockwise rotation Fig. 12b Counterclockwise rotation
