iec 60034-8
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I E 34 8 72 4844893 0637989 869
NORME
CEI
INTERNATIONALE IEC
INTERNATIONAL
STANDARD
AMENDEMENT
AMENDMENT
Amendement
Machines electriques tournantes
Partie 8:
Marques d extremites et sens de rotation
des machines tournantes
Amendment
Rotating electrical m achines
Part
8:
Terminal marking and direction of rotation
of rotating machines
O
CEI 1996
Droits de reproduction reserves -Co pyright all rights reserved
Bureau central de la Commission Electrotechnique lnternation ale
3
rue de Varemb e Genev e Suisse
Commission Electrotechnique lnternationale CODE PRlX
International Electrotechnical Commission PRICE CODE
M e m n y ~ a p o a ~ a un e n ~ p o r e r ~ u r e c n a uOMWCCHU
L
Pour prix voir catalogue en vigueur
For price see current catalogue
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I E C 3 4 8 7 2 4 8 4 4 8 9 1 O b 3 7 9 7 1 4 1 7
34-8 Amend. 2
O
IEC:1996
- 3 -
FOREWORD
This amendment has been prepared by IEC technical committee 2: Rotating machinery.
The text of this amendment is based on the following documents:
Full information on the voting for the approval of this amendment can be found in the report on
voting indicated in the above table.
FDlS
21946lFDIS
Page 3
CONTENTS
Add:
Annex A Further examples of terminal markings
Report on voting
21974lRVD
Page 7
Explanatory note
Add at the end of
the
last paragraph:
Further examples are given in annex A.
Page 20
Add the following new annex A:
nnex
normative)
Further examples
of
terminal markings
A l General
Terminal markings alone do not allow the operation mode of the machine to be deduced.
It should be noted that the figures below are illustrations only. They do not replace the rules
and the arrangement of terminals in the figures is not mandatory.
As in IEC 34-1, the rules below deal with external terminals, i.e. terminals at the disposal of the
user see explanatory note on page 7) and give further details for a clear understanding of the
marking itself. In the figures, markings of winding end-points which are not external terminals
are indicated in brackets, for information purposes.
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34-8 Amend.
2
O IEC:1996
5
A 2 Additional rules
A.2.1
All terminals shall be identified by a marking.
A.2.2 The terminals to be connected to the supply are those having internal connections to
the winding ends identified by the lowest suffix, i.e. suffix 1 with untapped single-section
windings; see figures A.l and A.2.
A.2.3
In any electrical machine there shall be not more than one terminal with a given
marking, unless each terminal is capable of performing the full electrical function appropriate to
that marking, so that any terminal may be used for the connection; see figure A.1.
A.2.4 If more than one terminal is provided to share the current, additional numerical
markings are necessary, separated by a hyphen from the suffix of the marking; see figure A.2.
A.2.5 For windings with intermediate points, if more than two intermediate points per section
are provided, the terminals corresponding to the tappings shall be marked with the following
suffixes:
etc.; see figure A.5.
NOTE
The rules given in IEC 445, subclause 5.2.2, for tappings in a single element cannot be applied stric tly
to rotating machines with more than two intermediate points per section; see figure 2.
A .2.6 Multi section windings
A.2.6.1 The terminals corresponding to the ends of the sections shall be marked with the
following suffixes see figures 3 and A.3):
first section: 1, 2;
second section: 5 6;
third section: 9, 10;
fourth section: 13, 14
In any section, the end-point closer to the supply shall be marked with the lower numerical
suffix. This applies to all multi-section windings, whatever arrangements they may be meant
for; see figures A.7, A.8, A.9 and A.lO.
A.2.6.2 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 A.4.
A. 2.7 eparate
windings
A.2.7.1 Separate windings are such that, whatever purposes they may be intended to serve,
they are only used one at a time whether fully or partially, i.e. they are not intended for any
arrangement combining two or more windings or sections of them.
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A.2.7.2 For machines with separate windings, the requirements of A.2.5 and A.2.6 shall apply
for each separate winding. In addition, all terminals shall be marked with numerical prefixes
corresponding to the separate winding to which they belong, namely:
first winding: 1;
second winding: 2;
third winding: 3;
fourth winding: 4;
etc.; see figures 4 and A.6.
Moreover, in the case of multi-speed machines, the marking of terminals for connection to the
supply shall be in accordance with A.2.8.2 and A.2.8.3.
A. 2.8 Multi speed machines
A.2.8.1 If a machine has only one winding, for example a Dahlander or a pole-modulation
winding, the section end-points which are connected to the supply, when the sections are
connected for the lowest speed, shall be identified by the lowest suffix.
For each speed, the terminals to be connected to the supply shall be marked with a numerical
prefix. The sequence of prefixes corresponds with the increasing speed sequence.
The suffix is omitted if the marking of a terminal has a prefix; see figures A.7 and A.8.
A.2.8.2 If a machine has separate single-section windings for example see figure 4 for the
illustration of two separate windings) the
rules of A.2.7 shall apply with the sequence of
prefixes corresponding to an increasing speed sequence.
The terminals to be connected to the supply are those having internal connections to the
winding ends identified by the lower suffix.
For each speed, the suffixes of the terminals to be connected to the supply are omitted.
A.2.8.3 If a machine has separate windings including multi-section windings, for example
Dahlander or pole-modulation windings, the rules of A.2.8.1 and A.2.8.2 apply in combination;
see figures A.9 and A.lO.
A.2.8.4 The relation between direction of rotation and alphabetical sequence of the terminal
letters given in 5.1 is valid for all speeds. If, in a winding, two phases have to be switched over
to achieve this, then the switch shall be applied to terminal markings and and shall be
applied to the arrangement for the lowest speed; see figures A.7, A.8 and A.9.
A.2.9 When an end of a main winding and an end of an auxiliary winding are connected to the
same terminal, that terminal shall be identified according to the rule for the main winding;
see figures A . l l and A.12.
NOTE
This rule cannot be applied to certain types of small power motors. A specific terminal coding system
for such motors is under consideration.
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I E 34-8 72 844891 0b37997 935
34-8
Amend
O
IEC:1996
9
v w
U V W
LTd
u2) v2) w2
A
B
IEC 915196
Figure A. l Machines with two terminal boxes for alternative connections
to the supply either A or connected to supply)
A
IEC 91 96
Figure A.2
-
Machine with parallel connected cables A and connected to supply)
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34-8 Amend. 2 O
IEC: 996
IE
9 7 M
Figure
A.3
Four-section winding
24
terminals
E 9181
Figure
A.4
Two-section winding connected to nine terminals
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34-8 Amend. O IEC:1996
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Figure A.5 Two-section winding with four tappings 36 terminals)
1U6
1
V6 1W6 2U6 2V6 2W6
IE 9 W
Figure A.6 Two separate two-section windings
24
terminals)
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I E
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8 3 7
34 8 mend. 2 O IEC:1996 15-
2U 2v 2W
0
0
(U2) (U5) (V2) (V5) (W2) (W5)
1
Low speed: 1W,
1
V
1
U
connected to supply
Winding connection: series star
(U1) (U6) (V1) (V6) ' (W1) W6)
0
0
0
1W 1
v
1U
1
Line
Line
2U 2v 2W
U5) (V2) (V5) W2)
W5)
High speed:
ZU 2V,
2W connected to supply
1
W connected to
1V
and
1
U
Winding connection: parallel star
'
(U1) (U6) (V1)
V6)
(W1)
'
we)
A
1U
External common point
IE 9 Q M
NOTE
Terminals
1U
and 1W have been switched over for the lower speed
in
order to have the same direction
of rotation for both speeds.
Figure
A.7
Three-phase two-speed winding with six terminals,
for Dahlander or sum-modulated series star and
parallel star arrangements
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34 8 Amend. 2
O IEC:1996
17-
2U 2v 2W
Q
U2)
b
U5) V2)
V5)
w2)
Winding connection: series delta
4t
U1) U6)
1W 1v
U
T
Line
Line
I
2U 2v 2W
Q
U2)
Us)
V2) V5) W2) W5)
High speed: 2U 2V 2W connected to supply
I
1U
connected to
1
V and W
Winding connection: parallel star
1U
External common point
IEC 922 96
NOTE
Terminals 1U and 1W have been switched over for the lower speed in order to have the same direction
of rotation for both speeds.
Figure A.8
-
Same winding as in figure A.7 but with series delta
and parallel star arrangements
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34-8
Amend.
2 O
IEC:1996
19
External common point
IE
9 3M
The sequence of the numerical prefixes of terminals corresponds with the speed sequence:
Lowest speed:
1U 1V
1W connected to the supply
Intermediate speed: 2U 2V 2W
connected to the supply
Highest speed:
3U 3V 3W
connected to the supply
The relation between direction of rotation and alphabetical sequence of the terminal letters
given in A.2.8.4 is valid for all speeds.
NOTE Terminals 1U and 1W have been switched over for the lower speed in order to have the same direction
of rotation for the three speeds
Figure
A 9
Three-phase three-speed induction motor with two separate
windings one being a winding like in figure
A 8
for bottom
and top speeds with Dahlander or sum-modulated arrangements
the other a single star-connected winding for the intermediate
speed nine terminals
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34-8 Amend. 2
O
IEC:1996
-21
W
IE
9 4M
The sequence of the numerical prefixes of terminals corresponds with the speed sequence:
First winding (realizing the lowest speed and speed number 3):
48 poles:
1U, 1V,
1
W connected to supply
12 poles:
3U 3V, 3 ~ onnected to supply
Second winding (realizing speed number 2 and the highest speed):
16 poles:
2U, 2V, 2 ~ onnected to supply
4 poles: 4U, 4V, 4 ~ onnected to supply
The relation between direction of rotation and alphabetical sequence of the terminal letters
given in A.2.8.4 is valid for all four speeds.
')The linking of other terminals to achieve the selected speed will depend upon the details of the windings.
Figure A.10 - Three-phase four-speed induction motor with two separate
windings each being a two-speed difference-modulated
arrangement for example a motor with 48/12 and 1614 poles
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I E 34 8
72
844893 0638OlL 903
34-8 Amend. 2 O IEC:1996
23
Supply to terminals U1 and U2
Clockwise rotation as shown. To reverse rotation interchange
Z1) and 22) .
Figure
A . l l -
Split-phase or capacitor-start reversible motor with two terminals
a Clockwise rotation
Supply to terminals U1 and
U2
b) Counter-clockwise rotation
Figure A.12 Reversible capacitor-start motor with three terminals
and externally connected capacitor
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I E C 3 4 - 8 7 2 I 8 4 48 9 L O b 3 8 0 1 3 7 8 b
Publications de la CEI prCparCes
par le ComitC d Etudes no 2 suite)
34-17 (1992) Partie 17: Guide application des moteurs h
induction a cage aliment par convertisseurs.
34-18: valuations fonctionnelles des systkmes d'isolation.
34-18-1 (1992) Section 1 Rincipes directeurs gBneraux.
Amendement 1 (1996).
34-18-21 (1992) Section 21: ProcAures d'essai pour enroulements a
fils Evaluation thermique et classification.
Amendement 1 (1994).
Amendement 2 (1996).
34-18-22 (1996) Section 22: Proctdures d'essai pour enroulements
fils Classification des modifications et des substi-
tutions de composants d'isolation.
34-18-3 1 (1992) Section 3 1 ProcBdures d'essai pour enroulements
pr6formBs Evaluation thermique et classification
des systkmes d'isolation utilisBs dans les machines
jusqu'i et y compris 50 MVA et 15 kV.
Amendement 1 (1996).
34-18-32 (1995) Section 32: Prockdures d'essai pour enroulements
priformks Evaluation Qectrique des systkmes
d'isolation ut il il s dans les machines jusqu'8 et y
compris 50 MVA et 15 kV.
34-18-33 (1995)
Section
33:
Pnx6dure s d essai
pour mdements
pn5f-
Evaluation fonctionnellea plusiem
factem
Endurance
sous contr ink
thermique et dlechique
combink des s p t h m d'isolation u tili k dans les
machines jusquP t y compris 50 MVA et 15 kV.
34-19 (1995) Partie 19: MBthodes sp6cifiques d'essai pour
machines a courant continu h alimentation conven-
tionnelle ou redress .
34-22 (1996) Partie 22: enkratr ices courant alternatif pour
moteurs a combustion interne et
ti
pistons.
72: imensions et skries de puissances des machmes dlectriques
tournantes.
72-1 (1991)
Partie 1: Msignation des carcasses entre 56 et 400 et
des brides entre 55 et 1 080.
72-2(1990) Partie 2: Msignat ion des carcasses entre 355 et
1 000 et de.s brides entre 1 180 et 2 360.
72-3 (1994)
Partie 3: Petits moteurs incorpon5s Msignation s
brides BFlO BF50.
136 (1986)
Dimensions des balais et porte-balais pour machines
Blectriques.
Amendement 1 (1995).
276 (1968)
NfiNtions et nomenclature des balais de charbon,
des porte-balais, des collecteurs et des bagues.
Modification no 1 (1987).
279 (1969) Mesure de la r6sistance des enroulements d'une
machine courant altematif en fonctionnement sous
tension alternative.
356 (1971)
Dimensions des collecteurs et des bagues.
413 (1972) Mdthodes d'essai pour la mesure des proprides
physiques des m a t i k de balais pour machines Qec-
niques.
560 (1977) Wfinitions et terminoiogie des porte-balais de
machines dlectriques.
681: imensions des mo tem de faible puissance pour applications
particuli res.
681 1 (1980)
F remike partie: Moteurs pour bd eu rs mazout.
773 (1983)
MBthodes d'essai et appareils pour la mesure des
propriBt6s ogrationnelles des balais.
778 (1984)
Porte-balais pour bagues, groupe R -execution RA
IEC publications prepared
by Technical Committee No.
2
(continued)
34-17 (1992)
Part 17: Guide for application of cage induction
motors when fed from converters.
34-18: unctional evaluation of insulation systems.
34-18-1 (1992) Section 1 General guidelines.
Amendment 1 (1996).
34-18-21 (1992) Section 21: Test procedures for wire-wound
windings -Thermal evaluation and classification
Amendment 1 (1994).
Amendment 2 (1996).
34- 18-22 (1996) Section 22: Test procedures for wire-wound
windings Classification of changes and insulation
component substitutions.
34-18-31 (1992) Section 31
:
Test procedures for form-wound
windings Thermal evaluation and classification of
insulation systems used in machines up to and
including 50 M V A and 15 kV.
Amendment 1 (1996).
34-18-32 (1995) Section 32: Test procedures for form-wound
windings Electrical evaluation of insulation
systems used in machines up to and including
50 MVA and 15kV
34-18-33 (1995) Section 33: Test procedures for form-wound
windings Multifactor functional evaluation
Endurance under combined thermal and electrical
stresses of insulation systems used in machines up to
and including 50 MVA and 15 kV
34-19 (1995)
Part 19: Specific test methods for d.c. machines on
conventional and rectifier-fed supplies.
34-22 (1996) Part 22: AC generators for reciprocating internal
combustion (RIC) engine driven generating sets.
72: imensions and output series for rotating electrical machines.
72- 1 (199 1)
Part 1 Frame numbers 56 to 400 and flange numbers
55 to 1 080.
72-2 (1990)
Part 2: Frame numbers 355 to 1 000 and flange
numbers 1 180 to 2 360.
72-3 (1994)
Part 3: Small built-in motors Flange numbers BFlO
to BF50.
136 (1986)
Dimensions of brushes and brush-holdm for elec-
trical machinery.
Amendment 1 (1995).
276 (1968)
Definitions and nomenclature for carbon brushes,
brush-holders, commutators and slip-rings.
Amendment No. 1 (1987).
279 (1969)
Measurement of the winding resistance of an a.c.
machine during operation at alternating voltage.
356 (1971)
Dimensions for commutators and slip-rings.
413 (1972)
Test procedures for determining physical properties
of brush materials for electrical machines.
560 (1977)
Definitions and terminology of brush-holders for
electrical machines.
681: Dimensions of small power motors for definite
purpose
application.
681-1 (1980)
Part 1: il burner motors.
773 (1983)
Test methods and apparatus for the measurement of
the operational characteristics of brushes.
778 (1984)
Brush-holders for slip-rings, Group R -type RA.
suite)
continued)
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I E 34 P T B 72 4844871 0303756 2
2 . 34-8 amend. 1 @ CEI
PREFACE
Le p resen t amendement a 6tQ Qtabli pa r le Comitb dqEt udes no
2
de la
CEI Machines tou rna nte s.
Le texte de cet amendement est issu des documents suivants:
Les ra ppo rts de vote indiques dans le tableau ci-dessus donne nt toute
informat ion sur le vote ayant about i 2 I 'approbation de cet amendement.
Page
19
Rapport de vote
2CBCI564
5.
Relat ion en tr e marquage dqextr6mit8s e t sens de rotat i on
Proc dure
des Deux
M o i s
Z BC1562
Resle
des S X Mois
Z BC1540
Remplacer le titre de cet article par le suivant:
Rapport de vote
Z BC1560
5
Relat ion en tr e le marquage des extr8mitks e t le sens d e rotat ion
Remplacer le paragraphe existant
5 1
par le suivant:
5 .1
Machines triphase es courant alternatif (sans col lecteur)
5.1
I Les connexions internes de toute machine
5
ses extrGmit6s doivent
Btre
tel les que le sens de rotat ion soit dans le sens des aiguil les d'une
montr e qua nd I 'or dre de succession dans le temps des tensions d e
phase du syst rne est le m me que I 'o rdr e alphabbtiq ue des marquages
des extr6mit6s auxquelles les phases du systeme sont connect6es. Cette
disposit ion des connexions internes doit s 'appliquer meme si certaines
carac t6ris tique s de conception r end ent impraticables la rota tio n I-6elle
dans le sens des aiguilles d'une montre.
5.1 .2
Si une machine doit tourner dans le sens contraire des aiguil les
d'une montre sur un systeme dont la succession de phases est nor-
malisbe (ou tourner dans le sens des aiguilles d'une montre avec une
succession
non normalisQe des phases du systkme), un e pai re de csbles
du
systeme doi t Btre inte rv er t i e ent re les extr6mitks auxquelles ces
cables auraient dir Qt re connectes conformbment au pa rag rap he 5.1.1.
Les connexions internes de la machine
5
ses extrbmit6s doivent
demeurer inchangees.
1;
5.1.3 Si un seul sens de rotat ion est exig6 ou peut 6t r e ut i l isb, e sens
doit Btr e ind iqu b p ar une flbche, sous laquel le les let t re s de marquage
des extremites doiv ent k t re rGp6t6es, en l is ant de la gauche vers la +
droite, dans I 'o rdr e dans lequel les extrdmites doi ven t kt r e connect6es
pour suivre I 'ordre de succession des tensions de phase
du
systitrne.
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33L 7
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C.D.U.1U.D.C.: 621.313.1:621.315.683.777:531.15
-
O M M I S S I O N E L E C T R O T E C H N I Q U E N T E R N A T I O N A L E
(a ffil iie JOrganisation nternationale de Normalisation SO)
R E C O M M A N D A T I O N D E
L A
C E I
I N T E R N A T I O N A L E L E C T R O T E C H N I C A L C O M M I S S I O N
(affiliated to the International Organization for Standardization SO)
I E C R E C O M M E N D A T I O N
Publication 34 8
Premiere Bdition irst edition
1 9 7 2
Machines electriques lournantes
Huitieme partie: Marques d extremites et sens de rotation des machines tournantes
Rotating electrical machines
Part 8: Terminal markings and direction of rotation of rotating machines
Droits de reproduction rBserv is opyright - all r ights reserved
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Bureau Central de la Comm ission Electrotechnique lnternationale
1, rue de VarembB
19 .56
rix Fr. s.
-------
Price
S.
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CONTENTS
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~ ~
I E C
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--
Page
FOREWOR
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PREFACE . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . .. .
Clause
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
xplanatory note 7
1
Scope . . . . . . . . . . . .. . . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . 7
2. Terminal markings of a. c. machines excluding a.c. commutator machines)
. . . . . . . . . . . . . . . . . . 8
.
Terminal markings of d. c. commutator machines
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13
4
Direction of rotation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Relation between terminal markings and direction of rotation
19
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.
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=
=
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
ROTATING ELECTRICAL MACHJNES
Part 8: Terminal markings and direction of rotation of rotating machines
r 7
\
/ >
FOREWOR
1)
Th e formal decisions or agreements of th e I E C on technical matters prepared by Technical Committees on which all the
Nationa l Com mittees having a special interest therein ar e represented express a s nearly as possible an internationa l
consensus of opinion o n the subjects dealt with.
2
They have the formofrecommendationsfor internationaluse and they areaccepted by theNa tional Comm itteesin that sense.
3 In o rder to promo te this international unification the IEC expresse s the wish that all National Committees having as yet no
nationalrules whenpreparingsuchrules shouldu se theIEC recom mend ations as thefundamental basis for theserules in so
far as na tional conditions will permit.
4) The desirability is recognized of extending international agreement on these matters through an endeavour to harmonize
national standardization rules with these recommendations in so far as national conditions will permit. The National
Committees pledge their influence owards th at end.
PREFACE
This Recommendation has been prepared by Sub-committee 16A, Terminal markings for rotating
machines, of IE C Technical Committee No. 16, Terminal markings and other identifications.
Drafts were discussed at the meeting held in London in 1968. As a result of this meeting, a draft was sub-
mitted to the National Committees for approval under the Six Months Rule in March 1969. Amendments
were submitted to the National Committees for approval under the Two Months Procedure in October
1970.
The following countries voted explicitly in favour of publication:
Australia
Austria
Belgium
Czechoslovakia
Denmark
Finland
France
Germany
Hungary
Israel
Japan
Netherlands
Norway
Poland
South Africa
Sweden
Switzerland
Turkey
Union of Soviet Socialist Republics
Yugoslavia
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I E C 3 4 P T 8 7 2 4 8 4 4 8 7 3 0 0 3 3 3 O b T
TERMINAL MARKINGS
AND DIRECTION OF ROTATION
OF ROTATING N I A C m S
Explanatory Note
This Recommendation, as far as it deals with terminal markings, is based on the following marking
principles
a)
Windings are distinguished by a (capital) letter (e. g. U,
V,
W .
b End points and intermediate points of a winding are distinguished by a numerical suffix to the winding
letter (e.g. U1 U2, U3).
c
Similar windings of
a
group having the same winding letters are distinguished by a numerical prefix to
the winding letter (e. g. lU, 2U).
d Winding letters for d. c. windings are chosen from the f is t part of the alphabet and winding letters for
a. c. windings from the second part of the alphabet.
This Recommendation deals with external terminals, i.e. terminals at the disposal of the user for
connection of the machine with the supply and with other apparatus and for other use. I t can be applied
to internal terminals also, the more so as the inherent logic of the system makes extension to almost any
case possible.
If no confusion is possible, the p r e k or the suffix or both may be omitted.
I t is obvious that this Recommendation does not cover all cases in detail; i t makes it possible however to
deal with cases not spec5cally mentioned in the text.
1 . Scope
This Recommendation concerns a.c. machines without commutator and d.c. commutator
machines and deals with
a)
terminal markings;
b direction of rotation;
c) relation between terminal markings and direction of rotation.
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I E C
3 q P T 8 7 2 L lBqLt871 0033108 3
p p p
9
t l l
2 v 2 W2
6
i
6 W6
Note 'ordre interrompu 1 2,
5
6 est choisi pour distin-
Note
he interrupted sequence 1 2, 5, 6 is chosen to dis-
guer cet enroulement de l'enroulement prises
tinguish this winding from the tapped winding
(figure 2). (figure 2).
FIG.
3. nroulement en deux moitiks pour couplage en serie ou en parallble avec 12 extrimilks sorties.
Split winding intended for series-parallel arrangement with 12 terminals.
I
;
U2 v2 W2 2U2 2v 2 2W2
Note
-
an s le cas de moteurs pBles commutables avec Note hen used in change-pole motors with two
deux enroulements skparb, correspondant deux
separate w indings for two speeds, the lower (higher)
vitesses, le prkiixe numkrique le plus bas (le plus
numerical prefix shall indicate the lower (higher)
lev ) oit indiquer la vitesse la plus basse (la plus
speed.
klevke).
FIG.
4 -
eux enroulements skparks qui ne se prstent pas un couplage skrie parallble avec six extrk-
mites sorties.
Pair of separate windings not intended for series-parallel arrangement each with six terminals.
---- J
.
1
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Petite vitesse:
Alimentation en lW, lV, 1U.
Couplage en triangle serie.
Low speed:
lW, lV, 1U connected with supply.
Winding connection: series delta.
Ligne
Line
Ligne
Line
Grande vitesse:
Alimentation en 2U, 2V, 2W; les extr6mitk
lW, lV, 1U sont rkunies en un point neutre.
Couplage en ktoile parallkle.
IEC 34
P T B
72
4 8 4 4 8 7 1
33IIO I
1
otes I
e
pr6fixe num6rique le plus bas (le plus Bev6) Notes I he lower (higher) numerical prefix shall indi-
doit indiquer la plus petite (la plus grande)
cafe the supply ferminals for the lower (higher)
vitesse. speed.
2.
a relation entre le sens de rotation et l ordre
2. he relation between direction of rotation and
alphas tiqu e des lettres du paragraphe 5.1 est
alphabeticalsequence of the termha1 letters giv-
applicable aux d ew vitesses. en
in
Sub-clause 5.1
is
valid for both speeds.
FIG.
8.
nrou Ieme nt deux vitesses avec six extrkmitks sorties
Two speed winding with six terminals
Point commu n extdrieur
xternal common point
High speed
:
2U, 2V, 2W connected with supply, 1U
connected to 1V and 1W.
Winding connection: parallel star.
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I E 3 4 P T 8 7 2 4 8 4 4 8 7 3
FIG. 10. nroulement principal
d'un moteur monophas6.
FIG. 11. nroulement auxiliaire
d'un moteur monophas6.
Main winding of Auxiliary winding
a single-phase motor.
a single-phase motor.
2.5 Les marques des extrCmit6s sorties d'un enroule-
2.5 The terminal markings of d. c. excitation wind-
ment d'excitation en courant continu d'une
ings of synchronous machines (Figure 12) shall
machine synchrone (figure 12) seront conformes
be in accordance with the terminal markings of
celles des extrimit des enroulements d'exci-
the d. c. separately excited field windings (Figure
tation s6parCe en courant continu (figure 21,
21, page 15).
page
15 .
F
F
FIG. 12. nroulement d'excitation en courant continn d'une machine synchrone avec deux extrernites
sorties.
D.C. excitation winding of a synchronous machine with two terminals.
3. Marquage des extrCmit6s d enroulement sorties 3 . Terminal markings of
d.
c. commutator ma-
des machines avec collecteur
B
courant continu
chines
3 . 1 Les marques des extrbmite's sorties des enroule-.
3.1 The terminals of the windings of d.c. commuta-
ments des machines courant continu avec col-
tor machines shall bemarked as follows:
lecteur doivent dtre comme indiqu6 ci-aprbs
FIG. 13. nroulement induit avec deux extr6mit6s sorties.
Armature winding with two terminals.
FIG. 14. nroulement de commutation avec deux extrCmit6s sorties.
Comrnutating winding with two terminals.
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I E C 3 4 P T 8
7 2
8 4 4 8 7 1 0 0 3 3 1 1 4
7
FIG
1. nroulement d'excitation skparCe avec deux extrkmitbs sorties.
Separately excited excitation winding with two terminals.
FIG
2. nroulement d'excitation s6parCe en deux moitik pour couplage en sCrie ou en parallkle avec
quatre extrCmit6s sorties.
Separately excited excitation winding for series-paralleI arrangement with four terminals.
FIG
3. nroulement auxiliaire situC sur l'axe direct avec deux extr6mitCs sorties.
Direct axis auxiliary winding with two terminals.
FIG
4. nroulement auxiliaire situC sur l'axe transversal avec deux extrCmitts sorties.
Quadrature axis auxiliary winding with two terminals.
3.2 Les flux produits par deux enroulements d'exci-
3.2 Two excitation windings shall have cumulative
tation doivent avoir le mCme sens si, dans les
magnetic effects i in both windings current
deux enroulements, le courant pCnktre par l'ex- passes fromthe terminal with the lower (higher)
trCmitC avec le suffixe numirique le plus bas (le
numerical s u f h to the terminal with the higher
plus Clevk) et sort par l'extrCmit6 avec le sufExe
(lower) suEx.
numdrique e plus tlev6 (le plus bas).
3.3 Les champs magnetiques des enroulements de
3.3 The magnetic fields of commutating and corn-
commutation et de compensation doivent Ctre pensating windings shall be of correct polarity
de polarit6 correcte l'un par rapport
i
I'autre et with respect to each other and to the magnetic
par rapport au champ magnetique de I'enroule- field of the armature winding if in all these wind-
ment d'induit, si, dans tous ces enroulements le ings current passes from the terminal with the
courant p6nhtre par I'extrtmitC avec le sufEixe lower (higher) numerical suffix to the terminal
numhrique le plus bas (le plus 6levC) et sort par
with the higher (lower) suffix.
l'extrCmit6 avec le sufExe numerique le plus lev6
(le plus bas).
3. 4 La connexion en sCrie de l'enroulement d'in- 3.4 The series connection of armature, commu-
duit, de l'enroulement de commutation et de tating and compensating windings with two
l'enroulement de compensation avec deux ex tr 6
terminals shall be marked as follows
:
mitQ sorties doit Ctre marquee comme suit:
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I E
34 PT * 7 q844B9L
33336
ppp
7
3 . 5 Quand deux ou plus de deux enroulements sont
3 5
When two or more windings are connected to
connect une mSme borne, son marquage doit
the same terminal, its marking shall be derived
Stre derive du marquage d'un ou de plusieurs
from the terminal markings of one or more of
enroulement(s)connectt(s), c o m e llustr6 dans
the winding(s) connected, as illustrated in Fig-
les figures
29 32.
ures
29
to
32.
Note e sens de rotation montr6 dans les figures 29 ti 32
Note he direction of rotation shown in F igures 29 to 32
st conform e au paragraphe 5 . 3 .
s according to Sub clause
5 . 3 .
A E l
oulor
AE
oulor
A
oulor
A
C2E2
oulor
CE
oulor
C
oulor
C2
FIG.
29.
Moteur ou generatrice cornpens6 avec enroulements de compensation et de commutation
imbriquks avec deux extr6mitCs sorties; sens de rotation droite.
Compensated motor or generator with interlaced compensating and commutating windings,
with two terminals; direction of rotation clockwise.
A E2
oulor
AE
oulor
A
oulor
A
C2E
oulor
CE
oulor
olilor
FIG.
30.
Moteur ou g6nCratrice cornpens6 avec enroulements de compensation et de commutation
interconnect6s, avec deux extr6mitBs sorties; sens de rotation gauche.
Compensated motor or generator with interconnected compensating and commutating wind-
ings, with two terminals; direction of rotation: anticlockwise.
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I E C
3 4 P T * B
7 2
g 0 4 4 B 9 3 0 0 3 3 3 3 8
b
4.
Sens de rotation
4.
Direction of rotation
4.1 Si la machine ne posdde qu un seul bout d arbre
4.1 If the machine has only one shaft end (or two
(ou posdde deux bouts d arbre de diamgtres dif-
shaft ends of different diameters), the directionof
ferents), le sens de rotation est celui quevoitun rotation is the one observed when facing the sin-
observateur place face au bout d arbre unique
gle shaft end (or facing the shaft end with the
(ou face au bout d arbre le plus gros). Si la
largest diameter). If the machine has two shaft
machine possbde deux bouts d arbre de mgme
ends of the same diameter or has no shaft ends,
diambtre ou n en possbde pas, l observateur est
the position of the observer is:
place
a ) du bout oppos6 au collecteur ou aux a ) on the end opposite the comnlutator or the
bagues, s il n existe un collecteur et/ou des
collector-rings, if the commutator and/or
bagues que d un seul c6tC de la machine;
collector-rings exist at one end of the ma-
chine only;
6 du bout des bagues si la machine poslde
b ) on the collector-ring end, if the machine
un collecteur d un c6t6 et des bagues de has a commutator at one end and collec-
I autre; tor-rings at the other;
c ) selon entente particulibre, dans le cas oc es
c) in accordance with special agreement, in
conventions precidentes prdtent confu- the case where a) and b) lead to misunder-
sion. standing.
4.2 Le sens de rotation
< A
droite)) (ou marche
4.2 Clockwise rotation (or clockwise running) cor-
droite) correspond une rotation de la machine
responds to a rotation of the machine in the
dans le sens des aiguilles d une montre.
direction of the hands of a clock.
5.
Relation entre marquage d extrk mitb e t sens de 5 . Relation between terminal markings and direc-
rotation tion of rotation
5 . 1 Maclzines polyphasies sans collecteur h courant
5.1 A C. poly-phase mach ines witlzout comm uta-
alterriatif tor)
Le sens de rotation doit Ctre dans le sens des The direction of rotation shall be clockwise
aiguilles d une montre quand l ordre alphab6-
when the alphabetical sequence of the terminal
tique des lettres correspond l ordre de suc- letters of a phase group corresponds with the
cession des differentes phases dans le temps.
time sequence of the terminal voltages.
5.2
Moteurs monophasb saris collecteur h courant
5.2 A C. single-phase motors witttout comm utator)
alternatif
Le sens de rotation doit Ctre dans le sens des
The direction of rotation shall be clockwise
aiguilles d une montre quand les connexions
if connections are made according to Figure
sont faites comme indiqui lafignre 33, page20.
33, page 20.
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