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1、BRITISH STANDARD BS 822-6:1964 Incorporating Amendment Nos. 1 and 2 Terminal markings for electrical machinery and, if one outer terminal only is used under running conditions, that terminal is marked K1. b) When a capacitor forming an integral part of the motor apparatus is permanently connected in
2、 series with a winding of the motor and a lead for connection to control apparatus is brought out from the circuit at a point beyond the capacitor, the marking shall be that appropriate to the adjacent winding end rather than that appropriate to the capacitor. 5 Commutator machines The types of a.c.
3、 commutator machines are so diverse that it is beyond the scope of this standard to prescribe a complete system of terminal markings for such machines. However, the rules given in this Section, which are applicable to other forms of a.c. machines may be used for guidance. For universal motors see fo
4、r example Figure 66 b. iv) 3-phase winding star or delta-connected, with one tapping in each phase, e.g. for a change-pole machine: terminals of single star or delta windingsD3E3F3 tappings (see Figure 42 and Figure 43)D2E2F2 v) For a plurality of 3-phase windings E.g. for a three-speed machine with
5、 three windings each connected to its own sliprings or terminals with one common slipring or terminal (see Figure 44). Common slipring or terminal other sliprings or terminals D see Subclause 1 b) vi)1E1F 2E2F 3E3F vi) 6-phase winding, whether mesh- or star-connected, with six sliprings or terminals
6、 (see Figure 34 and Figure 45)D1F2E1 D2F1E2 vii) 2-phase windings: when L-connected having three sliprings or terminals (see Figure 35)DDE E when mesh-connected or with separate phases, having four sliprings or terminals (see Figure 36 and Figure 37)D1E1D2E2 two terminal windings (see Figure 46 a)XX
7、X more than two terminals (see Figure 46 b)X1X2X3 etc. one capacitorK1K2 two capacitorsK1K2 K3K4 Group of capacitors having three terminals onlyK1K2K3 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:21:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 822-6:19
8、64 BSI 03-20005 6 Composite machines Machines forming part of a composite machine carry the terminal markings appropriate to their class, as given above. When it is necessary to discriminate between windings of a similar character, numerical prefixes are used. 7 Colour markings for connecting leads
9、The colour marking of leads in this Section may be used as an alternative or in addition to the use of symbols. This is particularly applicable to machines conforming to BS 5000, “Rotating electrical machines of particular types or for particular applications” Part 11 “The electrical performance of
10、small-power electric motors and generators”, when fitted with loose leads. NOTEThe symbols are those which would be applicable if terminals were provided. a) Single-phase 4-lead motors (see Figure 7). b) Single-phase 3-lead motors (see Figure 4). c) Single-phase 2-lead motors (see Figure 47). d) 3-p
11、hase 3-lead motors (see Figure 1 and Figure 2). e) 3-phase 6-lead motors (see Figure 5). Section 2. D.C. Generators and motors (Other than traction motors) The terminal markings in this section are applicable to small-power electric motors and generators of sizes covered by BS 5000 “Rotating electri
12、cal machines of particular types or for particular applications” Part 11 “The electrical performance of small-power electric motors and generators”. 8 Main letter markings6) A1 BlackZ1Blue A2 RedZ2Yellow ARedZYellow AZ Black A1 BlackA2Red or Black ARedCBlue BYellow A1 BlackB2Yellow A2 RedC1White B1
13、BrownC2Blue 6) Where a manufacturer wishes to use identification colours for leads for manufacturing purposes, it is recommended that the colour markings given in Clause 12 should be adopted. Armature (see Figure 49)AAA Series field, whether for main excitation or stabilizing (see Figure 50)YYY Shun
14、t field, whether for main excitation or stabilizing (see Figure 51)ZZZ Separately-excited field windings on main poles, whether having shunt or series characteristics (see Figure 52) XXX Commutating windings (compole or interpole), whether series or shunt, and windings comprising interconnected comm
15、utating and compensating windings (see Figure 52 and Figure 53)HHH Compensating pole-face windings (see Figure 53)KKK Neutral or middle-wire terminal of a 3-wire machine, however derived (see Figure 54) N Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:21:34
16、GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 822-6:1964 6 BSI 03-2000 a) Common terminals. Where any terminal other than those above, is connected to the ends of two or more internal parts of the machine, such terminal bears a combination of the single letters significant of such parts, as derived
17、from the markings which would be assigned if the terminal in question were replaced by independent terminals (see Figure 56 and Figure 57). NOTEThe use of a common terminal marked J does not affect the markings of other terminals. b) Armatures. When the armature is permanently in series with some ot
18、her winding (e.g. commutating or other series winding) and when neither a lead from the armature itself nor any other tapping from that side of the armature circuit is brought out, the end of the winding which is permanently in series with the armature has its terminal marked with the symbol which w
19、ould have been assigned to the armature terminal or to a terminal common to the armature and shunt field, as appropriate (see Figure 58 and Figure 59). Where tappings from the armature circuit are brought out, the tapping nearest to the armature bears the symbols appropriate to the armature circuit
20、up to the tapping point and to the winding immediately beyond the tapping point (see Figure 51, Figure 56 and Figure 60). 9 Suffix markings a) Tapped windings. Any d.c. winding from which tappings are brought out has its terminals marked with the same single letter but the terminals carry distinguis
21、hing numerical suffixes commencing with unity, e.g. for a shunt winding Z1 Z2 Z3 etc. (see Figure 49). A tapping terminal may have to carry an additional letter if required by Subclause 1 b) (see Figure 60). When a winding is tapped for starting purposes, the part used for running bears the lower nu
22、merical suffix. b) Divided windings. Any d.c. winding which is divided, has its terminals marked with the same single letter but the terminals carry distinguishing numerical suffixes, commencing with unity (see Figure 61 and Figure 62). The allocation of suffix numbers is such that the connection of
23、 sections in series in the order of their suffixes will give cumulative action. When a winding is divided for purposes of main excitation and stabilizing, that part used for main excitation bears the lower suffix numbers. When a winding is divided for starting purposes, the part used for running bea
24、rs the lower suffix numbers. c) Plurality of windings. When two or more windings are provided for the same purpose but differ in type, e.g. series and shunt commutating windings, all their terminals are marked with the same single letter but carry distinguishing numerical suffixes commencing with un
25、ity, the winding of the heavier section bearing the lower suffixes, e.g. for a commutating winding: The suffixes are so assigned that if the current is flowing from a lower to a higher suffix number in all the windings, the effect of the windings is cumulative. d) Alternative series windings. When u
26、ntapped alternative series windings are provided for obtaining change of direction of rotation, the terminal common to the two windings is marked Y2 and the terminals on the other end of the windings are marked Y1 and Y3. If the junction of the two windings is permanently connected to one side of th
27、e armature and brought out to a terminal, it is marked AY, and the other armature terminal is marked A (see Figure 63). e) Sliprings. Sliprings for providing connection through a tapped reactor to the midwire of a 3-wire system are marked: (D1 D2 pertain to diametrically opposite connections.) A com
28、mon terminal used for control or auxiliary purposes only (see Figure 57) is marked H1H2H3H4, etc. 2 sliprings (see Figure 54)D1D2 3 slipringsDEF 4 sliprings (see Figure 55)D1D2E1E2 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:21:34 GMT+00:00 2006, Uncontro
29、lled Copy, (c) BSI BS 822-6:1964 BSI 03-20007 10 Mechanical rotation and polarity of windings a) Direction of rotation. The direction of rotation of a motor or generator is that observed when looking at (facing) its driving or driven end respectively. When the terminals of a motor or generator are m
30、arked and connected in accordance with the following rules the corresponding direction of rotation will be clockwise. Where a machine may drive or be driven from either or both ends the correspondence between lettering and rotation should be clearly indicated. b) Polarity. The allocation of markings
31、 to various windings (see Figure 64 and Figure 65) is: i) Series commutating and compensating windings. Having assigned single and double letters to one member, e.g. the armature, the assignment of single and double letters to the terminals of the series-connected commutating and compensating windin
32、gs is such that the inter-connection of these three members if effected by connecting terminals bearing the one a single and the other a double letter. For separately-excited commutating windings, see Subclause v). ii) Series and shunt windings on main poles. To enable the terminals of machines to b
33、e marked, even before the direction of mechanical rotation and the functioning of the machine as a generator or as a motor has been determined, arbitrary rules for the main series and shunt field windings are given in 1) and 2) below. 1) Series windings on main poles. The assignment of single and do
34、uble letters to the series winding on the main poles is such that when the machine is running as a motor, in the standard direction of rotation, the series field will be cumulatively connected in the armature circuit when the terminals of the field and armature circuit both having single or both hav
35、ing double letter markings, are connected together. NOTEFigure 64 illustrates a marking consistent with the above rule for a motor and also for a generator. 2) Shunt windings on main poles. The assignment of single and double letters to the terminals of a shunt winding on the main poles is such that
36、 when the mechanical rotation is clockwise, and the armature terminal having single-letter marking is connected to the shunt field terminal having double-letter marking, the shunt excitation then augments the field strength. iii) Separately-excited windings. Windings on the main poles for separate e
37、xcitation have the single and double letters assigned according to polarity, as though they were shunt windings. Commutator windings for separate excitation have single and double letters assigned in such a manner that current passing through them from the terminal bearing a single letter to that be
38、aring a double letter will produce the same magnetic polarity as would current passing through a series-connected commutating winding from a terminal bearing a single letter to one bearing a double letter, the terminals of which were marked in accordance with Subclause i). iv) Tapped or divided wind
39、ings. When any winding is tapped or divided, the terminal bearing the lowest suffix number corresponds to the single letter in the interpretation of Subclauses i) to iii) (see Figure 65). v) Standard polarity. Independently, whether a machine is operated either as a generator or motor; the shunt-fie
40、ld windings and the series-field windings should be marked so that when the direction of the current flow is from a single to a double letter the effect is cumulative. vi) Indication of polarity. When it is necessary to indicate the polarity of a winding, plus and minus signs are added to the markin
41、gs of the end terminals respectively. 11 Composite machines Machines forming part of a composite machine carry the terminal markings appropriate to their class, as given above. When it is necessary to discriminate between windings of a similar character numerical prefixes are used. 12 Colour marking
42、s for connecting leads The colour marking of leads in this Section may be used as an alternative or in addition to the use of symbols. This is particularly applicable to machines conforming to BS 5000, “Rotating electrical machines of particular types or for particular applications” Part 11 “The ele
43、ctrical performance of small-power electric motors and generators”, when fitted with loose leads. NOTEThe symbols are those which would be applicable if terminals were provided. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:21:34 GMT+00:00 2006, Uncontrolle
44、d Copy, (c) BSI BS 822-6:1964 8 BSI 03-2000 a) Where all the leads are brought out (see Figure 50). b) Where only two leads are brought out (see Figure 66). The connection diagrams, Figure 1 to Figure 66 inclusive, in the following pages, are included for illustrative purposes only, and it is not in
45、tended that they should cover the complete range of connections applicable to rotating electrical machinery. The diagrams are not intended to show the actual physical relationship of the terminals. Armature (including compoles, where fitted) ARed AABlack. Series field YYellow YYBrown. Shunt field ZW
46、hite ZZBlue. L1Red or Black L2Black. Figure 1 Three-phase winding, permanently delta-connected Figure 2 Three phase winding, permanently star-connected Figure 3 Two-phase winding, permanently L-connected Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:21:34 G
47、MT+00:00 2006, Uncontrolled Copy, (c) BSI BS 822-6:1964 BSI 03-20009 Figure 4 Permanently-connected single-phase main and auxiliary windings a. Starb. Delta Figure 5 Three-phase winding, both ends of each phase brought out Figure 6 Two-phase winding, both ends of each phase brought out Figure 7 Sing
48、le-phase winding, both ends of phase winding and auxiliary winding brought out Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:21:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 822-6:1964 10 BSI 03-2000 Figure 8 Three-phase winding divided into independent
49、sections Figure 9 Single-phase winding divided into independent sections Figure 10 Six-phase winding permanently connected in double star (neutral brought out) Figure 11 Three-phase winding, permanently star connected, with one tapping per phase Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:21:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 822-6:1964 BSI 03-200011 Figure 12 Three-phase winding, permanently delta connected, with one tapping per phase a. Starb. Delta Figure 13 Three-phase winding with one tapp
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