TransactionsPublished under the care of the General Secretary and the Treasurer . portions. The construction of this arrangement is also exceedingly simpleas to the remaining part, as shown by a glance at Fig. 2. Withoutthe necessity of bringing the beginnings and ends of the windingtogether, the connections can be made symmetrically around thecommutator, and the cross-connections, which require a compara-tively small space, can be easily located at any place. No difficulty is involved if. for example, it is desired to sub-divide the field-winding into a number of groups not directlydivisible
TransactionsPublished under the care of the General Secretary and the Treasurer . portions. The construction of this arrangement is also exceedingly simpleas to the remaining part, as shown by a glance at Fig. 2. Withoutthe necessity of bringing the beginnings and ends of the windingtogether, the connections can be made symmetrically around thecommutator, and the cross-connections, which require a compara-tively small space, can be easily located at any place. No difficulty is involved if. for example, it is desired to sub-divide the field-winding into a number of groups not directlydivisible into the number of poles. It is then only necessary tosubdivide the field-winding into groups of different numbers ofpoles, the numbers of tiirns being so dimensioned that they shallbe proportioned to the same terminal voltage. The largest groupsare then preferably placed in the middle and the smaller ones onoach side. The machine may, for example, have 10 poles, andhave to be subdivided into 6 groups. The field-winding can thenVol. I — 49 EEYLAND: COMPOUNDED ALTERNATORS. 8^. Fig. 3. ^i!!w^^<ftvvW^v»sww^ TT^^
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Keywords: ., bookcentury1900, bookdecade1900, bookidtr, booksubjectelectricity
