. Electric railway gazette . or No. 1. Instead of starting engine No. 3to bring generator No. 3 up to speed, or allowingthe friction of the magnetic clutch to bring thelatter up to speed, the following method isadopted: Current being produced from generatorNo. 1 is passed through the armature and fieldsof generator No. 3 In such a manner as to make amotor of it, until the armature attains the samespeed as that of generator No. 1, when current Is station for a few minutes at the time of changingfrom one engine to another, is not so serious as ina lighting plant, and the above clutches havebeen
. Electric railway gazette . or No. 1. Instead of starting engine No. 3to bring generator No. 3 up to speed, or allowingthe friction of the magnetic clutch to bring thelatter up to speed, the following method isadopted: Current being produced from generatorNo. 1 is passed through the armature and fieldsof generator No. 3 In such a manner as to make amotor of it, until the armature attains the samespeed as that of generator No. 1, when current Is station for a few minutes at the time of changingfrom one engine to another, is not so serious as ina lighting plant, and the above clutches havebeen designed for substitution for the magneticclutches in case the conditions were such as notto warrant installing the magnetic clutches. In Pig. 3a (see Fig. 3) i7 is a disls securely keyedto the engine shaft A of engine No. 1. / is a cir-cular disk securely keyed to the quill Cof gener-ator No. 1. J is a circular disk keyed to thecommon shaft E. If it is desired to drive gener-ator No. 1, three bolts, T, spaced at equidistant. anchored, as in firsc-class cable railway construction of the present day. The sys-tem is especially applicable to arc lightingstations where, as it Is well known, a large num-ber of small electrical units must be used, owingto it being usually necessary to run a machine foreach arc light circuit. Pig. 3 shows a 1,000 n. p. combined incandes-cent and arc light station. At each end of theline shaft is placed a high speed engine directlyconnected to the shaft. The shaft being detach-able from each engine, parting at its center sothat either portion of the shaft can be shut downin case of a hot journal, while the other portionof the plant remains in running order. The gener-ators are mounted on quills carried in Independentbearings, and motion is transmitted to the gener- -c, r-s
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Keywords: ., bookcentury1800, bookdecade1890, bookidelectricrail, bookyear1895
