. Electrical world. end of each month, and asmeters are read in three different divisions at different times, theresults do not exactly correspond to the monthly output. The billsfor one-third of our consumers cover a period from the first of onemonth to the first of the next month, one-third from the loth to theloth, and one-third from the 20th to the 20th. This variation mightamount to considerable in one month, but, as everything is figuredaccumulative from month to month, the records are very accuratewhen figured over a space of several months. After this full explanation of the methods fo
. Electrical world. end of each month, and asmeters are read in three different divisions at different times, theresults do not exactly correspond to the monthly output. The billsfor one-third of our consumers cover a period from the first of onemonth to the first of the next month, one-third from the loth to theloth, and one-third from the 20th to the 20th. This variation mightamount to considerable in one month, but, as everything is figuredaccumulative from month to month, the records are very accuratewhen figured over a space of several months. After this full explanation of the methods for arriving at theknown losses, it will be interesting to note the results obtained insome of the feeders for the past year. There are 24 different all of which the above records are kept up from month to author has plotted graphically the losses on some feeders, show-ing variation of losses from month to month and the gradual butsteady decrease in the unknown losses. The first curve (Fig. 4) is. changed from a 1,00c-volt individual transformer system to a 2,000-volt with a three-wire secondary network, with the exception thatthere are still some instances where individual transformers are used,due to the sparsely settled territory it covers. This tabulation shows several very interesting things. During thefirst two months the individual transformers were done away with TABLE SHOWING ECONOMY OF THREE-WIRE OVER INDIVIDUALTRANSFORMER SYSTEM. c £? t n n 0 c*^ 3 .§< 0 8< S - 0 s 1 0 Vi . ^ . :^i ^ £.s ^ £0 ^ mu ^ S ^ 6 I 19250 7778 4877 5940 222 138 ? 7 295 »7i 2 15970 6630 41-5 2235 6475 229 1-4 92373 l-o 150 .6 309 i 377 10506 52-5 6140 2,60 ?7 313 4 35320 2II66 60 9417 2390 ? ?53 3-3 463 721 28480 6421 2441 1440 3-5 580 1-3 770 692 6 40940 29113 643 s 15-7 2425 5-9 1503 3-6 605 ? 5 859 771 and replaced with a three-wire network showing a reduction intransformer i
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
