. Journal of electricity . tation, 15,000 feet. The full load regu-lation on this section of line, which is of No. 2 wiremost of the way and designed for 4000 kva., is ap-proximately 4 1/3%, while the drop due to the 800kilowatts under consideration is 1 2/3% on its phase. At Fremont the current is stepped down to 2500volts with a drop of 1% and sent through the usualoil switch and automatic induction regulator to theprimary feeder. This feeder of two 350,000 , carries the load of 300 amperes 12,000 feet toa distributing center at 14th Avenue Northeast andEast 45th Street, with a drop
. Journal of electricity . tation, 15,000 feet. The full load regu-lation on this section of line, which is of No. 2 wiremost of the way and designed for 4000 kva., is ap-proximately 4 1/3%, while the drop due to the 800kilowatts under consideration is 1 2/3% on its phase. At Fremont the current is stepped down to 2500volts with a drop of 1% and sent through the usualoil switch and automatic induction regulator to theprimary feeder. This feeder of two 350,000 , carries the load of 300 amperes 12,000 feet toa distributing center at 14th Avenue Northeast andEast 45th Street, with a drop of 15%. From thedistributing center a primary network spreads in alldirections, reaching an extreme length of 16,000 feet,using wire from No. 0 to No. 6, and giving a voltagedrop of 10% from distributing center to extremeend. The distributing transformer adds 2% drop,and the bus and service another 2%, making a grandtotal of to be compensated in order to get con-stant potential service. Theoretically this can all be. Typical outdoor substation in the residence district taken care of by regulator and by raising the busexcept the 10% from feeding point to the end of theprimary, provided that the load comes on at the sametime throughout the district. In practice the voltageat the feeding point is raised over the peak to 3% or4% above the standard voltage, so that the averageover the district is correct, with the nearest custom-ers getting high and the farthest low voltage. Theabnormal drop of 15% in the feeder itself is partlytaken care of by a 10% fixed booster at the sub-station, the remainder by automatic regulator. Itmay be noted that the inductive component of thisdrop is 933 volts against 224 volts due to resistance;also that the feeder wire is by no means overloaded. Method of Changing To substitute the new method of distribution forthe one outlined above for this district, we changethe voltage on the steam plant busses to 15,000 toneutral, 3-phase, or 25,980 volts b
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