. Journal of electricity. unreliable — in consequence concrete poles are largelybeing substituted for teakwood. with water condensing on transformers having con-necting boards; even the bushings for wire inletshave caused trouble during the dry season, the com-pound used not being able to stand the suddenchanges in temperature from night to day. Sometrouble by overheating of transformers was experi-enced about five years ago, on account of the neutralnot being grounded, and the short circuiting of thethird harmonic currents through the neutral wireback to the generator,—but as the neutral is n
. Journal of electricity. unreliable — in consequence concrete poles are largelybeing substituted for teakwood. with water condensing on transformers having con-necting boards; even the bushings for wire inletshave caused trouble during the dry season, the com-pound used not being able to stand the suddenchanges in temperature from night to day. Sometrouble by overheating of transformers was experi-enced about five years ago, on account of the neutralnot being grounded, and the short circuiting of thethird harmonic currents through the neutral wireback to the generator,—but as the neutral is nowonly used for single phase branch lines, this troublehas been eliminated. The motors installed range all the way fromYs to 200 , the smaller capacities being mostlyused for printing machinery, small grain and sawmills and pumping, and the larger motors for sawmills and rice mills, cement plants and water pressure used for power is 100 or 175 volt; some600 and 3500 volt motors are in use and these have. THE MARKET PLACE All markets are traversed by canals and in this respect the tram car hasnot yet come into its own. The Bazaar is coming to represent a consid-erable lighting load, however, as a large part of the business is carriedon at night. upkeep of lines and house installations. Two sys-tems are used for inside work, one having the wiresstrung in varnished teakwood casings, and the otherusing regular conduits of the simplex type. Thefirst is only used for wooden buildings; the latter forstone or concrete structures. The reason why the old-fashioned method of using wooden casing is still inpractice is, that nearly every wooden house in townhas white ants, and these beasts eat the insulationsoff the wires, if no regular inspection is made. Thewooden casing, which being teakwood, in itself issafe against the ants, affords an easy way to ascer-tain the condition of the wires, by simply remov-ing the capping for a few meters in the basementof the house to be
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Keywords: ., bookcentury1900, bookdecade1910, bookidjo, booksubjectelectricity
