. Practical wireless telegraphy; a complete text book for students of radio communication . shape, the return lead being supported under the every point where the leads divide, a smaller size conductor is used, and all the leads areso arranged that the distance between them can be adjusted, in order that the inductance(of the leads) can be varied as the requirements of the circuits demand. By using thissystem of distribution, the path of the current from the oscillation transformer to any tankin the entire bank of three hundred and eighty-four is exactly the same. This is very im-port
. Practical wireless telegraphy; a complete text book for students of radio communication . shape, the return lead being supported under the every point where the leads divide, a smaller size conductor is used, and all the leads areso arranged that the distance between them can be adjusted, in order that the inductance(of the leads) can be varied as the requirements of the circuits demand. By using thissystem of distribution, the path of the current from the oscillation transformer to any tankin the entire bank of three hundred and eighty-four is exactly the same. This is very im-portant, in order that no one tank will be required to work on a greater current than anyother. Each section of twenty-four tanks is set on a sloping floor, and from each sectionruns an oil drain, under the floor, to a single receiver. The condenser tanks at the high power stations are modifications of the Poldhu typeshown in Fig. 319. They consist of stoneware tanks, thirty inches high by seventeen incheswide, by seven inches thick. The design was adopted for the purpose of keeping in view. Fig. 318—^The 300 Kilowatt Oscillation Transformer Installed at theMarconi High Power Station at Kahuku, Hawaiian Islands. 304 PRACTICAL WIRELESS TELEGRAPHY. the necessity of the quick and easy replacement of plates. All the elements of a tank can belifted out bodily and new plates of glass readily inserted. A fibre sling carries thirty-oneglass plates and twenty-nine zinc plates, every alternate zinc plate being connected to thebuses. As will be seen in the sketch, the plates are connected to the terminals by flexible strips,which compensate for any inequalities in the depth of the tanks. The covers are thoroughlyoil-sealed, and the whole tank is filled with a high grade mineral oil. As the slightest traceof moisture in the oil renders its insulating value inadequate, and as oil is highly hygroscopic,it is quite essential to use only very dry oil. To obtain this, a filter press is installed
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917
