. Practical wireless telegraphy; a complete text book for students of radio communication . ected in series. A completely satisfactory diagram of this connection appears in Fig. 86, where the four-blade switch, when thrown to the charge position, connects battery A and battery B inparallel, but in the discharge position reconnects them in series giving approximately 126volts for the operation of a standard motor generator. This diagram shows (1) the positionof the charging resistance and the underload circuit breaker in the charging circuit, (2)the voltage of the generator, (3) the voltage of


. Practical wireless telegraphy; a complete text book for students of radio communication . ected in series. A completely satisfactory diagram of this connection appears in Fig. 86, where the four-blade switch, when thrown to the charge position, connects battery A and battery B inparallel, but in the discharge position reconnects them in series giving approximately 126volts for the operation of a standard motor generator. This diagram shows (1) the positionof the charging resistance and the underload circuit breaker in the charging circuit, (2)the voltage of the generator, (3) the voltage of the individual battery units and (4) thefinal discharge voltage of the cells. The charging dynamo in the case of a marine radioinstallation is the ships generator, which is situated at some point in the ships engine room. It has been mentioned that two values of charging current are employed for the exidetype of cells, a heavy value for the start of the charge and a lesser value at the completionof the charge, but no special appliances are fitted to the Electric Storage Battery Companys. Fig. 85a—Portable Exide Storage Cell, Supplied withMarconi Emergency Sets. STORAGE BATTERIES AND CHARGING CIRCUITS. 75


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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917