. Practical wireless telegraphy; a complete text book for students of radio communication . nys Accumulators and ChargingPanel,—The type and rating of the Exide cells furnished by the Electric 182 PRACTICAL WIRELESS TELEGRAPHY. Storage Battery Company for auxiliary power is shown in the followingtable:— TYPE60 cell 7 PV—60 cell 11 NV—60 cell 13 MV—60 cell 17 MV— RATING72 ampere hours;140 ■ 168224 Type 7 PV battery is employed in connection with the J^-kilowatt panel trans-mitting set, type P-5 of the Marconi Company. The other types are for opera-tion of the 2-kilowatt, 500-cycle motor generat
. Practical wireless telegraphy; a complete text book for students of radio communication . nys Accumulators and ChargingPanel,—The type and rating of the Exide cells furnished by the Electric 182 PRACTICAL WIRELESS TELEGRAPHY. Storage Battery Company for auxiliary power is shown in the followingtable:— TYPE60 cell 7 PV—60 cell 11 NV—60 cell 13 MV—60 cell 17 MV— RATING72 ampere hours;140 ■ 168224 Type 7 PV battery is employed in connection with the J^-kilowatt panel trans-mitting set, type P-5 of the Marconi Company. The other types are for opera-tion of the 2-kilowatt, 500-cycle motor generators furnished with Marconi typeP-4 set and also for auxiliary light aboard the vessel. » A photograph of the E. S. B. charging panel is shown in Fig. 206, anda fundamental diagram of the connections from the board to the batteries andmotor generator in Fig. 207. diagram includes the complete connec-tions of the Marconi ^-K. W. 500-cycle Crocker-Wheeler type of motor generator,and the automatic starter. Fig. 208 shows a rear view of the wiring of the Fig. 205a—Charging Panel Used with Marconi Tuned Coil Sets. In the diagram of connections. Fig. 207, the connections for the voltmeter andthe double-pole double-throw switch and other switches for auxiliary lightingservice are purposely left out to simplify the drawing, but a detail of the volt-meter connection appears in Fig. 208. Returning to the diagram of Fig. 207: All apparatus concerned in the charge and dis-charge of the batteries appear to the left of the drawing, and the circuits of the automaticstarter to the right, including the wiring of the motor generator. A six-pole double-throwswitch, with knife-blades, 1, 2, 3, 4, S, 6, when thrown up in the drawing or to the left on theactual charging panel, places battery units A and B on charge, but in the opposite position, ondischarge, the circuits from the battery continuing through the blades S and 6 to the auto-matic starter and motor
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917
