Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 87
on and if it then rests at 40, it is anindication that 40 amperehours of current have been taken from the batterywhich, of course, is not completely discharged. In order that the battery may beready always for emergency use, the changeover switch on the charging panelshould be immediately thrown to… … Fig. Bubbles 87—Method of DeterminingPolarity of a Generator. the STORAGE BATTERIES AND CHARGING CIRCUITS. 77 When this position is reached the charging current is thrown off automaticallyby means of the no voltage release magnet attached to the underload circuitbreaker.** In event the equipment is…
Telegraph, Wireless
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