. Electrical world. rent and momentarily operating the latter as motorsThe power transmission line is divided into two sections by a sectioninsulator, these divisions being respectively that from the power sta-tion to Pugliano. and from the power station to the cable third circuit leaving the switchboard was intended originally tobe a feeder for the power house cable railway division or to furnishcurrent for the electric motor which is to operate the cable has been found, however, that this feeder is unnecessary at present. .\ circuit-breaker has been placed at the upper
. Electrical world. rent and momentarily operating the latter as motorsThe power transmission line is divided into two sections by a sectioninsulator, these divisions being respectively that from the power sta-tion to Pugliano. and from the power station to the cable third circuit leaving the switchboard was intended originally tobe a feeder for the power house cable railway division or to furnishcurrent for the electric motor which is to operate the cable has been found, however, that this feeder is unnecessary at present. .\ circuit-breaker has been placed at the upper end of the rackrailway near the observatory, dividing the power house cable railw?-section into two parts. In case of an eruption it will be possible,therefore, to cut off all current from the electric railway division be-tween the observatory and the cable railwaj. The power circuitsare protected by Wurts lightning arresters, which are mounted onpoles along the line at intervals of about .6 mile. The lightning ar-. FIG. 4.—SECTION VIEWS OF ELECTRIC.\LLY-DRI\EN R.\CK LOCOMOTIVE. resters are grounded through the rails. In addition to the powerwires there are two telephone wires and one telegraph wire, used fodispatching and other purposes. All of the electrical apparatusthroughout the system was furnished by Brown. Boveri & Co., ofBaden, The general plan was that of Mr. E. Strub, of Zurich,Switzerland. May 7, 1904. ELECTRICAL WORLD and ENGINEER. 871 A Convenient and Economical Electrical Method forDetermining Mechanical Torque. By a. S. McAllister. A LITTLE experience with the well-known mechanical andelectrical methods for determining torque convinces one thatthe latter method is far preferable to the former with refer-ence to ease of adjustment, flexibility of operation and reliabilityof results. For ascertaining the output from either mechanical orelectrical motors, perhaps, the most familiar method is one whichinvolves the use of a direct-current generator, of which the s
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
