. Electric railway journal . had cooled offthoroughly the fittings were wiped with burlap to removeall traces of the surplus solder. A great deal of care has been given to identify all elec-trical connections, so that even a new man would havelittle trouble in following out the circuits. The doors ofthe brick oil-switch compartments are numbered in accord-ance with the machines served by them, and all the trans-former taps and switching circuits are marked right up tothe brush-holders of the rotary converters. Similarly, theammeter shunts and current transformers are numbered inaccordance with
. Electric railway journal . had cooled offthoroughly the fittings were wiped with burlap to removeall traces of the surplus solder. A great deal of care has been given to identify all elec-trical connections, so that even a new man would havelittle trouble in following out the circuits. The doors ofthe brick oil-switch compartments are numbered in accord-ance with the machines served by them, and all the trans-former taps and switching circuits are marked right up tothe brush-holders of the rotary converters. Similarly, theammeter shunts and current transformers are numbered inaccordance with their respective switchboard instruments. The switchboard, which is composed of 17 black marblepanels, carries a full complement of and instru-ments, including line wattmeters, a synchroscope and aTirrill regulator. Two of the panels carry two feederseach with but one circuit-breaker per panel, in accordancewith the General Electric Companys C. S. F. design. The Oerces field Shunt field FieldBr„s%/ \ : OlL switches ar\a\ cells ir i trans\ 3eU,conn Relay RotaryPanel I * I I3E00 volts I 1 ■ f Trans formers 370 volts Starting Panel \Haif\ New Jersey & Pennsylvania Traction Company—Simplified Wiring Diagram of the Lawrenceville Substation renceville is cared for by a Christensen type AA com-pressor. The air pressure is limited to 75 lb. to avoid blow-ing the carbon dust into the leaf mica. A most unusual feature for a station of such small ca-pacity is the use of jHj-in. copper tubing with elbows andtees for the high-tension busbars and oil switch from the fact that this tubing cost about one-thirdless than insulated wire for the same purpose, it is far su-perior to the latter material in stability and wires naturally tend to sag and become soiledafter a time, whereas the tubing can be kept highly polishedby the occasional application of an emery cloth. This cop-per tubing was quickly and easily installed in the f
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
