. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . hing actual service con-ditons. Another distinctive Westinghouse prod-uct, the portable substation, is shown ina model built to scale, which is an exactreproduction of the car and all apparatusused in this important accessory to rail-way work and which has been an objectof special interest. All of the exhibits are appropriatelygrouped around the locomotive as a centerpiece, each group pertaining to some par-ticular branch of the electrical industry,the whole exhibit having been awardedthe Gol
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . hing actual service con-ditons. Another distinctive Westinghouse prod-uct, the portable substation, is shown ina model built to scale, which is an exactreproduction of the car and all apparatusused in this important accessory to rail-way work and which has been an objectof special interest. All of the exhibits are appropriatelygrouped around the locomotive as a centerpiece, each group pertaining to some par-ticular branch of the electrical industry,the whole exhibit having been awardedthe Gold Medal by the Jury of Awardsas being the most attractive and completeexhibit in the Transportation exhibit also is the headquarters ofthe Director of Exhibits, H. W. Cope,who has charge of all the WestinghouseElectric & Mfg. Company interests atthe Exposition. General Electric Companys New Type ofCircuit Opening Oil Dashpot Relay A new type of circuit-opening inversetime limit oil dashpot relay has recentlybeen developed by the General ElectricCompany for use in conjunction with a. NEW COMPENSATOR TYPE RELAY. low voltage release for automatic, over-load and low-voltage protection of alter-nating current motors up to 2,500 voltsand 300 amperes. The relay is connected in scries with the line, the low voltage release acrossone phase in the usual manner with thelow voltage coil in series with the relaycontacts. On overload greater than the currentsetting the relay, the relay contacts open-circuit the low voltage release coil andthe motor is cut out of circuit. If thevoltage drops to a predetermined per cent,of normal, the motor is also disconnectedfrom the power supply. This relay is mostly employed withmotors using self-contained compensatorcontrol, but sometimes for switchboardservice when both low voltage and timedelay overload protection are series relays replace the secondaryrelays, current transformers and oilswitch tripping coils otherwise required
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Keywords: ., bookcentury1900, bookdecade1900, bookidrailwaylocom, bookyear1901
