Canadian engineer . ree brick and concrete substations have been of these are at Cobalt; one at Cobalt Lake having acapacity of 5,500 horse-power, and one at Brady Lake havinga capacity of 3,200 horse-power. The third station is atSouth Lorraine for supplying the mines of that substation is equipped with all the necessary step-down transformers, lightning arresters, switching devices,etc. The electrical current is delivered to the customer at2,200 volts, and by means of pole transformers is reducedto 550 volts for motor service, and no polts for is sold
Canadian engineer . ree brick and concrete substations have been of these are at Cobalt; one at Cobalt Lake having acapacity of 5,500 horse-power, and one at Brady Lake havinga capacity of 3,200 horse-power. The third station is atSouth Lorraine for supplying the mines of that substation is equipped with all the necessary step-down transformers, lightning arresters, switching devices,etc. The electrical current is delivered to the customer at2,200 volts, and by means of pole transformers is reducedto 550 volts for motor service, and no polts for is sold to the consumer on a fiat rate of $50 per 8i6 THE CANADIAN ENGINEER Volume 22. horse-power year, or on a meter basis, with prices varyingfor the class of service and the amount consumed. Whilethis rate is high in comparison with the rates for similarservice in industrial centres, it is eminently fair, consid-ering the high cost of such an undertaking and the that must be looked for in a mining General View of Concrete Power House, Operators Houses, Penstock Covering, Tail-race and Double Pole Lines to Cobalt. An interesting feature of this companys power de-velopment is its system for supplying compressed air tothe various mines. At both the Cobalt Lake and BradyLake substations are identical compressor plants, each con-sisting of two two-stage air compressors. Each machine hasa capacity of 5,000 cubic feet of free air per minute, andis driven by a 1,000 horse-power motor. This gives a totalcapacity of 20,000 cubic feet of free air. The compressorsare equipped with the regular intercoolers, and each sub-station has installed an extra large water after-cooling sys-tem. From this the air passes through a large separator,and then through an air-cooling system. On account of thehigh temperature in the summer this latter system is onlyin use during the winter months.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishertoron, bookyear1893
