Electrical news and engineering . of the auxiliaries in the rail mill are motordriven through ), i mill type) motors, generally withdrum control, although contactor control is used to a limitedextent. New Plate Mill A new plate null is being constructed to roll tin inchships plates. This building will covet . 650,000 squareleet. and the main rolls will be driven by ) , 6,600 vollmotor, 82 The total weight of this motor ami its flywheel Uill be about 330 tons (660,000 lbs.). Motor will beot the slip ring type, with a small percentage of resistancepermanentlj introduced
Electrical news and engineering . of the auxiliaries in the rail mill are motordriven through ), i mill type) motors, generally withdrum control, although contactor control is used to a limitedextent. New Plate Mill A new plate null is being constructed to roll tin inchships plates. This building will covet . 650,000 squareleet. and the main rolls will be driven by ) , 6,600 vollmotor, 82 The total weight of this motor ami its flywheel Uill be about 330 tons (660,000 lbs.). Motor will beot the slip ring type, with a small percentage of resistancepermanentlj introduced into the secondary circuit, so thaiflywheel may deliver power to the rolls when the load connmi The control equipment will he of the automatic con-tactor type with hand control for acceleration, also pluggingpoints to bring the motor to rest in reasonable time, in spiteof the great inertia of the moving mass. All of the auxiliaries of this plate mill will be electricallydriven. The electrical equipment will he of the most modern. design. Contactor control being very largely used, both onthe cranes and on the auxiliary motors \lniiil 200 motors of various kinds and sizes will he re-quired for the plate null The nail mill is alreadj electrically driven in most cases>\ constant speed induction motors, a large number of chaindrives being u-id to prevent the vibration coming from themachines in the mill re acting on tin motors. The coke oven plant is driven largelj by M. D. (mill type)motors, while electric locomotives, 30 ton capacity, are usedto haul cars of coke, etc. neat the coking plant. The question of the use ol -i-is engines as prime moverswas thoroughlj discussed ami it tvas decided that mi account
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Keywords: ., bo, bookcentury1800, bookdecade1890, bookidelectricalnewsen28donm
