Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 247
ed under the headingControl. These difficulties overcome, the electric elevator became a realcompetitor of the older and better known hydraulic types. MOTOR DESIGN Requirements. The motor reqiiirements for elevator servicediffer materially from those for almost any other kind of work andthe duties… … Fig. 122. Direct-Current Elevator MotorCourtesy of Warner Elevator Manufacturing Company vator motor, however, must not only be able to start under full load,but it must pick up, or attain, its proper speed under that load anddo it within a period of from four to eight seconds. After normalspeed…
Electrical engineering
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
