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 255
rig. 125. Back View of Control BoardCourtesy of Otis Elevator Company 221 17:2 ELEVATORS TYPES OF CONTROLLERS Functions. A controller differs from the ordinary motorstarter in that it performs several other functions besides that ofsimply starting the motor. It controls the energizing or cutting… … Fig. 120. Freight and Passenger Elevator for Direi-t Current Operated li\ Lever or nund CableCourtesy of Kaeatncr and Jlccht Company ance in the field circuit, thus gi\ing increased speed when needed;in the case of the interpolar motor previously described, it cuts in orout the series windings for…
Electrical engineering
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
