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. . ^ « Ci C-U3 2O l »r Si C5 fi, S flu «j S 6 171 76 ELECTRIC RAILWAYS in Figs. 77 and 78. This is a coil and plunger mounted in the con-troller case. When excessive current is drawn the plunger is attractedinto the coil and pushes a bronze plug under the star-wheel of thecontroller, where i
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. . ^ « Ci C-U3 2O l »r Si C5 fi, S flu «j S 6 171 76 ELECTRIC RAILWAYS in Figs. 77 and 78. This is a coil and plunger mounted in the con-troller case. When excessive current is drawn the plunger is attractedinto the coil and pushes a bronze plug under the star-wheel of thecontroller, where it engages a pin which stops the movement of thecontroller handle. When the current falls below a predeterminedvalue the plunger is automatically withdrawn, thus allowing furthermovement of the handle until another excessive demand is madeupon the circuit. CONTROL APPARATUS ON GENERAL ELECTRIC1200=VOLT EQUIPMENT Whereas the .standard voltage in use on trolley systems hasfor several years been 600 volts, there has been a strong tendencylately to increase this voltage on interurban railway systemsto 1,200 volts. This necessitates either the use of two 1,200-voltmotors or the use of two pairs of 600-volt motors, the motors ofeach pair being in series for operation on 1,200 volts. As the low-voltage mot
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Keywords: ., bookauthoramericantechnicalsoci, bookcentury1900, bookdecade1910
