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Fundamentals of Control
Control of Motor Starting
10 other sections not shown
amperes applied autotransformer auxiliary contact basic bias bimetallic strip break the circuit cause coil Ml collector condition connected contactor control circuit control components control device control relay control system conveyor Cutler-Hammer Cypak deenergized designed desired drop drum controller Electric energize coil equipment float switch forward and reverse full-voltage Genera horsepower interlock limit switch line contacts load logic element machine magnetic amplifier magnetic starter manual mechanical MEMORY motor starter normally closed contact normally open contact ohmmeter OL OL OL one-line diagram operation original input output overload protection overload relays overload units pilot devices plugging PNP transistor pressure switch proper pulse pump push button reduced-voltage starting reset resistor reverse starter saturation schematic diagram secondary control sequence set of contacts shown in Fig signal solenoid speed control squirrel-cage motor static control stop button symbol synchronous motor tank time-delay relay tion transistor trol trouble voltage volts wiring diagram wound-rotor motors Zener diode