44 pages matching magnetic relays in this book
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a-c solenoid accuracy actuating adjustable adjustable-speed drive air gap alloy Alnico alternating current applications armature autotransformers basic bimetal brake brush cam timers capacitor cent characteristics circuit clutch coil connected control transformer Courtesy Curie temperature cycle d-c motor de-energized delay devices diameter differential direct current drive eddy-current electrical electromagnetic electromechanical electronic energized equipment flux frequency gear heat horsepower induction motor input insulation limit switches linear load machine magnetic field magnetic relays maximum mechanical mercury mercury switches metal mounted normally closed normally open operation output permanent magnet permanent-magnet plunger pole position potentiometer pressure produced rated reset resistance resistor reversed rheostat rotary rotating rotor sensor servo servomechanism Shaded-pole motors shaft shown in Fig shunt signal snap-acting speed range speed regulation spring starting torque stator synchro motor temperature thermal timers torque typical units usually valve vibration voltage volts wire