Transformers and Motors: A Single-source Reference for Electricians
Written for the NJATC to train apprentice and journeymen electricians, this in-depth technical reference is now available to all electricians. The material contains a minimum of theory and math, and provides the detailed information needed for equipment installation, maintenance, troubleshooting, repair, and replacement.
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amperes applied armature autotransformer bearings brushes capacitor capacitor-start motor cause centrifugal switch Check circuit breaker coil commutator conductors connected coolant core current flow DC motor delta designed determine device dielectric dielectric strength Direct current direction of rotation disconnect electrical electrician equal feeder Figure flux lines full-load fuse grease ground fault horsepower impedance increase induction motor installed insulation kilovolts load magnetic field maintenance maximum meter method nameplate neutral normally number of poles ohmmeter overcurrent overload phase polarity power factor primary windings problem protection pulley reactance reduced relay replaced repulsion motor resistance reverse run windings secondary windings shaded-pole motor shaft short circuit single-phase slip rings slots source voltage split-phase motor squirrel cage squirrel cage rotor starting torque stator synchronous motor synchronous speed temperature three-phase motors tion torque trans transformer turn voltage rating volts wired wound rotor