Basic Electricity I
Covers basic, nonmathematical approach to understanding principles of electricity. Introduces electron theory, static electricity, electrons in motion, and magnetism. Covers basic methods of measuring current, voltage, and resistance. Explains circuit components conductors, insulators, resistors, capacitors and simple Ohm's Law calculations for DC and AC circuits.
Basic Electricity II (Ladder Diagrams)
This 70-page book, which includes a large fold-out diagram for an actual rotary screw compressor control circuit, explains the fundamental lines and symbols used in ladder diagrams and also covers the principles of operation and symbols for switches, timers, potential devices used in refrigeration systems, alarm circuits, defrost cycles, and troubleshooting.
Electrical Troubleshooting (Also available in Spanish)
Covers use of schematic diagrams, determining sequence of operation, and use of building diagrams and single-line diagrams.Includes troubleshooting procedures for control circuit and combination starters and DC and AC motors, identifying unmarked leads on three-phase delta and Y-connected motors, and troubleshooting lighting systems.