Transformers

Transformers

Transformers are the workhorse for the manipulation and isolation of AC power. They are found in everything from small chargers to the largest power substations. While a technician rarely repairs a transformer, it is necessary to identify transformer failures. Accordingly, understanding the principle operation and applications of a transformer is a fundamental need for every… Read More »

Inductance, Capacitance, and Impedance

Inductance, Capacitance and Impedance

Resistance is a circuit characteristic that operates the same in both AC and DC circuits. However, three additional circuit characteristics are important in order to understand and analyze AC circuit operation: Inductance, Capacitance, and Impedance. Inductance, Capacitance and Impedance Course Objectives Describe operation of an inductor. Describe operation of a capacitor. Calculate capacitance and inductance… Read More »

AC Generation and Basic AC Concepts

AC Generation and Basic AC Concepts

Generally, most people are familiar with alternating current (AC) in their everyday lives. It is common knowledge that a wall socket in a home in the United States is 120 VAC, but did you know that the peak voltage from that wall socket is 170 volts? That fact is simply a characteristic of AC that… Read More »

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