Download this article in PDF format. If you search the internet for “transformer equivalent circuits,” you’ll get five pages of over 100 small circuit diagrams.

Covering transformers, thermostats, potential relays, capacitors, multi-speed motors, pressure switches, relays, and contactors, this program focuses on single-phase equipment and incorporates furnace ...

Ferroresonant (constant voltage) transformer diagram. Secondary side is kept in full saturation with the tank, keeping voltage constant. (Credit: Usagi Electric) While troubleshooting the power ...

An autotransformer is a transformer having part of its winding included in both the input and output circuit.

Electromagnetism” is a silent educational film from the late 1920s that explains the basic principles of electromagnetism using simple animations, diagrams, and live-action demonstrations. The film ...