In Part 1 of this two-part series, we presented a 3-phase, 480VAC motor circuit with its associated controls (Figure). We stepped through a logical, systematic approach to troubleshoot the main power ...

In an electrical circuit, what are bulbs, switches and motors collectively known as? Why does it help to think of an electrical circuit a bit like the central heating system in a house?

The handheld device uses a dynamic load-simulation program and a truck’s towing circuits to test aftermarket and integrated trailer brake controllers. It includes a 25-foot cable that plugs into ...

Be sure the electrical wiring installed for the fans is done according to code. There is a good chance you will have to install a new circuit or two if you buy large fans. They can draw a ...

Explains electric current, highlighting that it originates from a battery and requires a complete circuit to flow. It compares electric current to water flowing through pipes, using meters to ...

See how the land and water are connected, and investigate electrical circuits.

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

Using the factory wiring—while an option—is often discouraged due to many factors, including age, weight, routing, and excess circuits that are not needed in a dedicated race car.

Biologists at the University of Iowa have pinpointed how fruit flies—no matter their age—maintained neural circuits for certain motor functions, while losing their edge in other performance ...

Troubleshooting Motor Control Circuits — Part 1 Isolating problems in the main power circuit Feb. 16, 2015 5 min read ...