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 ...

All questions and answers are based on the 2011 NEC. Q. What is the Code rule for motor control circuit overcurrent protection? A. Motor control conductors that aren’t tapped from the branch circuit ...

Electric motors, which convert electrical energy into mechanical energy, play an essential role in a variety of industrial and robotics applications. Given that electric motors account for ...

Relays, Contactors, and Motor Starters provides an overview of the primary components involved in electric motor control. Relays are electrical switches that control a circuit. When activated by ...

In the first part of this electrical troubleshooting series, we discussed how a consistent approach to electrical troubleshooting can help HVAC technicians get a comprehensive assessment of what is ...

This quick reference guide describes TE Circuit Protection’s products for automotive applications. These circuit protection devices help provide protection for overcurrent, overvoltage, and PCB trace ...

A new 32-bit RISC microcontroller from Renesas Technology America Inc. (www.renesas.com) is designed specifically for controlling electric motors in automotive chassis, safety and hybrid electric ...

Because of its mass, a battery takes a long time to change temperature. If a vehicle sits out all weekend in a zero-degree environment, it might take 30 hours to warm up the battery. Use the outside ...

Just about every product and machine we come in contact with uses electricity. To keep us safe, almost all of them have built-in safety features, especially those on the factory floor. Technicians, ...