The digital voltmeter is the best basic tool for electrical troubleshooting, because it's calibrated and exact. But remember, the digital voltmeter can't detect a high-resistance fault if the circuit ...

A few weeks ago, I wrote about fixing the VDO windshield washer pump in a vintage European car. As part of that, I quickly stepped through troubleshooting the system to reach the point where I ...

Photo 2. This worker is attaching the current clamp from a power quality analyzer to a feeder conductor supplying a three-phase panelboard in a data facility. Study power quality to track down some of ...

Electrical problems are one of the most common problems encountered by technicians in the field. One common pitfall service technicians fall into is approaching the issue by testing specific ...

You recently hired on as the Plant Electrical Maintenance Supervisor. The job was created because of a list of problems that have remained unsolved despite the best efforts of the eleven maintenance ...