Industrial Electrical Maintenance and Repair in the Denver Metro
Troubleshooting is elimination with a meter: start at the load, work back toward the source, and prove each section before moving past it.
Most industrial failures come from a short list. Loose terminations heat up and eventually open or arc, overloads trip because a bearing is dragging or a phase is lost, contactors weld or their coils fail, moisture and dust get into enclosures that were never sealed right, and drives fault on conditions the log will name if someone reads it. Finding the cause means measuring voltage under load rather than at rest, checking current on all three phases for imbalance, and confirming the ground and neutral paths instead of assuming them. A fault that clears when a panel cover is removed is usually mechanical, and one that comes back at the same point in a cycle is usually process-driven.
Planned maintenance is what keeps those calls down. Infrared scans under normal load find hot terminations before they fail, torque checks against the listed values required by NEC 110.14(D) address what causes most of them, and insulation resistance testing on motors and feeders shows degradation while the equipment still runs. Panel schedules and equipment labels get corrected as work is done, and arc flash labeling gets revisited when the distribution changes. All of it follows NFPA 70E work practices, with equipment de-energized and verified before work begins unless there is a documented reason it cannot be.
What causes a motor to trip its overload repeatedly?
Mechanical load is the first thing to rule out: a failing bearing, a jammed or over-fed conveyor, a pump running past its curve. Electrical causes include a lost phase, which makes the remaining two carry far more current, voltage imbalance between phases, low incoming voltage, an overload heater or setting that does not match the nameplate, and winding insulation breaking down. Reading current on all three legs while it runs usually separates them quickly.
How often should industrial electrical equipment be inspected?
Most facilities scan switchgear, motor control centers, and major panels with infrared annually, under load, since a thermal signature only shows when current is flowing. Torque verification and cleaning on distribution equipment is typically done on a longer cycle during scheduled shutdowns. Equipment in dusty, wet, corrosive, or high-vibration areas needs a shorter interval than the same gear in a clean electrical room, and manufacturer instructions and NFPA 70B guidance are the usual reference.
What is an infrared scan and what does it find?
A thermal camera reads surface temperature across energized equipment while it carries normal load, and the technician compares phases and similar components against each other. Loose or corroded terminations, overloaded conductors, failing breakers, unbalanced loads, and bad connections inside bus joints all show as a hot spot well before they fail outright. The value is entirely in doing it under load, which is why it is scheduled during production rather than during a shutdown.
Based in Golden and on site across the Denver metro, from Lakewood, Wheat Ridge, and Arvada to the foothills.