Persistent Ground Fault in a Dairy Panel
A constant 500 mA ground fault was detected on one of the panels through PrevTech's electrical network monitoring solution. The persistent anomaly triggered a proactive follow-up by our team, allowing the root cause to be identified and addressed before the situation could escalate further.
Context
In an agricultural building combining a barn, feed room, and dairy, the complexity of the electrical network increases the risk of faults that are difficult to spot without continuous monitoring. A 500 mA ground fault may appear minor on the surface, but it represents a chronic anomaly that stresses electrical components, can mask other underlying issues, and may evolve into a more serious failure over time.
What Was Detected
200A Panel (Barn 220' + Feed Room + Dairy): constant 500 mA ground fault recorded by PrevTech sensors.
Remote diagnostics identified the Dairy Sub-Panel as the likely source of the anomaly.
On-Site Findings
At the request of the PrevTech expert, the client opened the sub-panel with their electrician and shared a photo.
Inspection confirmed that a brass screw was the source of the ground fault.
Why This Is Critical
An unresolved, constant ground fault can mask the progression of a more serious problem. A misplaced brass screw in contact with a conductor can cause electrical arcing, accelerate corrosion of nearby components, or lead to localized overheating within the panel. In a humid environment like a dairy facility, these risks are significantly amplified.
Intervention
Remote diagnosis by the PrevTech expert team, with precise targeting of the faulty sub-panel.
Coordination with the client for an on-site inspection with their licensed electrician.
Identification and removal of the brass screw responsible for the ground fault.
Client returned to standard monitoring level, with instructions to contact PrevTech when future alerts arise.
outcome
Electrical anomaly resolved.
Through proactive follow-up by the PrevTech team and accurate remote diagnostics, the source of the ground fault was quickly located, without unnecessary disruption to daily operatio
What to Watch For
Persistent or recurring ground faults on multi-zone panels (production + dairy + feed room).
Non-compliant conductive materials found inside an electrical panel.