Unexpected trip / alarm
Evidence preparation · technical review pending
This symptom does not establish a cause or normal/abnormal limit. Collect only evidence within approved access; your site plan and qualified reviewer govern decisions.
Information to bring to review
- Preserve original event/alarm logs and time synchronization context.
- Identify affected equipment, relay/settings revision and operating state.
- Reference the approved investigation scope and existing test records.
- A symptom does not identify a failed component. These notes do not instruct resetting, bypassing or energizing equipment.
Related equipment records
Switchgear & circuit breakersProtective relaysTrip circuits & lockout relaysElectric motorsUninterruptible power supplies
Relevant tool-type research
Only for methods already in the approved scope; not a test prescription or recommendation.