JesseETG
Member
- Location
- Bakersfield California
- Occupation
- Electrician
Does anyone know why an AC unit fed from a 480volt subpanel on the 3rd floor of a building would trip the main breaker on the 1st floor.
Can't really answer without seeing the breakers' Time Current Curves for both overcurrent and ground faults.Am I able to possibly fix the issue by adjusting the breaker's Short-time Pickup?
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Give us breaker part numbers and I'll check that out.Am I able to possibly fix the issue by adjusting the breaker's Short-time Pickup?
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Trip Settings are probably not set properlyDoes anyone know why an AC unit fed from a 480volt subpanel on the 3rd floor of a building would trip the main breaker on the 1st floor.