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  1. gftt

    Loss of Critical Load

    We had a MGE Comet UPS unit, 125 kVA, loaded to 43.5 kVA (small motors, controls, etc.) that dropped off line. The bypass breaker tripped (thermal 200 Amp frame) and critical load was dropped. The fault codes in the UPS indicated an inverter fault, rectifier fault, and thermal overload. The...

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