Regional Jet 900 (CRJ900)
Flight Crew Air Transport Pilot (ATP)
Distraction; Human-Machine Interface; Time Pressure; Workload
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew FLC complied w / Automation / Advisory; Flight Crew Overcame Equipment Problem
Aircraft; Human Factors
During IOE with the First Officer on final approach received a GEN 2 caution message; briefly considered continuing but reconsidered and ran checklist. I misidentified GEN 1 as the faulty GEN and attempted reset; as a result the ADG deployed. Subsequently correctly identified and reset GEN 2.  Continued to landing uneventfully.  I as the PM made the mistake and was the cause of the misidentification and deployment of the ADG.I was very involved in giving instructions to my student for the approach and landing and allowed myself to be distracted enough that I misread the caution as a GEN 1 caution instead of a GEN 2.  Completely my mistake; I should have probably either continued at that point or conducted a go-around to assure adequate attention and fewer distractions which would have prevented a simple situation from becoming a more serious one.
CRJ-900 Captain reset Gen 1 for a GEN 2 caution message; therefore the air driven generator automatically deployed. He was busy on approach with an IOE student.