A B717 Captain reported being dispatched with the right generator deferred and MEL requirements complied with. Shortly after takeoff the First Officer's Display Units blank and the Captain assumes flying duties. EAD indicates Right AC and DC Bus failures. Seconds later all returns to normal but the crew elects to divert for maintenance.

Narrative

Aircraft had right generator MEL. Everything was checked per the MEL. First Officer was flying pilot. After takeoff started left turn per ATC and number 4; 5 and 6 DU [Display Units] failed. I took the controls. Initially all DU's went blank we had the stick shaker just like initial start up in morning. BUS DC R OFF and BUS AC R OFF were the first things on EAD [Engine and Alerting Display]. Seconds later everything came up. With all the failures we had we declared an emergency. We were heavy and elected for the nearest major airport vector to runway for landing.This is the list that was displayed. BUS DC R OFF; BUS AC R OFF; SELECT FADEC ALTN; HYD TRANS DISAG; GEN R OFF; CAB PRES SYS; MAN WING ICE R FAIL; WING ICE L FAIL; CTR AFT PUMP; LO FUEL QTY SYS FAIL; TNK L FWD PMP; LO PSEU FAIL; AUTO TRIM FAIL; SPOILER OTBD FAIL; FCC 2 FAIL; PRED WSHEAR FAULT; STICK PUSHER FAIL; FMS 2 FAIL; VIA FAIL; ATC XPDR 2 FAIL; FRAIN MAST HEAT RUD PITOT FAIL; PITOT FO FAIL; AOA HEAT R FAIL ;IRS 2 ON BATT; STALL WARN FAIL; VOR 2 FAIL; GPS 2 FAIL; AGS FAIL; ILS 2 FAIL; DME 2 FAIL; STATIC R HEAT ENG R SYSTEM FAULT ENGINE L SYS FAULT; PODS FAULT. These faults and failures along with watching PLI [Pitch Limit Indicator] go below pitch bar made the NUMBER ONE thing in my mind getting this aircraft on the ground safely. As you can see quiet a bit was going on. The superb training I have always received certainly played the role in my ability to safely get aircraft on ground.