AN A300 FLC HAS A POTENTIAL CONFLICT WITH TFC ON THE PARALLEL RWY ON AN OVERSHOOT OF RWY 35R DUE TO AN ACFT ELECTRICAL MALFUNCTION DURING THE VISUAL APCH TO DEN; CO.

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I WAS CAPT AND PNF ON THIS FLT APCHING DENVER. WE HAD DEPARTED THE DANDD 3 ARR AND HAD BEEN CLRED FOR A VISUAL APCH TO RWY 35R FROM A R BASE ENTRY AT APPROX 12 MI S OF THE ARPT. JUST AFTER ACCEPTING CLRNC FOR THE VISUAL APCH; I WAS DISTR BY A SERIES OF AMBER ANNUNCIATOR LIGHTS ON THE OVERHEAD PANEL AND THE TRIPPING OF THE YAW DAMPER SWITCH. IT WAS APPARENT THAT WE HAD SUFFERED SOME TYPE OF ELECTRICAL PROB; BUT I WAS NOT IMMEDIATELY ABLE TO IDENT WHAT THE PROB WAS. APPARENTLY; THE FO AND PF HAD BECOME DISTR AS WELL; BECAUSE I HEARD HIM EXCLAIM CONCERNING TFC WHICH WAS THEN BELOW US ON APCH TO RWY 35L. WE HAD OVERSHOT BOTH RWY CTRLINES. I COORDINATED WITH APCH FOR A RETURN TO RWY 35R AND CONTACTED TWR. I ELECTED TO HAVE THE FO CONTINUE THE APCH DESPITE THE LACK OF AUTOSPOILERS AND ANTISKID. THE ACFT WAS RELATIVELY LIGHT. THERE WAS A HEADWIND; AND THE RWY LENGTH ENABLED A LNDG WITH MINIMAL USE OF BRAKING. THE APCH WAS STABILIZED AND THE LNDG UNEVENTFUL. I AM NOT HAPPY ABOUT MY INABILITY TO RECOGNIZE A TR1 FAILURE (I EITHER DID NOT SPOT THE POPPED TR1 BREAKER ON DSCNT OR IT POPPED AFTER I CHKED THE BREAKER PANELS) AND THE SUBSEQUENT LOSS OF DC BUS #1 ON GS CAPTURE. I ALSO TAKE MYSELF TO TASK FOR LETTING THE FLT PATH DEGENERATE INTO THE RWY 35L APCH CORRIDOR. FLY THE AIRPLANE!