PUT SOME NEW CAPACITORS IN MY PLANT AND RECENTLY BLEW ONE UP. THE REASON WHY WE REPLACED THEM IS TO GET RID OF THE PCBs IN THE OLD ONES WHICH WHERE NOT HOOKED UP WHY? IT'S AN OLD BUILDING THESE CAPACITORS WHERE DISCONNECTED BEFORE MY TIME I GOT HERE 10 YEARS AGO. BEING TOLD BY THE MANUFACTURER THAT THE REASON WHY WE BLEW ONE UP IS DUE TO A HARMONIC ISSUE. COULD SOMEONE TELL ME WHAT IS THE BEST WAY TO CHECK TO SEE IF THERE IS INFACT A HARMONIC ISSUE. THANX FOR YOUR HELP.