Surge Protection for Refineries OVERVIEW Today's increased reliance on very sensitive electronics makes surge protection an important topic for Refineries. The Insurance Institute for Business & Home Safety study found that $26 billion dollars was lost due to non-lightning power surges. In addition, there are about 25 million lightning strikes in the US each year that cause between $650M to $1B in losses according to the Insurance Information Institute, State Farm©. This page discusses how to best protect equipment which might be used for various operations and processeses within the Refinery. Each section will conclude with a Surge Protective Device (SPD) Protection Point which identifies where and what SPD to use. Emergency Power | Distribution Power | SPD Control Cabinet Recommended SPDs for Emergency Power LocationEquipmentSystemSurge Protector Model #Link Automatic Transfer Switch Line Side / Service Entrance277/480Vac MDS600E-277Y Automatic Transfer Switch Load Side277/480Vac MS100-277Y Automatic Transfer Switch Line Side Genset277/480Vac MS200-277Y Genset Line Side277/480Vac M50-277Y-A Recommended SPDs for Distribution Power LocationEquipmentSystemSurge Protector Model #Link Distribution Panel277/480Vac MS100-277Y Sub Distribution Panel277/480Vac M50-277Y-A Recommended SPDs for Control Cabinet LocationEquipmentSystemSurge Protector Model #Link VFD AC Input480Vac (3W+G) DS74US-480D AC Control Power120VacDS240S-120/G Battery Backup24Vdc DS220S-24DC Instrumentation4-20mA DLA-24D3 PLCEthernet Ports MJ8-C6A PLCRS-485 DLA-12D3 RadioSCADA P8AX09-N/FF