Make sure your insurance documents that you contacted them on this issue. I see many people have continued issues as time passes and without record of you calling they are not helpful in the future either. Document everything. As for your neighbors transformer, most often the transformer is protected with a fuse and that is what you hear "blow" Often not the cause of the issue but the effect. I would ask other neighbors if they had similiar issues with electronics, appliances, etc. If they did, it may be time to contact ComEd. Best of luck.