/challenges-projects/project14/restoration-repair/b/blog/posts/repairing-a-generator-stator-earth-fault-relay---part-1Introduction As part of the repair and restoration theme for project14, I am taking a look at an obsolete UBX117 protection relay, that was removed during routine testing of a generator protection panel, due to faulty operation. I will go thr...en-USTelligent Community 12