I don't think that is a ground lead, it should be a neutral. The ground lead
is between the house meter and ground rod. There is also a rod at the
transformer and a ground between them, but not from transformer to meter.
Two hot conductors and a neutral.
If the ground jumper has excessive current then there is a neutral problem.
Michael C. Martin
6469 Old Solomons Island Rd
Tracys Landing, MD 20779
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