Just because it is gas insulated, does this mean you can not get to the primary terminations? The CTs should be wired out to a terminal strip. You can ratio it there.
We have a star delta or Wye Delta starter on a 550 hp air compressor motor. We are tripping the 800 amp feeder breaker feeding the starter. It does not trip on every start. We have done inrush measurements (se attached pdf). The motor gets up to speed during the reduced voltage portion of...
