We have repaired quite a few GE VB.1 medium voltage breakers. We have factory tooling and guages to perform all mechanism repairs and bottle replacements with the tighest of tolerances. Every medium voltage breaker that comes through our facility is not just repaired or tested we spend the required time to thoroughly check and adjust all wipe and gap measurements, we also measure several data points such as current and timing for charging motors, close and trip coils, and auxilliary contact resistance. This is in addition to the standard NETA maintenance testing specifications.