A DNO engineer has been to look at the installation, and seems quite happy to step the transformer output down by one increment. This is 2.5% or approximately 6 volts. He will have to consult with his superiors though. While on site, he also asked why the G59 relay cannot be adjusted so that the turbine is more tolerant of variable grid voltages. Unfortunately we have one guy from Manweb saying “Adjust the G59, that will fix it”, and another Manweb engineer (of equivalent seniority, I asked!), saying that under no circumstances can the G59 relay be changed.
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