The apartment complex that is having these problems is served by a 208/120V 3phase transformers. The meter center is used to split up the 3 phase to 3 wire feeders to each individual unit. Most of the buildings are 24 units. 212 units total.
We did a larger complex across the street 246 units same owner but did NOT down size the neutrals. Same type of service, same meter centers, same tranformers, fed from same substation. Have not had a call about problems at second (246 unit) as have had with the first (212 unit). Since a lot of college students rent these places, computers and other electronic consumer equipment are all over the places.
Maybe the owner will allow us to fix it one day but right now it's too expensive and time consuming for him.
