Loose neutral lug on residential transformer

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campsite

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Some information that might be helpful. 5 years ago we built a new house. Due to heat pump load on new house, the power company set a new, larger transformer. Over the last several years, we have replaced several long life lite bulbs, surge protectors, ceiling fan, refrigerator etc. 1 month ago, melted surge protectors, flickering lights. Finally was able to read 245vac on one 120vac leg in our breaker panel. Power company came out several times, meter base always read 120vac on each leg when they showed up. As soon as they went down our lane to leave, lights flickered. Finally they agreed to put recorder on meter base. They had even put a "beast" on the meter base to check transformer load. They continued to say problem was with our wiring, which was pristine with not sign of arcing or shorting. By this time, we had non-functional garage door openers, GFCI outlets, ovens, refer, range top, bass speaker, coffee maker on and on...Finally when they plugged in tbe meter base recorder, the 245vac stayed on one leg of breaker panel, other leg was 0vac. They sent a lineman up the pole and found the neutral had never been tightened down on the transformer. Up to this time, had to endure engineers telling me it had to be our problem, the tranformer was just wire windi gs, etc. I told them I knew how a transformer worked, I got an "A" in college physics. $20,000 later in damage, problem solved.
 
Some information that might be helpful. 5 years ago we built a new house. Due to heat pump load on new house, the power company set a new, larger transformer. Over the last several years, we have replaced several long life lite bulbs, surge protectors, ceiling fan, refrigerator etc. 1 month ago, melted surge protectors, flickering lights. Finally was able to read 245vac on one 120vac leg in our breaker panel. Power company came out several times, meter base always read 120vac on each leg when they showed up. As soon as they went down our lane to leave, lights flickered. Finally they agreed to put recorder on meter base. They had even put a "beast" on the meter base to check transformer load. They continued to say problem was with our wiring, which was pristine with not sign of arcing or shorting. By this time, we had non-functional garage door openers, GFCI outlets, ovens, refer, range top, bass speaker, coffee maker on and on...Finally when they plugged in tbe meter base recorder, the 245vac stayed on one leg of breaker panel, other leg was 0vac. They sent a lineman up the pole and found the neutral had never been tightened down on the transformer. Up to this time, had to endure engineers telling me it had to be our problem, the tranformer was just wire windi gs, etc. I told them I knew how a transformer worked, I got an "A" in college physics. $20,000 later in damage, problem solved.

If you search this site for "loose", "missing", or "bad" neutral you'll find a ton of threads. Sorry it was so expensive for you. You might try filing a claim with the power company and/or making a complaint to your public utilities commission. If any of the losses were covered by insurance let your carrier know; they'll want their money too.
 
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