You gotta be kidding me. Electricians won’t add a Tesla wall connector on the backup side of ESS

A few comments:

– The vines probably initially had a marginal neutrality, possibly already with a tension imbalance. During the stress test, the imbalance in loads on the two legs must have been greater than before, resulting in sufficient tension imbalance to damage the equipment.

– The connection to earth does not play a role in such low-voltage issues (ie <1000 V).

– With an intact neutral, 120V LN loads on the opposite legs will work as expected (and if there is a current imbalance between the pull on the two legs, the neutral will carry that current). If the neutral is compromised, you get a series connection , supplied with 240V, with the parallel 120V loads on one branch in series with the parallel 120V loads on the other branch (and the current through the two series loads must be the same, there is no neutral conductor to carry the unbalanced current) . The voltage drop between the two series loads is thus divided proportionally to their impedances. If they are the same, you won’t notice the missing neutral. However, when one leg has a higher impedance (which would mean fewer individual ones would be on if the individual loads were all the same, since the individual loads are in parallel), more voltage will drop, often above 120V enough to cause damage Equipment.

Cheers, Wayne

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