I've just installed a residential power monitoring system that puts a CT around your two incoming lines. The control box that takes readings from the CTs ties into a 2-pole breaker to power itself, and then also measures and reports voltage on that circuit.
It had been reporting ~105V, which seemed very low, so I took a voltmeter to the lines and noticed that line-to-neutral I have ~123V, but line-to-line I have ~213V (I'm guessing the device is just halving the ~213V it's seeing to get ~105V).
My question is: is this normal? I expected that my line-to-line would be exactly double what my line-to-neutral voltage is. Any ideas why this might not be the case?
Thanks!
It had been reporting ~105V, which seemed very low, so I took a voltmeter to the lines and noticed that line-to-neutral I have ~123V, but line-to-line I have ~213V (I'm guessing the device is just halving the ~213V it's seeing to get ~105V).
My question is: is this normal? I expected that my line-to-line would be exactly double what my line-to-neutral voltage is. Any ideas why this might not be the case?
Thanks!
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