Earth leakage trip during lightning
Earth leakage trip during lightning
(OP)
Is it normal for a domestic 220V 30mA earthleakage unit to trip during a lightning storm? I have experienced problem this on numerous occasions.
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Earth leakage trip during lightning
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RE: Earth leakage trip during lightning
RE: Earth leakage trip during lightning
RE: Earth leakage trip during lightning
For lightning hits, 30 mA is a relatively low value. Isolation of the high-side neutral-to-ground connection may cure the problem, but for graded-primary insulation {or singe-bushing transformers,} the cure may be worse than the symptom.