Grid failure for Delta down to corrosion on Indonesian transformer
Corrison in a near-new high-voltage power transformer bought by Delta from Indonesia has been linked to a failure that caused a power surge across Dunedin. Delta chief executive Grady Cameron confirmed corrosion had been found inside one of two new high-voltage transformers - each costing $500,000 - installed at the city's ''crucial'' Halfway Bush substation in December. Both transformers were bought from I ...
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