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Recloser CT Selection
Why Rockwill Reclosers Use a 400/1 A CT Instead of 400/5 A？CT secondary burden and selection
In smart medium voltage reclosers such as Rockwill units, the integral CT is commonly specified at 400/1 A. The reason is not that "1 A is more accurate." It is that a 1 A secondary suits a digital controller, reduces the secondary burden, tolerates the long cable runs of pole mounted installations,
