ENA TS 48-3 : ISSUE 2 2013
Current
The latest, up-to-date edition.
INSTANTANEOUS HIGH-IMPEDANCE DIFFERENTIAL PROTECTION
12-01-2013
Describes the required performance and proving of instantaneous high-impedance differential protective systems as applied to synchronous machines, transformers, reactors, bus bars and similar primary plant connections where bias is not required to cater for spill current (due for example to magnetizing inrush or tap changing).
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