GE IAC and ABB HU Transformer Protective Relays in Nuclear Power Plants

Protective relay panel, photo courtesy North American Switchgear, whose website it located at http://www.naswgr.net/Digital, microprocessor-based protective relays aren’t yet a common staple in nuclear power plants because of the trepidation associated with installing sensitive solid-state circuitry in safety-critical applications. This trend, however, is slowly changing. Until then, though, it is useful to become aquainted with the older kinds of relays still in operation.

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