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{{#ask: [[Category:Licensee Event Report]] [[System::Emergency Feedwater System]]
 |?Site
 |?Start date
 |?Title
 |?Description
 |format=table
 |limit=50
 |offset=0
 |sort=
 |order=asc
 |mainlabel=
 |searchlabel=[LER]
}}

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{
    "query_string": "[[Category:Licensee Event Report]] [[System::Emergency Feedwater System]]",
    "query_source": "SMWSQLStore",
    "query_time": "0.0389",
    "from_cache": false
}

	Site	Start date	Title	Description
05000302/LER-1982-050, Forwards LER 82-050/01T-0.Detailed Event Analysis Encl	Crystal River	13 August 1982	Forwards LER 82-050/01T-0.Detailed Event Analysis Encl
05000302/LER-1996-023, Forwards Suppl to LER 96-023-00 to Provide Update to Actions to Prevent Recurrence.Suppl Changes Commitment Made in LER 96-023-00 to Revise Improved Tech Specs	Crystal River	13 December 1997	Forwards Suppl to LER 96-023-00 to Provide Update to Actions to Prevent Recurrence.Suppl Changes Commitment Made in LER 96-023-00 to Revise Improved Tech Specs
05000400/LER-2016-005	Harris	8 October 2016 7 December 2016	Offsite Power Undervoltage Caused Actuation of Several Systems LER 16-005-00 for Shearon Harris Nuclear Power Plant, Unit 1 Regarding Offsite Power Undervoltage Caused Actuation of Several Systems	On October 8, 2016, at approximately 1310 EDT, while in Mode 4 for a planned refueling outage, Shearon Harris Nuclear Power Plant experienced an undervoltage (UV) condition in the switchyard for about 1.5 seconds. This triggered the UV relays for both emergency 6.9 kV buses and for several of the non-nuclear safety 6.9kV auxiliary buses, resulting in the respective supply breakers opening. At the time of the UV, the site was experiencing high winds and rain from the effects of Hurricane Matthew. Both Emergency Diesel Generators started and loaded as designed. Operations restored offsite power at 2154 EDT after verifying stable grid behavior for an extended period. Additionally, the Containment Ventilation Isolation system and the Auxiliary Feedwater system actuated and performed as designed. The site declared an Unusual Event at 1328 EDT for loss of offsite power to emergency buses for greater than 15 minutes. At 2049 EDT, the Unusual Event was terminated. The causes of the UV were determined to be a line fault on the Cape Fear - West End 230 kV line and equipment deficiencies associated with the Cape Fear 230 kV Substation protection relays which prevented immediate clearing of the fault.

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