Browse wiki

Jump to navigation Jump to search
ENS 41280
Show incoming properties
Category
ENS Notification  and Power Reactor
CFR
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation +, 10 CFR 50.72(b)(3)(iv)(A), System Actuation +, 10 CFR 50.72#b2ivB +  and 10 CFR 50.72#b3ivB +
Current power
0  +
Current reactor mode
Hot Standby +
Description
Unit 2 reactor trip due to 2C steam genera … Unit 2 reactor trip due to 2C steam generator LO-2 reactor protection signal. Auxiliary Feed Water actuated as expected. No additional malfunctions or unexpected plant response. Cause of LO-2 steam generator reactor protection signal under investigation. </br>This is a 4 hour notification of an RPS actuation per 10 CFR 50.72(b)(2)(iv)(B). The 8 hour notification of Auxiliary Feed Water system actuation per 10 CFR 50.72 (b)(3)(iv)(B) is being made under this same telephone call.</br>The licensee notified the NRC Resident Inspector. All control rods fully inserted. Decay heat is being removed to the main condenser via the turbine by-pass valves. The electrical grid is stable.</br>* * * UPDATE FROM F. EHRHARDT TO M. RIPLEY 15:55 ET 12/22/04 * * *</br>The licensee has determined that the RPS and Auxiliary Feed Water actuations were the result of an actual low level in the 2C steam generator. The cause of the low level is under investigation. The NRC Resident Inspector was informed. Notified R3 DO (L. Kozak). was informed. Notified R3 DO (L. Kozak).  +
Discovered date
19:07:00, 22 December 2004  +
ENS id number
41,280  +
Emergency class
Non Emergency +
Entered date
15:03:00, 22 December 2004  +
Equipment trip
Reactor Trip +
Event date
19:07:00, 22 December 2004  +
Event description
Unit 2 reactor trip due to 2C steam genera … Unit 2 reactor trip due to 2C steam generator LO-2 reactor protection signal. Auxiliary Feed Water actuated as expected. No additional malfunctions or unexpected plant response. Cause of LO-2 steam generator reactor protection signal under investigation. </br>This is a 4 hour notification of an RPS actuation per 10 CFR 50.72(b)(2)(iv)(B). The 8 hour notification of Auxiliary Feed Water system actuation per 10 CFR 50.72 (b)(3)(iv)(B) is being made under this same telephone call.</br>The licensee notified the NRC Resident Inspector. All control rods fully inserted. Decay heat is being removed to the main condenser via the turbine by-pass valves. The electrical grid is stable.</br>* * * UPDATE FROM F. EHRHARDT TO M. RIPLEY 15:55 ET 12/22/04 * * *</br>The licensee has determined that the RPS and Auxiliary Feed Water actuations were the result of an actual low level in the 2C steam generator. The cause of the low level is under investigation. The NRC Resident Inspector was informed. Notified R3 DO (L. Kozak). was informed. Notified R3 DO (L. Kozak).  +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
ENS 41280 +, ENS 41280 +, ENS 41280 +, ENS 41280 +, ENS 41280 +, ENS 41280 +, ENS 41280 +, ENS 41280 +, ENS 41280 +, ENS 41280 +, ENS 41280 +, ENS 41280 +, ENS 41280 +, ENS 41280 +  and ENS 41280 +
Hours
4.62963e-5 d (0.00111 hours, 6.613757e-6 weeks, 1.522e-6 months)  +  and 9.259259e-5 d (0.00222 hours, 1.322751e-5 weeks, 3.044e-6 months)  +
Initial power
100  +
Initial reactor mode
Power Operation +
Last update date
00:00:00, 22 December 2004  +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
02:22:07, 2 March 2018  +
NRC officer
Mike Ripley +
Notification date
15:03:00, 22 December 2004  +
Originated by
Frank Ehrhardt +
Reactor critical
true  +
Reactor type
Westinghouse PWR 4-Loop +
Region
NRC Region 3 +
Reporting criterion
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation +  and 10 CFR 50.72(b)(3)(iv)(A), System Actuation +
Reporting time
-0.17 d (-4.07 hours, -0.0242 weeks, -0.00558 months)  +
Site
Braidwood +
Start date
19:07:00, 22 December 2004  +
State
Illinois +
System
Steam Generator +, Auxiliary Feedwater +, Main Condenser +  and Control Rod +
Title
Rps Actuation Due to Steam Generator Low Level Signal  +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.
http://www.nrc.gov/reading-rm/doc-collections/event-status/event/2004/20041223en.html#en41280  +
Unit
2  +
Retrieved from "https://kanterella.com/Special:Browse/:ENS-5F41280"