Browse wiki
Jump to navigation
Jump to search
100 +
An automatic initiation of Emergency Diese … An automatic initiation of Emergency Diesel Generators was received due to a loss of one of two off-site power sources.</br>On February 16, 2014 at 1216 (EST), Nine Mile Point Unit 2 experienced an automatic initiation of the Division 1 and 3 Emergency Diesel Generators (EDGs) due to a loss of Line 5. Line 5 is one of the two 115KV offsite power sources.</br>Line 5 was lost due to an offsite event that is currently being evaluated by the grid operator.</br>During the electrical transient, Nine Mile Point Unit 2 also experienced a feedwater level control lockup, requiring manual control. No Emergency Core Cooling Systems actuated, and feedwater level control was returned to automatic. Nine Mile Point Unit 2 remained at 100% power during the loss of Line 5, one of the offsite power sources.</br>The NRC resident has been notified.</br>The licensee also notified the State of New York.</br>Unit 2 is currently in a 24-hour Technical Specification Limiting Condition of Operation (TS LCO) Action Statement 3.8.1.A3. Once Division III is realigned to the "B" side Line 6 offsite power, Unit 2 will be in a 72-hour LCO. Both EDGs are currently running. There was no effect on Unit 1.</br>* * * UPDATE PROVIDED BY MARK GREER TO JEFF ROTTON AT 1727 EST ON 2/17/2014 * * *</br>In addition to the initiation of Division 1 and 3 Emergency Diesel Generators, Service Water Radiation Monitor 2SWP*RE146A and Radwaste/Reactor Building Vent Gaseous Effluent Monitoring Systems were also lost. Compensatory actions were established as required by station procedures and the Offsite Dose Calculation Manual. The loss of these instruments is reportable as a major loss of Emergency Assessment Capability per 10CFR50.72(b)(3)(xiii). The Service Water Radiation Monitor 2SWP*RE146A was restored to service on February 16, 2014 at 1450 EST. The Radwaste/Reactor Building Vent Gaseous Effluent Monitoring Systems were restored to service on February 17, 2014 at 0240. It is recognized that this notification is not within eight hours of the event. </br>Line 5 is restored to OPERABLE February 17, 2014 at 1628.</br>The NRC Resident Inspector has been informed of this additional reportable condition (and the update on the lost off-site power source). The condition has been entered into the corrective action program.</br>The licensee also notified the State of New York Public Service Commission. The licensee exited the 72-hour LCO for the lost off-site power at 1628 on February 17, 2014.</br>Notified R1DO(Krohn), NRREO (Monninger) and ILTAB (Whitney).n), NRREO (Monninger) and ILTAB (Whitney).
17:16:00, 16 February 2014 +
49,832 +
18:21:00, 16 February 2014 +
17:16:00, 16 February 2014 +
An automatic initiation of Emergency Diese … An automatic initiation of Emergency Diesel Generators was received due to a loss of one of two off-site power sources.</br>On February 16, 2014 at 1216 (EST), Nine Mile Point Unit 2 experienced an automatic initiation of the Division 1 and 3 Emergency Diesel Generators (EDGs) due to a loss of Line 5. Line 5 is one of the two 115KV offsite power sources.</br>Line 5 was lost due to an offsite event that is currently being evaluated by the grid operator.</br>During the electrical transient, Nine Mile Point Unit 2 also experienced a feedwater level control lockup, requiring manual control. No Emergency Core Cooling Systems actuated, and feedwater level control was returned to automatic. Nine Mile Point Unit 2 remained at 100% power during the loss of Line 5, one of the offsite power sources.</br>The NRC resident has been notified.</br>The licensee also notified the State of New York.</br>Unit 2 is currently in a 24-hour Technical Specification Limiting Condition of Operation (TS LCO) Action Statement 3.8.1.A3. Once Division III is realigned to the "B" side Line 6 offsite power, Unit 2 will be in a 72-hour LCO. Both EDGs are currently running. There was no effect on Unit 1.</br>* * * UPDATE PROVIDED BY MARK GREER TO JEFF ROTTON AT 1727 EST ON 2/17/2014 * * *</br>In addition to the initiation of Division 1 and 3 Emergency Diesel Generators, Service Water Radiation Monitor 2SWP*RE146A and Radwaste/Reactor Building Vent Gaseous Effluent Monitoring Systems were also lost. Compensatory actions were established as required by station procedures and the Offsite Dose Calculation Manual. The loss of these instruments is reportable as a major loss of Emergency Assessment Capability per 10CFR50.72(b)(3)(xiii). The Service Water Radiation Monitor 2SWP*RE146A was restored to service on February 16, 2014 at 1450 EST. The Radwaste/Reactor Building Vent Gaseous Effluent Monitoring Systems were restored to service on February 17, 2014 at 0240. It is recognized that this notification is not within eight hours of the event. </br>Line 5 is restored to OPERABLE February 17, 2014 at 1628.</br>The NRC Resident Inspector has been informed of this additional reportable condition (and the update on the lost off-site power source). The condition has been entered into the corrective action program.</br>The licensee also notified the State of New York Public Service Commission. The licensee exited the 72-hour LCO for the lost off-site power at 1628 on February 17, 2014.</br>Notified R1DO(Krohn), NRREO (Monninger) and ILTAB (Whitney).n), NRREO (Monninger) and ILTAB (Whitney).
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>.
100 +
00:00:00, 17 February 2014 +
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>.
05:32:32, 24 February 2020 +
18:21:00, 16 February 2014 +
true +
false +
0.045 d (1.08 hours, 0.00643 weeks, 0.00148 months) +
17:16:00, 16 February 2014 +
Unit 2 Experienced a Partial Loss of Offsite Power with Autostart of Division I and III Edgs +
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.