Event Notification Report for March 21, 2020
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/20/2020 - 03/21/2020
EVENT NUMBERS
54596
Power Reactor
Event Number: 54596
Facility: VOGTLE
Region: 2 State: GA
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: CURT RABUN
HQ OPS Officer: OSSY FONT
Region: 2 State: GA
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: CURT RABUN
HQ OPS Officer: OSSY FONT
Notification Date: 03/21/2020
Notification Time: 23:46 [ET]
Event Date: 03/21/2020
Event Time: 16:44 [EDT]
Last Update Date: 03/22/2020
Notification Time: 23:46 [ET]
Event Date: 03/21/2020
Event Time: 16:44 [EDT]
Last Update Date: 03/22/2020
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
10 CFR Section:
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
MARK MILLER (R2DO)
MARK MILLER (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | N | 0 | Refueling | 0 | Refueling |
AUTOMATIC ACTUATION OF THE 1B EMERGENCY DIESEL GENERATOR
"At 1644 EDT with Unit 1 in Mode 6 at 0 percent power, an actuation of the Unit 1 Bravo Train Emergency Diesel Generator system (EDG) occurred during Engineered Safety Feature Actuation System (ESFAS) testing. The reason for the EDG auto-start signal was a loss of voltage on the Bravo train safety related electrical bus due to the EDG output breaker opening. The EDG was already running at the time of the loss of voltage on the bus.
"This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in a valid actuation of the EDG system.
"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."
There was no impact to Unit 2.
"At 1644 EDT with Unit 1 in Mode 6 at 0 percent power, an actuation of the Unit 1 Bravo Train Emergency Diesel Generator system (EDG) occurred during Engineered Safety Feature Actuation System (ESFAS) testing. The reason for the EDG auto-start signal was a loss of voltage on the Bravo train safety related electrical bus due to the EDG output breaker opening. The EDG was already running at the time of the loss of voltage on the bus.
"This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in a valid actuation of the EDG system.
"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."
There was no impact to Unit 2.