United States Nuclear Regulatory Commission - Protecting People and the Environment


LICENSEE: ILLINOIS POWER CO.                 

SITE: CLINTON 1                             EN NUMBER:31864

DOCKET: 05000461                         EVENT DATE: 01-07-97

RX TYPE: BWR                             EVENT TIME: 00:00

VENDORS: GE-6                           NOTIFY DATE: 02-27-97

EMERGENCY CLASS: N/A  REGION: 3 STATE: IL      TIME: 17:10

OPS OFFICER: RUDY KARSCH              

10 CFR SECTION: CDEG  21.21(c)(3)(i)      DEFECTS/NONCOMPLIANCE

UNIT  SCRAM   RX   INIT  INITIAL MODE     CURR   CURRENT MODE

      CODE   CRIT  PWR                    PWR

 1    N       N      0   REFUELING          0   REFUELING      



A TRANSFORMER USED TO PROVIDE POWER TO A 1E 120 VOLT DISTRIBUTION

PANEL IS UNSTABLE IF IT IS LOADED WITH LESS THAN 2 AMPS.  THIS IS

CONTRARY TO THE REQUIREMENTS OF THE PURCHASE SPEC.  THE          

TRANSFORMER (MODEL NUMBER P3C015C6/EAN GUARDIAN POWER            

CONDITIONER) IS MANUFACTURED BY PHOENIX POWER SYSTEMS.  THE      

TRANSFORMER TRIPPED OFF WITH THE ADDITION OF A STEP LOAD FROM A  

LOW OR NO LOAD CONDITION.  THIS FAILURE COULD RESULT IN THE LOSS 

OF POWER TO SAFETY-RELATED LOADS.                                



Page Last Reviewed/Updated Thursday, March 29, 2012