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Requests NRR assume lead responsibility in assessing generic implications of reactor breaker undervoltage trip device failures on 831002 & 03.Previous failures occurred in Mar & Jul 1982 & Mar 1983.

Accession Number: ML13308A296

Date Released: Sunday, November 8, 2020

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• ML13308A295 - Requests NRR assume lead responsibility in assessing generic implications of reactor breaker undervoltage trip device failures on 831002 & 03.Previous failures occurred in Mar & Jul 1982 & Mar 1983. (2 page(s), 10/7/1983)
• ML13308A297 - RO 83-125:on 831002,during surveillance testing of reactor trip breakers (RTB),RTB 4 operated out of spec & removed from svc.On 831003,RTB 5 removed from svc after failing to open on undervoltage trip.Investigation in progress. (3 page(s), 10/4/1983)