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Trip reduction during reactor start-ups at Arkansas Nuclear One unit 2 based on human factors

Conference · · Transactions of the American Nuclear Society; (USA)
OSTI ID:6923634
; ;

In 1985, Arkansas Power Light Company (AP L) conducted a review of the increasing trend of reactor trips during plant startup at Arkansas Nuclear One Unit 2 (ANO-2). This review was part of an overall effort to reduce plant trips that reached 15 during 1984. The single most common cause of these plant trips was steam generator level trips during start-up. The primary problem identified involved human factors associated with the manual control of feedwater at low power such that the operator had difficulty in maintaining the steam generator level within the reactor trip setpoints. The plant modifications implemented during 1985 have resulted in the elimination of low-power feedwater-control-related trips, even though the system is still operated manually. This paper presents the results of the human factors evaluation and the subsequent corrective action taken that has been so successful for ANO-2.

OSTI ID:
6923634
Report Number(s):
CONF-890604--
Journal Information:
Transactions of the American Nuclear Society; (USA), Journal Name: Transactions of the American Nuclear Society; (USA) Vol. 59; ISSN TANSA; ISSN 0003-018X
Country of Publication:
United States
Language:
English

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Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
ARKANSAS-2 REACTOR
BOILERS
CALIBRATION
COOLING SYSTEMS
ENERGY SYSTEMS
ENRICHED URANIUM REACTORS
FEEDWATER
HUMAN FACTORS
HYDROGEN COMPOUNDS
LEVEL INDICATORS
MEASURING INSTRUMENTS
MODIFICATIONS
OPERATION
OPTIMIZATION
OXYGEN COMPOUNDS
PERSONNEL
POWER REACTORS
PWR TYPE REACTORS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR INSTRUMENTATION
REACTOR OPERATION
REACTOR OPERATORS
REACTOR SHUTDOWN
REACTOR START-UP
REACTORS
SCRAM
SHUTDOWNS
SPECIFICATIONS
START-UP
STEAM GENERATORS
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
TRAINING
VAPOR GENERATORS
WATER
WATER COOLED REACTORS
WATER MODERATED REACTORS