Analysis on lead-acid battery bank for nuclear power plants in Korea

Lead-acid batteries are used for DC power system in nuclear power plants. Standards of periodic surveillance and determining battery capacity for the batteries in the nuclear power plant are summarized. This paper is investigated for environment service condition, specification, advantages and disadvantages of Class 1E battery bank. Class 1E batteries of nuclear power plants in Korea are summarized in terms of specification, such as capacity, discharge rate, bank configuration, discharge end voltage, etc. This paper summarizes standards, and performance test results of the battery in the nuclear power plant. Also this paper analyses performance test results during 12 years and compared performance degradation in the battery bank.