Development of 132 kV Standard Potential Transformer and Stability Test

132 kV 초정밀 전압변성기(PT) 개발 및 안정도 평가

  • Published : 2009.07.14

Abstract

High accurate and stable 132 kV potential transformers (PTs) including 66 kV & 22 kV PT with stability of less than 0.0033 % for 13 month and with ratio error within $\pm$ 0.024 % at full rated voltage have been developed. The PTs are useful as the reference PT of the PT comparator system in the voltage range of 11 kV to 132 kV PT.

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