Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A study on the aging characteristics for model III watthour meters

보통전력량계(III 형)의 경년변화 특성연구

  • Kim, Young-Lae (Electric Power & System DEPT. Research Center KEPCO.) ;
  • Hong, Sun-Hak (Electric Power & System DEPT. Research Center KEPCO.) ;
  • Park, Ku-Perm (Electric Power & System DEPT. Research Center KEPCO.) ;
  • Song, Il-Keun (Electric Power & System DEPT. Research Center KEPCO.)
  • 김영래 (한전기술연구원 전력연구실) ;
  • 홍순학 (한전기술연구원 전력연구실) ;
  • 박구범 (한전기술연구원 전력연구실) ;
  • 송일근 (한전기술연구원 전력연구실)
  • Published : 1993.11.26
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Abstract

This study investigated the propriety and the extension of the term of validity about the using watthour meters at present. The subject of study is 1Cent 2W 220V 30(10)A, 1Cent 3W 110V 30(10)A of model III watthour meters. They are the used metes(products in 1984) and the repaired meters(products in 1977) in the end of the period. The investigation is as follows. o Investigation of external appearance o Driving current test o Creeping test o Noise test o Error test o Durability test. Results of the study have been the number of 13.3% exceeded permitting error and the number of 31.3% failed in endurable test of 500 hours. So, the using meters are not suitable to extend the term of validity without the improvement of several characteristics.

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