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A Study on the Design and Fabrication of High Performance Large Current Mica Capacitor for Energy Storage Facility Applications

에너지 저장설비 응용을 위한 고 성능 대 전류 마이카 커패시터 설계 및 제작에 관한 연구

  • 정명희 (안양대 공대 디지털미디어학과) ;
  • 윤의중 (호서대 공대 시스템제어공학과)
  • Received : 2011.08.04
  • Accepted : 2011.09.01
  • Published : 2011.10.01

Abstract

In this study, large-current (75 - 400 A), high-voltage (500 - 1000 $V_{rms}$), reliable capacitors with capacitances (C) of 100 - 1000 nF were developed for energy storage facility applications. Mica was used as the dielectric of the capacitors. In order to form a parallel stack of a capacitor element, 50 ${\mu}m$ thick mica sheets with a size of $30mm{\times}35mm$ were used with lead foils for the plate lead type of mica capacitors (HCM-L), while the same sizes of mica sheets coated by Ag paste were employed with lead foils for the parallel plate terminal type (HCM-C). The developed capacitors exhibited well behaviored device characteristics which meet the requirements of the capacitors. The developed capacitors also showed excellent characteristics for thermal shock test. The stability characteristics of developed capacitors for large current stress was superior to those measured for the capacitors prepared recently by CDETm.

Acknowledgement

Supported by : 호서대학교

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