전기적 접속/접촉부 열화 평가를 위한 수명 온도상승 모델

Lifetime-Temperature Rise Model for the Evaluation of Degradation in Electric Connections/Contacts

  • 발행 : 2002.02.01

초록

In this paper, 'lifetime-temperature rise model' based on the 'lifetime-resistance model' is theoretically Proposed, in order to find out the evaluation method of degradation and the residual lifetime by use of infrared image camera for electric connections/contacts. Two assumptions have been builded up for the 'lifetime-temperature rise model': one is associated with the linear relationship between the temperature ism ΔK and contact resistance, and the other the functional relationship between the temperature of electric connections/contacts and the operating time presenting in the 'lifetime-resistance model'. To prove the proposed model, experiments have been performed for various electric connections/contacts. From the experimental results, measured values were quite similar to the calculated values, which proved the above-mentioned two assumptions. Therefore, by use of 'lifetime-temperature rise model', it is possible to estimate the trend of degradation and the residual lifetime for electric connections/contacts through the temperature measurements .

키워드

참고문헌

  1. M. Sun, M.G. Pecht, M.A.E.Natishan, R.I.Martens, 'Lifetime resistance model of bare metal electrical contacts', IEEE Trans. on Components, Packaging and Manufacturing Technology, Part B:Advanced Pakaging, Vol 22, No. 1, pp.60-67, 1999 https://doi.org/10.1109/6040.746544
  2. B.W.Callen, B.Johnson, P.King, R.S.Timsit, W.H.Abbott, 'Environmental Degradation of Utility Power Connections in a Harsh Environment', IEEE Proc. 45th Holm Conf. on Electrical Contacts, pp.63-76, Pittsburgh, Pennsylvania, USA, Oct., 1999 https://doi.org/10.1109/HOLM.1999.795929
  3. IEC 60943, Guidance concerning the permissible temperature rise for parts of electrical [1] IEC 60943, Guidance concerning the permissible temperature rise for parts of electrical equipment in particular for terminals, 2nd Ed. 1998-01
  4. IEC 694, Common specifications for high-voltage switchgear and controlgear standards, 2nd Ed. 1996-05
  5. IEC 1545, Connecting devices- Devices for the connection of aluminium conductors in clamping units of any material and copper conductors in aluminium bodied clamping units, 1st Ed. 1996-01