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access icon free Electro-thermal breakdown measurement of 500 kV cross-linked polyethylene submarine cable insulation material and its lifetime model analysis

© The Institution of Engineering and Technology
Received 23/01/2020, Accepted 05/11/2020, Revised 13/06/2020, Published 08/01/2021

The first 500 kV AC cross-linked polyethylene (XLPE) cable in the world has been installed in China in 2019. The insulation performance of insulation material under the electro-thermal stress is the basis for its service life. At here, the AC breakdown voltage values and the breakdown time of the 500 kV AC XLPE submarine cable insulation material under the electro-thermal step stress was analyzed. The lifetime prediction accuracy of a new proposed model was compared to the classic FALLOU, SIMONI/RAMU and CRINE lifetime model. Results show that the AC breakdown strength and lifetime of the XLPE samples increase slowly at low temperatures (40–65°C) and decrease rapidly at high temperatures (65–85°C). The lifetime prediction error of the classic FALLOU, SIMONI/RAMU and CRINE models present that their fit goodness cannot meet the accuracy requirement. The new lifetime model using stepwise regression method could optimize the combination of variables, which considers the coupling effect of electrical and thermal stress. The evaluation error of the new proposed model is better than the FALLOU, SIMONI/RAMU and CRINE model, which is suitable for analyzing the lifetime of the AC 500 kV XLPE submarine cable insulation material.

Inspec keywords: electric breakdown; error analysis; XLPE insulation; thermal stresses; regression analysis; submarine cables; power transmission lines; power cable insulation

Other keywords: China; SIMONI-RAMU; AC breakdown strength; coupling effect; Zhoushan; electro-thermal breakdown measurement; temperature 55.0 degC to 65.0 degC; electro-thermal stress; electrical stress; AC breakdown voltage values; lifetime prediction error analyses; lifetime prediction accuracy; voltage 500.0 kV; stepwise regression method; lifetime model analysis; CRINE lifetime model; temperature 65.0 degC to 85.0 degC; cross-linked polyethylene submarine cable insulation material; polyethylene cable; electro-thermal step stress; AC XLPE submarine cable insulation material

Subjects: Power cables; Organic insulation; Error analysis in numerical methods; Regression analysis; Dielectric breakdown and discharges

References

    1. 1)
      • 12. Zhang, Z., Assala, P.D.S., Wu, L.: ‘Residual life assessment of 110 kV XLPE cable’, Electr. Power Syst. Res., 2018, 163, pp. 572–580.
    2. 2)
      • 7. He, D., Gu, J., Wang, W., et al: ‘Research on mechanical and dielectric properties of XLPE cable under accelerated electrical-thermal aging: accelerated electrical-thermal aging characteristics of XLPE cable’, Polym. Adv. Technol., 2017, 28, (8), pp. 1020–1029.
    3. 3)
      • 20. Bessissa, L., Boukezzi, L., Mahi, D.: ‘Lifetime estimation and diagnosis of XLPE used in HV insulation cables under thermal ageing: arithmetic sequences optimised by genetic algorithms approach’, IET Gener. Transm. Distrib., 2017, 11, (10), pp. 2429–2437.
    4. 4)
      • 6. Montanari, G.C., Cacciari, M.: ‘On the electrical endurance characterization of insulating materials by constant and progressive stress test’, IEEE Trans. Electr. Insul., 1992, 5, (27), pp. 1000–1008.
    5. 5)
      • 2. Shahsavarian, T., Shahrtash, S.M.: ‘Modeling of aged cavities for partial discharge in power cable insulation’, IET Sci. Meas. Technol., 2015, 9, (6), pp. 661–670.
    6. 6)
      • 10. Jensen, F.: ‘Activation energies and the Arrhenius equation’, Qual. Reliab. Eng., 2010, 1, (1), pp. 13–17.
    7. 7)
      • 21. Bian, H.R., Yang, L.J., Ma, Z.P.: ‘Method of selecting step stress test parameters for XLPE insulation DC voltage endurance coefficient’, IEEE Trans. Dielectr. Electr. Insul., 2019, 26, (3), pp. 746–753.
    8. 8)
      • 13. Liu, Z. Q., Hao, J., Dai, X. Z., et al: ‘Lifetime prediction based on accelerating thermal/electro-thermal aging test and electric field simulation of a new AC 500 kV submarine cable’. 9th Int. Conf. on Insulated Power Cables, Versailles France, 2019, pp. 1–5.
    9. 9)
      • 9. Miller, R., Nelson, W.: ‘Optimum simple step-stress plans for accelerated life testing’, IEEE Trans. Reliab., 1983, 32, (1), pp. 59–68.
    10. 10)
      • 19. Su, Y., Liu, Y., Zhong, L.: ‘Evaluation of voltage endurance characteristics for new and aged XLPE cable insulation by electrical treeing test’, IEEE Trans. Dielectr. Electr. Insul., 2019, 1, (26), pp. 72–80.
    11. 11)
      • 4. Li, Y., Takada, T.: ‘Experimental observation of charge transport and injection in XLPE at polarity reversal’, J. Appl. Phys., 1992, 4, (25), p. 704.
    12. 12)
      • 5. Thomas, R.: ‘Life prediction for cable insulation material based on Weibull accelerated testing without failures’, IEEE Trans. Reliab., 1985, 20, (1), pp. 79–82.
    13. 13)
      • 14. Montanari, G.C., Cacciari, M.: ‘A probabilistic life model for insulating materials showing electrical thresholds’, IEEE Trans. Electr. Insul., 1989, 24, (1), pp. 127–134.
    14. 14)
      • 11. Bahder, G., Sosnowski, M., Katz, C., et al: ‘Electrical breakdown characteristics and testing of high voltage XLPE and EPR insulated cables’, IEEE Power Eng. Rev., 1982, 7, (3), pp. 41–42.
    15. 15)
      • 15. Fallou, B.C., Morel, J.F.: ‘First approach on multiple stress accelerated life testing of electrical insulation’. NRC Conf. on Electrical Insulation and Dielectric Phenomena, Pocono Pa, October 1979, pp. 621–628.
    16. 16)
      • 8. Nelson, W.: ‘Accelerated life testing: step-stress models and data analyses’, IEEE Trans. Reliab., 1980, 29, (2), pp. 103–109.
    17. 17)
      • 22. Coppard, R.W., Bowman, J., Dissado, L.A., et al: ‘The effect of aluminium inclusions on the dielectric breakdown of polyethylene’, J. Phys. D Appl. Phys., 1990, 23, (12), pp. 1554–1561.
    18. 18)
      • 1. Xie, Y., Zhao, Y., Liu, G., et al: ‘Annealing effects on XLPE insulation of retired high-voltage cable’, IEEE Access, 2019, 7, (1), pp. 104344–104353.
    19. 19)
      • 17. Simoni, L.: ‘Application of A new geometrical approach to determination of combined stress endurance of insulating materials’, IEEE Trans. Electr. Insul., 1984, 3, (23), pp. 489–492.
    20. 20)
      • 3. Joseph, J., Mohan, S., Krishnan, S. T.: ‘Numerical modelling, simulation and experimental validation of partial discharge in cross-linked polyethylene cables’, IET Sci. Meas. Technol., 2019, 13, (3), pp. 309–317.
    21. 21)
      • 16. Crine, J. P., Parpal, J. L., Lessad, G.: ‘A model of aging of dielectric extruded cables’. 3rd Int. Conf. on Conduction and Breakdown in Solid Dielectrics, Varennes Canada, 1989, pp. 347–351.
    22. 22)
      • 18. Ramu, T.S.: ‘On the estimation of power apparatus insulation under combined electrical and thermal stress’, IEEE Trans. Electr. Insul., 1985, 20, pp. 70–78.
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