Abstract
This study discusses the local production, electrical characteristics and performance in service of porcelain insulators for outdoor low-voltage apparatus. Concern was given to the identification, beneficiation, characterization and utilization of locally available raw materials in Nigeria for the production of electrical porcelain insulators, taking benefits of the availability of these raw materials. The process control presents figures, tables, simulations. The basic raw materials were separately prepared using a 200-µm sieve. The composition of the triaxial constituents was varied to produce samples for testing. Altering the percentage content of silica and the alumina recorded a change in the mechanical strength and the sintering temperature; this was handled by adding fluxes suitable for improving tensile strength without increasing sintering temperature of the paste. Porcelain slab samples of different triaxial composition were formed. Tests on mechanical resistance, porosity and water absorption were carried out. Sample A, with specific percentage composition of 38% feldspar, 18% quartz, 32% kaolin and 12% ball clay, was used to produce porcelain suitable for the 480 V pin insulators. The produced sample possess an electrical dielectric constant of 9.80, a dissipating factor of 0.060, flashover voltage of above 5 kV all at 50 Hz of supply voltage frequency and a mechanical load support of 13.85 kN.
Similar content being viewed by others
References
Oladiji AO, Borode JO, Adewuyi BO, Ohijeagbon IO (2010) Development of porcelain insulators from locally sourced materials. J Res Inf Civ Eng 7(1):48–54
Anih LU (2005) Indigenous manufacture and characterization of electrical porcelain insulator. Niger J Technol 24(1):2–3
Tasic ZD (1993) Improving the microstructural and physical properties of alumina electrical porcelain with additives. J Appl Sci Technol Index Part 2 28:5693–5701
Singer F (1968) Industrial ceramics. Chemical Publishing Co., University of Michigan 1963, pp 95–200, 465–562, 1170–1175
Cardew M (1969) Pioneer pottery. Longman Group Ltd, London, pp 8–55
Alvarez-Estrada D (1948) Technological developments for energy saving by the use of new compositions or additives. Elsevier, Amsterdam, p 111
Lampe W, Höglund T, Nellis C, Renner P, Stearns R (1989) Longterm tests of HVDC insulators under natural pollution conditions at the big eddy test center. IEEE Trans Power Del 4(1):248–259
Fazelian M, Wu CY, Cheng TC, Nour HI, Wang LJ (1989) A study on the profile of HVDC insulators—DC flashover performance. IEEE Trans Electr Insul 24(6):119–125
Parihar VS, Kori AK (2016) Effects of creepage distance on leakage current of 220 kV long rod insulators at different severity level of salt contamination. Int J Res Appl Sci Eng Technol (IJRASET) 4(X):220–222
Jiang X, Yuan J, Shu L, Zhang Z, Hu J, Mao F (2008) Comparison of DC pollution flashover performances of various types of porcelain, glass and composite insulators. IEEE Trans Power Del 23(2):1183–1190
He L (2016) Source strength impact analysis on insulator flashover under contaminated conditions. A Dissertation presented in partial fulfillment of the requirements for the Degree Doctor of Philosophy
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Onodu, C.S., Madueme, T.C. Manufacture of porcelain insulators from locally available materials. Electr Eng 102, 1959–1968 (2020). https://doi.org/10.1007/s00202-020-00998-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00202-020-00998-5