Performance Assessment of FRP Rods of 400 kV Field-Aged Composite Insulators

Halloum, M-R and Subba Reddy, B and Reddy, GN and Francis, F and Shah, MM and Reddy, BKK (2024) Performance Assessment of FRP Rods of 400 kV Field-Aged Composite Insulators. In: 10th IEEE International Conference on Electronics, Computing and Communication Technologies, CONECCT 2024, 12 July 2024 through 14 July 2024, Bangalore.

PDF Per_Ass_of_FRP_Rod_of_400_kV_Fie_Com_Ins.pdf - Published Version Restricted to Registered users only Download (1MB) | Request a copy

Abstract

The satisfactory performance of silicone rubber (SiR) insulators is crucial to ensure safe and stable operation. Several interface failures of 400 kV SiR insulators and insulators with many hot spots have recently been reported from the country's northeastern region. This study investigated the performance of fiber-reinforced plastic (FRP) rods of three 400 kV field-aged insulators, which were in service for about four years. The dye penetration and water diffusion tests are conducted to evaluate the FRP rod interface quality, porosity nature, and water resistance per the IEC 62217 standard. All the samples failed during the tests, indicating the presence of various defects, such as axial holes within the FRP rod and a bad-quality FRP-SiR interface. Further, numerical simulation was conducted using COMSOL Multiphysics to investigate the influence of air voids on the electric field distribution. Various scenarios were assumed, and interesting results about the failure mechanism obtained are presented. © 2024 IEEE.

Item Type:	Conference Paper
Publication:	Proceedings of CONECCT 2024 - 10th IEEE International Conference on Electronics, Computing and Communication Technologies
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to the publishers.
Keywords:	Elastomers; Electric insulators; Fiber reinforced plastics; Fracture mechanics; Ionomers; Surface discharges, Composite insulators; Fiber reinforced plastic rod; Insulator failure; Performance; Performance assessment; Polymeric outdoor insulator; Safe operation; Silicone rubber; Silicone rubber insulators; Stable operation, Silicones
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	29 Oct 2024 12:59
Last Modified:	29 Oct 2024 12:59
URI:	http://eprints.iisc.ac.in/id/eprint/86630

Actions (login required)

View Item