ArticlePloS one2026
Insulation failure mapping on power transformer bushing using FRA and electrostatic simulation.
Article in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The power transformer bushing is a critical insulation component and a frequent contributor to transformer failures. This paper presents combined electrical and Multiphysics approaches for mapping failure mechanisms in Resin-Impregnated Paper (RIP) transformer bushings using frequency response analysis (FRA) and electrostatic analysis. An 11 kV/0.433 kV, 500 kVA power transformer bushing is selected as a case study and modeled using a MATLAB-based equivalent circuit to simulate its FRA characteristics. Variations in bushing circuit capacitance are introduced to represent insulation degradation, surface pollution, and insulator damage, and the corresponding failure modes are mapped through their distinctive FRA signatures. To provide physical insight into these failure mechanisms, a detailed model is developed in COMSOL Multiphysics, where degradation, pollution, and destructive damage are analyzed using electric field and electric potential distributions. The results from the FRA simulation and electrical Multiphysics in this paper provide a framework for understanding the behavior of transformer bushing failures and enable early fault detection. This also improves the transformer bushing maintenance and condition monitoring.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.