Results 31 to 40 of about 3,542 (57)

Integrated Systems for the Continuous Monitoring of the Technical Condition of Transformer Units

2020 21st International Symposium on Electrical Apparatus & Technologies (SIELA), 2020
The monitoring of the condition and the diagnostic of transformer units is a constant endeavor, continuously adapted to meet the demands of transport operators.
D. Sacerdoțianu, Florica Lăzărescu, I. Hurezeanu, M. Nitu, A. Aciu, M. Nicola, C. Nicola, F. Roman   +7 more
semanticscholar   +1 more source

A New Approach Toward Assessing Transformer Insulating Paper Condition via Online Optical Detection of 2-FAL

International Conference on Development and Learning
A feasibility check of a novel optical chemical sensor for the detection of 2-Furaldehyde (2-FAL) in an insulating liquid under flow is reported. The device consists of a capturing chip made in a plastic optical fiber (POF), which houses a robust, cheap ...
L. De Maria, F. Arcadio, D. Bartalesi, Carlo Roggero, Diego Chialvi, Vincenzo Gazzillo, N. Cennamo   +6 more
semanticscholar   +1 more source

An Optical Sensor for Selective Detection of 2-Furaldehyde in Transformers Oil Under Flow

Sensors Applications Symposium
In this work an investigation on the behavior of an optical sensor for the detection of 2-Furaldehyde (2-F AL) in a mineral oil under flow is reported, to pave the way toward a next on-line application of the sensor in oil insulated transformers.
L. De Maria, F. Arcadio, D. Bartalesi, Vincenzo Gazzillo, Carlo Roggero, Diego Chialvi, N. Cennamo, Luigi Zeni, M. Pesavento   +8 more
semanticscholar   +1 more source

A Comb-Type Capacitive 2-FAL Sensor for Transformer Oil With Improved Sensitivity

IEEE Transactions on Instrumentation and Measurement, 2020
A molecularly imprinted polymer (MIP)-based 2-furfuraldehyde (2-FAL, C5H4O2) capacitive sensor with improved sensitivity has been presented. The electrode is shaped into a novel comb structure to increase the fringe field capacitance which is responsible
M. Nezami, S. A. Wani, S. A. Khan, N. Khera, Shiraz Sohail   +4 more
semanticscholar   +1 more source

A Capacitive Sensor for Detecting Insulation Degradation by Sensing 2-FAL in Transformer Oil

IEEE transactions on dielectrics and electrical insulation, 2020
A capacitive sensor for assessing early degradation of transformer insulation by detecting 2-furfuraldehyde (2-FAL) at the sub-ppm level in transformer oil is presented in this paper.
S. A. Wani, M. Nezami, S. A. Khan, Shiraz Sohail   +3 more
semanticscholar   +1 more source

Hybrid Remaining Life Assessment of 150/20 kV Power Transformers: Integrating Statistical, Degradation, and Diagnostic Analyses with Monte Carlo Simulation

2025 5th International Conference on High Voltage Engineering and Power Systems (ICHVEPS)
Power transformers are critical assets whose unexpected failures result in outages and increased operational costs. Within Indonesia’s Java-Bali network—operated by Perusahaan Listrik Negara (PLN), the State Electricity Company of Indonesia-current ...
Putri Komala Dewi, Suwarno, Shaga Shaulagara   +2 more
semanticscholar   +1 more source

Arduino-based optical fiber chemical sensors for furfural detection

Sensors Applications Symposium
This work aims to demonstrate the capability of a low-cost experimental setup to monitor surface plasmon resonance (SPR) chemical sensors based on plastic optical fibers (POFs) and molecularly imprinted polymers (MIPs) in order to make ON/OFF sensor ...
F. Arcadio, Ines Tavoletta, Luigi Zeni, Raffaele Fusco, Dalila Cicatiello, Chiara Marzano, Rosalba Pitruzzella, L. P. Renzullo, G. Alberti, Federica Passeggio, Mimimorena Seggio, N. Cennamo   +11 more
semanticscholar   +1 more source

The Investigation on Assessing the Aging State of Transformer Insulation Paper Based on Multicharacteristic Comprehensive Assessment Method

IEEE transactions on dielectrics and electrical insulation
The current methods for assessing the aging state of insulation paper are based on single characteristic quantity [such as carbon oxides, 2-furaldehyde (2-FAL), and methanol (MeOH)], whereas each of these quantities has their defects and causes the ...
Song Cheng, Yudong Wang, Liang Zhang, Wei Sun, Qingguo Chen   +4 more
semanticscholar   +1 more source

5-Hydroxymethyl-2-furaldehyde induces developmental toxicology and decreases bone mineralization in zebrafish larvae.

Comparative biochemistry and physiology. Toxicology & pharmacology : CBP, 2021
In this study, we aimed to assess the developmental toxicity and effects of 5-HMF in zebrafish as a model organism for toxicology studies. To this end, we treated zebrafish embryos with 1-100 μg/mL 5-HMF and observed bone staining, gene expression, and ...
Yu Jiang, Zhao Zhong, Mingyong Wang, Xian Zhang   +3 more
semanticscholar   +1 more source

An MIP-Based Novel Capacitive Sensor to Detect 2-FAL Concentration in Transformer Oil

IEEE Sensors Journal, 2018
A novel capacitive sensor, which can detect 2-Furfuraldehyde (2-FAL, C5H4O2, in ppm order) in transformer oil, is developed. No such sensor is reported earlier in the literature. The 2-FAL is released in transformer oil with the ageing of the transformer
M. Nezami, S. A. Wani, S. A. Khan, N. Khera, Shiraz Sohail   +4 more
semanticscholar   +1 more source