ArticleSensors (Basel, Switzerland)2019
Research and Experiments on an External Miniaturized VFTO Measurement System.
Article in Sensors (Basel, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Pothole detection and International Roughness Index (IRI) calculation using ATVs for road monitoring.Scientific reports · 2024Article
- Self-Calibration Sensor for Contactless Voltage Measurement Based on Dynamic Capacitance.Sensors (Basel, Switzerland) · 2023Article
- Development and Experimental Research of VFTO Measuring Sensor.Sensors (Basel, Switzerland) · 2022Article
- Contactless AC/DC Wide-Bandwidth Current Sensor Based on Composite Measurement Principle.Sensors (Basel, Switzerland) · 2022Article
- Research on On-Line Detection Method of Transformer Winding Deformation Based on VFTO.Sensors (Basel, Switzerland) · 2021Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Disconnect switch and circuit breakers operations in gas insulated switchgear (GIS) systems may produce very fast transient overvoltage (VFTO). Detecting VFTO is the first step for researchers to reduce the damage to other equipment of the substation caused by VFTO. Most of the existing sensors used for VFTO are generally bulky, complex to install, and require modification of the GIS structure. In this paper, a miniaturized measurement system that uses capacitive voltage divider and differentiating-integrating circuit is proposed. A special sensor structure and optimized differentiating-integrating circuit components arrangement were designed to increase the bandwidth of the measurement system. The frequency-domain, time-domain and voltage divide calibration experiment was performed, and a comparison experiment with an internal VFTO sensor was conducted. The measurement system was applied in the 500 kV GIS substation, and the VFTO measurement under specific conditions was carried out. The measured time domain and frequency domain waveforms conformed to the definition of standard VFTO according to IEC 60,071. It was found that the proposed measurement system meets VFTO measurement requirements and can be applied to actual VFTO measurements.
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Registered trials
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