Calibration of UHV Impulse Voltage Divider in China
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Electrical Insulation Magazine"
DOI: 10.1109/mei.2023.10101704
Abstract: This article proposes the necessity of reliable calibration of the high voltage impulse value and the difficulty for accurate metrology work. It outlines the problems for common linearity test methods for impulse voltage dividers and… read more here.
Keywords: uhv impulse; impulse voltage; voltage; calibration uhv ... See more keywords
Partial discharge detection and analysis of needle-plane defect in SF6 under negative oscillating lightning impulse voltage based on UHF method
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Dielectrics and Electrical Insulation"
DOI: 10.1109/tdei.2016.005979
Abstract: Gas insulated switchgear (GIS) is used in power system more and more widely. With the increased voltage level of power system, field impulse voltage withstand test becomes increasingly important. It would be beneficial for a… read more here.
Keywords: voltage; detection; lightning impulse; plane defect ... See more keywords
Breakdown characteristics of transformer oil in a uniform field under oscillating impulse voltage
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Dielectrics and Electrical Insulation"
DOI: 10.1109/tdei.2017.005996
Abstract: The field impulse voltage test plays the most important role to ensure the safe of the power transformer. It is hard to carry out the standard impulse voltage test for the power equipment because the… read more here.
Keywords: voltage; transformer oil; field; oscillating impulse ... See more keywords
Partial discharge characteristics of metallic protrusion in GIS under different lightning impulse voltage waveforms based on UHF method
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Dielectrics and Electrical Insulation"
DOI: 10.1109/tdei.2017.006839
Abstract: The field lightning impulse withstand voltage test is an important step to ensure the safe operation of the gas insulated switchgear (GIS). The oscillating lightning impulse voltage is recommended in field test by IEC standard… read more here.
Keywords: voltage; protrusion; lightning impulse; partial discharge ... See more keywords
Prebreakdown and Breakdown Phenomena in HFO Gas Under Impulse Voltage—Part II: Quasi-Uniform Field
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DOI: 10.1109/tdei.2023.3264191
Abstract: Breakdown phenomena in the Hydrofluoroolefin 1234zeE gas (HFO) are studied under impulse voltage in moderately divergent field, with field enhancement factor $\eta < 10$ . The first breakdown voltage recorded in new HFO with clean… read more here.
Keywords: gas; impulse voltage; voltage; breakdown phenomena ... See more keywords
Resonance at the Front of Lightning Impulse Voltage Waveforms Caused by the Load Capacitor
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2020.3045186
Abstract: During the impulse voltage comparison test, it is important to keep the waveforms smooth for obtaining consistent experiment results, especially for the front time parameter. However, steps or oscillations are often found on the front… read more here.
Keywords: voltage; front lightning; impulse voltage; load capacitor ... See more keywords