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| 1 | 高压直流换流站穿墙套管的局部放电在线测量(英文)显示文摘An online partial discharge(PD) measurement performed on a high voltage direct current(HVDC) wall bushing successfully identified the presence of internal discharges.The wall bushing is a sulfur hexafluoride gas-insulated bushing,rated for 500 kV dc and terminated on a thyristor-controlled HVDC converter bridge.The measurement of PD within the HVDC station environment is particularly challenging due to the high levels of electromagnetic noise caused by thyristor switching events and external air-corona from the neighboring high-voltage equipment.An additional challenge is the''mixed'voltage stress on the bushing insulation,which has both ac and dc high-voltage components.There are also fast transients during the firing of thyristors in the HVDC conversion process that cause added stress to the insulation.As a result,the analysis and interpretation of PD data for HVDC equipment is more complex;PD pulses may occur in response to the ac,dc,or switching transient voltage stresses.In this paper,an online PD measurement strategy for noise filtering and isolation of PD sources within the bushing are discussed.The PD measurement data is plotted on a phase-resolved diagram where the line supply power cord voltage was used as a reference. The phase-resolved diagram appears to suggest that the fast transients,caused during switching,trigger some PD events.Measurements were also performed with the aid of a modern PD measurement instrument having noise separation capabilities.The findings from the online PD measurements are verified with physical evidence,found after the bushing was removed from service,suggested internal PD had occurred inside the bushing. | Nathan D.Jacob William M.McDermid Behzad Kordi | 2011 | 高电压技术2011，37，11： | 8 |
| 2 | Linking diagenesis to se- quence stratigraphy in fluvial and shallow marine sandstones: Evidence from the Camhriane Ordovieian lower sandstone unit in southwestern Sinai, Egypt显示文摘 | Kordi M Turner B Salem A M K | 2011 | Marine and Petroleum Geol- ogy2011，28，8： | 1 |
| 3 | A new lightning return stroke model based on antenna theory显示文摘 | Moini R Kordi B Raft G Z | 2000 | Journal of Geophysi- cal Research2000，105，29： | 1 |
| 4 | Testing of the retinal visual acuity in high myopia with cataracts显示文摘 | Kordi R Pokupec R Juki T | 2013 | Col Antropo12013，37，4： | 1 |
| 5 | Application of the antenna theory model to a tall tower struck by lightning 显示文摘 | Behzad Kordi Rouzbeh Moini WasylJanis- chewskyj | 2013 | Journal of Geophysical Research2013，108，： | 1 |
| 6 | Comparison Between the Effects of Continuous and Intermittent Aerobic Exercise on Weight Loss and Body Fat Percentage in Overweight and Obese Women : A Randomized Controlled Trial 显示文摘 | Alizadeh Z Kordi R Rostami M | 2013 | International journal of preventive medicine2013，4，8： | 1 |
| 7 | Effect ofvarious ratios of carbohydrate-protein supplementationon resistance exercise-induced muscle damage显示文摘 | Samadi A Gaeini A A Kordi M R | 2012 | JSports Med Phys Fitness2012，52，2： | 1 |
| 8 | New experimental study on the DC flashover voltage of polymer insulators:combined effect of surface charges and air humidity显示文摘This research provides conclusions that can partially cover the lack of knowledge related to the effects of ambient atmospheric conditions on DC electric power transportation.Two polymer insulating materials are used for completing this research study.Inside a climate chamber,the relative humidity is controlled and adjusted from 20%to 80%RH.Then,the samples are charged with positive or negative charges by applying±20 kV to the corona-generating ring of needles.The surface potential is measured using an electrostatic voltmeter and is converted into surface charge density later by applying the probe response matrix method.The pre-charged samples are then stressed with high-voltage negative or positive DC values inside the climate chamber over a range of controlled values of the surrounding air humidity until flashover takes place.The space charges,which can drift in the air gap to reach the solid surface,are highly affected by the level of the relative humidity of the surrounding air.Also,increasing humidity results in a reduction of the DC flashover inception voltage and a shorter time to flashover regardless of the voltage polarity.Moreover,the positive or negative flashover inception voltage of both materials increases with pre-deposited negative charges while it decreases with pre-deposited positive charges. | Mohammed Amer Jeff Laninga William McDermid David R.Swatek Behzad Kordi | 2019 | High Voltage2019，4，4： | 1 |
| 9 | Endothelial stimulating angiogenic factor in early facture healing显示文摘 | Kordy NM Weiss JB Bate A | 1996 | Injury1996，27，2： | 1 |
| 10 | The effect of early and late umbilical cord clamping on neonatal hematocrit显示文摘 | Jahazi A Kordi M Mirbehbahani NB | 2008 | J Perinatol2008，28，8： | 1 |
| 11 | SMS in the outpatient treatment of schizophrenia: Feasibility and acceptance显示文摘 | Bachmann S Ruddies C Kordy H | 2008 | European Psychia-try2008，23，4： | 1 |
| 12 | The relation of disorders of the blood acid - base equilibrium to immunologic and neurohumoral changes in patients with eczema 显示文摘 | SHULIPA I V TURKEVICH LUN KORDIS B D | 1989 | Vrach Delo1989，12，： | 1 |
| 13 | Diversity and evolution of the thyroglobulin type-1 domain superfamily 显示文摘 | Novinec M Kordis D Turk V | 2006 | Molecular Biology and Evolution2006，23，4： | 1 |
| 14 | Characteristics and compo- sition of watermelon seed oil and solvent extraction param- eters effects 显示文摘 | BABOLI Z M KORDI A A S | 2010 | J Am Oil Chem Soc2010，87，6： | 1 |
| 15 | Disropti on of hippocampal connectivity in children and addescents with scmzophrenia- a voxed- based diffusion tensor imaging study显示文摘 | White T kordi AT leheriCy S | 2007 | Schizophr Res2007，90，13： | 1 |
| 16 | Horizontal transfer of non-LTR retrotransposons in vertebrates显示文摘 | KORDIS D GUBENSEK F | 1999 | Genetica1999，107，1： | 1 |
| 17 | Testing of the retinal visual acuity in high myopia with cataracts显示文摘 | Kordi R Pokupec R Kalauz M | 2013 | Coll Antropol2013，371，： | 1 |
| 18 | Unusual horizontal transfer of a long interspersed nuclear element between distant vertebrate classes显示文摘 | KORDIS D GUBENSEK F | 1998 | Proceedings of the National Academy of Sciences1998，95，10： | 1 |
| 19 | The diagnostic accuracy of purple line in prediction of labor progress in Omolbanin hospital,Iran显示文摘 | Kordi M Irani M Tara F | 2014 | Iranian Red Crescent Med J2014，16，： | 1 |
| 20 | A new lightning return stroke model based on antenna theory 显示文摘 | Moini R Kordi B Raif G Z | 2000 | J Geophys Res2000，105，29： | 1 |
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