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Content Provider | IET Digital Library |
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Author | Gao, Yuan Li, Feng Lu, Wu Zhao, Wenbin |
Abstract | An oil–pressboard insulation system has been built to simulate converter transformer turn-to-turn insulation structure. Streaming current in the oil was measured while applying high dc voltage on the insulation at different temperatures. Flow electrification was also researched at low flow velocity of 0.2 m/s and at high flow velocity of 1.2 m/s. The streaming current increases exponentially with temperature when the high dc voltage is not applied on the insulation. However, at the same temperature, the streaming current is much smaller than that with the dc voltage been applied. The streaming current is in an inverted U-shaped development with the increase of temperature, when the insulation withstands the dc voltage. The peak value of the streaming current was observed at a lower temperature when the dc voltage is higher. A mathematic model has been developed to describe the electrification characteristics of insulation under the dc voltage. |
Starting Page | 2893 |
Ending Page | 2896 |
Page Count | 4 |
Volume Number | 2019 |
e-ISSN | 20513305 |
Issue Number | Issue 16, Mar (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/conferences/cn-adc-2018 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8367 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2018-10-29 |
Access Restriction | Open |
Rights License | Creative Commons Attribution-Non Commercial-No Derivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/) |
Subject Keyword | Converter Transformer Turn-to-turn Insulation Structure Simulation Flow Electrification Temperature Effect High Flow Velocity Inverted U-shaped Development Low Flow Velocity Mathematic Model Mathematical Analysis Oil–pressboard Insulation System Organic Insulation Power Converter Power Supplies to Apparatus Power Transformer Insulation Streaming Current Measurement Transformer And Reactors Transformer Oil Velocity 0.2 M/s Velocity 1.2 M/s |
Content Type | Text |
Resource Type | Article |
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