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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Kamath, B.R. Sundararajan, J. |
| Copyright Year | 2009 |
| Description | Author affiliation: Center for Collaborative and Advanced Research, Central Power Research Institute, Bangalore-560080, INDIA (Sundararajan, J.) || Department of Electrical & Electronics Engineering, Sri Siddhartha Institute of Technology, Maralur, Tumkur-572105, INDIA (Kamath, B.R.) |
| Abstract | The use of gas mixtures as replacement to SF gas is getting wider acceptance because of environmental issues. Hence, serious efforts are being made to reduce the use of SF gas in high voltage application, wherever it is possible. In this direction, use of SF gas mixtures has been attempted in GITL (Gas insulated Transmission Line) and few other cases. Invariably, in these cases, a small percentage of SF gas is used in combination with nitrogen gas and depending upon the requirements of insulation, either the pressure of the gas mixture has to be increased or the percentage of SF gas has to be enhanced to meet the specified target of Electric strength. However, irrespective of this, the gas mixture will be subjected to the problems that are encountered in case of pure SF gas. One such serious problem is related to the presence of conducting particles, which may be either fixed or moving in the gas duct. Since the particle size and location can vary, some of the routine dielectric tests may not be sensitive to detect very small particles. Further, detecting a particle in N environment may be more difficult than in SF gas because of the lower sensitivity of the gas to particles and the higher operating stresses that exist in SF insulated systems. Hence detection of metallic particles and their location is very important from the stand point of safe operation of an insulation system consisting of SF gas mixture. |
| Starting Page | 497 |
| Ending Page | 500 |
| File Size | 7190449 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424443673 |
| DOI | 10.1109/ICPADM.2009.5252383 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-07-19 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Partial discharges Sulfur hexafluoride Gas insulation Voltage Dielectrics and electrical insulation Gas insulated transmission lines Gases Conducting materials Nitrogen Pollution measurement PD Statistical parameters Gas Insulated transmission Line (GITL) Sulphur Hexa Fluoride Metallic Particles Partial Discharge (PD) |
| Content Type | Text |
| Resource Type | Article |
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