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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Heydon, R.G. Rungis, J. Sierota, A. |
| Copyright Year | 1994 |
| Description | Author affiliation: Div. of Appl. Phys., CSIRO, Lindfield, NSW, Australia (Heydon, R.G.; Rungis, J.; Sierota, A.) |
| Abstract | A method for the measurement of the electrostatic charging tendency (ECT) of transformer oils using a sintered metal filter as the charge inducer has been developed. The apparatus is a modification of the previously described recirculating charge tester and gives the charge density in /spl mu/C/m/sup 3/ induced in the oil after passage at 100 ml/min through a 60 /spl mu/m sintered metal filter. The new method uses fresh transformer oil as a reference, switched to flow through the filter before and after the introduction of each test-oil. The signal from the test-oil appears as a pulse on the background of the low level produced by the reference oil. Another significant change is that the test oils are taken directly from their sample bottles, thus ensuring rapid change-over time between samples. This feature has been adopted in naming the apparatus the rapid charge tester (RCT). The RCT was used to compare new and service-aged oils from large generator and transmission transformers on the NSW power system (Australia). The apparatus is described and the range of ECT values measured is presented with some discussion of their significance. |
| Starting Page | 713 |
| Ending Page | 716 |
| File Size | 263510 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780313070 |
| DOI | 10.1109/ICPADM.1994.414110 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1994-07-03 |
| Publisher Place | Australia |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Electrical capacitance tomography Testing Oil insulation Petroleum Lubricating oils Filters Current measurement Electrostatic measurements Charge measurement Pulse transformers |
| Content Type | Text |
| Resource Type | Article |
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