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JSIR Vol.64 [2005] >
JSIR Vol.64(04) [April 2005] >
| Title: | Assessment of transformer insulation system by evaluating partial discharge and dissolved gas analysis |
| Authors: | Verma, P
Roy, M
Verma, A
Bhanot, Vimal |
| Keywords: | Partial discharge
Scanning electron microscopy
Thermal stress
Electrical stress
Transformer paper
DGA |
| Issue Date: | Apr-2005 |
| Publisher: | CSIR |
| Abstract: | Partial Discharge (PD) measurement is carried out on the accelerated aged oil-paper samples in specially designed test cell. The accelerated thermal stress is selected from the temperature range 120 to 160°°C and electric stress 1.0 to 2.5 per unit (pu, 1 pu = 1.0 kV). The test cell is taken out after 15, 30, 45 and 60 d to assess the extent of degradation of transformer insulation by performing PD test. The PD results are correlated with dissolved gas analysis and microstructure analysis of aged paper samples. |
| Page(s): | 262-267 |
| ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
| Source: | JSIR Vol.64(04) [April 2005]
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