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Internal Partial Discharge And Breakdown Characteristics Of Thin Polypropylene Films
| Content Provider | Indian Institute of Science (IISc) |
|---|---|
| Author | Shobha, R. Nema, R. S. |
| Copyright Year | 1993 |
| Abstract | One of the major causes of failure of polypropylcne(PP) film high voltage capacitors is PD (partial discharges). PD can occur in the cavities or gas pockets formed due to variation in tightness of windings, improper impregnation and swelling of the film due to its interaction with the impregnating fluid. The effect of pressure and radial dimensions are important in small cavities mostly because system impregnation is done at low pressures and the cavity size gets reduced .It is probable that with time the cavity pressure will equilibrate with that of the surrounding ambient medium due to diffusion process. An attempt is made here to study the effect of cavity dimensions such as diameter (0.9 mm to 3.2 mm) and depth (40 $_\mu$m to 200 $_\mu$m) on the various PD characteristics and the related breakdown of thin PP films. |
| File Format | |
| Journal | PeerReviewed |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers |
| Publisher Date | 1993-01-01 |
| Access Restriction | Authorized |
| Subject Keyword | High Voltage Engineering (merged with EE) |
| Content Type | Text |
| Resource Type | Article |
