High-pressure dielectric-strength tests on PPP (PPLP) insulation. Final report. [Paper-polypropylene film-paper]
The objectives of this project were to establish the effects of fluid pressure on the impulse and ac breakdown strengths of PPP (PPLP) (paper-polypropylene film-paper) insulation. Two thicknesses of PPP (PPLP), which was developed jointly by Sumitomo Electric Industries, Ltd. and Tomoegawa Paper Co., Ltd. and produced by the latter company, were tested with dodecylebenzene (DDB) of the alkylbenzene family as dielectric fluid. Appropriate flat/model cells as employed for previous breakdown tests on paper-oil insulation were used, suitable for test pressures up to 20 kg/cm/sup 2/ abs. (2.0 MN/m/sup 2/ or 284 psi). Impulse and ac breakdown tests were performed at a series of applied pressures, at room temperature and 90/sup 0/C. The results were analyzed and are presented in comparison with previously published data on paper-oil cable insulation.
- Research Organization:
- Sumitomo Electric Industries Ltd., Osaka (Japan)
- OSTI ID:
- 5925468
- Report Number(s):
- EPRI-EL-3131; ON: DE83902191
- Country of Publication:
- United States
- Language:
- English
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