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Insulation Performance and Electrical Field Sensitivity Properties of HFO-1336mzz(E)/CO 2 : A New Eco-friendly Gas Insulating Medium.
- Source :
- IEEE Transactions on Dielectrics & Electrical Insulation; Dec2021, Vol. 28 Issue 6, p1938-1948, 11p
- Publication Year :
- 2021
-
Abstract
- This paper investigates the AC insulation properties and explores the influence of electric field inhomogeneity on the breakdown voltage of HFO-1336mzz(E)/CO 2 gas mixture. The electrical field sensitivity of HFO-1336mzz(E)/CO 2 and SF 6 is further compared. It is found that the insulation performance of HFO-1336mzz(E)/CO 2 mixture with 25–30% HFO-1336mzz(E) can reach up to 75-85% of SF 6 under the quasi-uniform electric field and there is a favorable positive synergistic effect between HFO-1336mzz(E) and CO 2. The breakdown voltage of HFO-1336mzz(E)/CO 2 gas mixture demonstrates a “hump” effect with gas pressure under the highly non-uniform electric field and its sensitivity to the electric field inhomogeneity is significantly lower than that of SF 6. The insulation performance of HFO-1336mzz(E)/CO 2 with HFO-1336mzz(E) content higher than 20% reaches 0.99–1.05 times that of SF 6 under highly non-uniform electric field. The AC breakdown voltage of HFO-1336mzz(E)/CO 2 gas mixture and SF 6 decreases first and then increases with the electric field inhomogeneity (f), demonstrating a “U-shaped” like curve and finally tends to be stable. The related results of this paper systematically reveal the AC insulation properties of HFO-1336mzz(E)/CO 2 gas mixture and provide an important reference for its engineering application. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10709878
- Volume :
- 28
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Dielectrics & Electrical Insulation
- Publication Type :
- Academic Journal
- Accession number :
- 154801053
- Full Text :
- https://doi.org/10.1109/TDEI.2021.009720