Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 140, Issue 20, Pages -Publisher
WILEY
DOI: 10.1002/app.53844
Keywords
crosslinked polyethylene; degassing-free; finite element analysis; ultrahigh voltage
Categories
Ask authors/readers for more resources
Polyethylene has limitations in HV/UHV power cables due to its low thermal stability and breakdown strength, despite its excellent electrical insulation. A new organic peroxide, Bi25, has been developed to efficiently trigger the crosslinking of polyethylene (Bi25-XLPE). Bi25-XLPE, with void-free nature, higher crosslinking density, and crystallinity, meets the insulation standard for 500 kV power cables. The breakdown strength (up to 61.66 kV/mm) and stability of Bi25-XLPE are confirmed by a constructed 500 kV power cable model using COMSOL.
Polyethylene has excellent electrical insulation, but its low thermal stability and breakdown strength limit its application in the field of high-voltage (HV) and ultrahigh voltage (UHV) power cables. In this work, we have developed a new organic peroxide, 2,5-dimethyl-2,5-di(tert-butylperoxy) hexane (Bi25), which can efficiently trigger the crosslinking of polyethylene (Bi25-XLPE). Bi25-XLPE does not produce gas byproducts and has a longer scorching time. All performance of Bi25-XLPE sheets fulfill the standard of the 500 kV power cable insulation due to the void-free nature, higher crosslinking density and crystallinity. In addition, one 500 kV power cable model was constructed by COMSOL, which confirmed the breakdown strength (up to 61.66 kV/mm) and stability of Bi25-XLPE.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available