The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS
Transactions ID Number: 52-343
Full Name: Boonruang Marungsri
Position: Assistant Professor
Age: ON
Sex: Male
Address: Suranaree University of Technology, 111 University Ave. ,Muang, Nakhon Ratchasima,30000
Country: THAILAND
Tel: +66 4422 4400
Tel prefix:
Fax: +66 4422 4601
E-mail address: bmshvee@sut.ac.th
Other E-mails: b_marungsri@msn.com
Title of the Paper: Investigation Life Time Model of 22 kV XLPE Cable for Distribution System Applications in Thailand
Authors as they appear in the Paper: Boonruang Marungsri, Anucha Rawangpai, Nimit Chomnawang
Email addresses of all the authors: bmshvee@sut.ac.th
Number of paper pages: 13
Abstract: Cross-linked polyethylene (XLPE) high voltage cables have been widely used in power transmission and distribution systems. Ageing deterioration of XLPE insulating material can not be avoidable due to its made of polymeric material. This paper mentions to the experimental results on artificial ageing test of 22 kV XLPE cable for distribution system application in Thailand. XLPE insulating material of 22 kV cable was sliced to 60-70 µm in thick and subjected to ac high voltage stress at 23◦C, 60◦C, 75◦C and 90◦C. The specimens were tested under different electrical stress levels varying from 50kV/mm to 130kV/mm. Testing voltage was constantly applied to the specimen until breakdown. Five specimens were tested at each temperature level and each voltage stress level. Breakdown voltage and average time to breakdown were used to evaluate life time of insulating material. Furthermore, the physical model by J. P. Crine for predicts life time of XL!
PE insulating material was adopted as life time model and was determined in order to compare the experimental results. Acceptable life time results were obtained from Crine's model comparing with the experimental result. In addition, Fourier transform infrared spectroscopy (FTIR) for chemical analysis and scanning electron microscope (SEM) for physical analysis were conducted on tested specimens.
Keywords: Artificial accelerated ageing test, XLPE cable, distribution system, insulating material, life time, life time model
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