Thermal degrade analysis of solid insulating materials immersed in natural ester oil and mineral oil by DGA

被引：8
|
作者：
Kiran, Shaik Rafi [1 ]
Mariprasath, T. [2 ]
Basha, C. H. Hussaian [2 ]
Murali, M. [2 ]
Reddy, M. Bhaskara [2 ]
机构：
[1] Sri Venkateshwara Engn Coll Autonomous, Tirupati 517502, Andhrapardesh, India
[2] KSRM Coll Engn Autonomous, Kadapa 516005, Andhrapardesh, India
来源：
MATERIALS TODAY-PROCEEDINGS | 2022年 / 52卷
关键词：
Transformer; Mineral oil; Bio degradation; Vegetable oil; Kraft paper; Press board; DISSOLVED-GAS ANALYSIS; PONGAMIA-PINNATA OIL; CELLULOSE INSULATION; SYNTHETIC ESTER; LIQUID; DIELECTRICS;
D O I：
10.1016/j.matpr.2021.09.015
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Globally, natural ester based insulating oils are playing a significant role for insulation design of the transformer. Because of, ester based insulating oil's critical properties are meeting the standard requirement as liquid dielectrics for transformer. For past century, mineral oil is used as an insulating liquid as well as heat transfer agent for transformer. However, it has less biodegradable characteristics, so which causes negative environmental effects on atmosphere. In addition, availability of fossil fuel is very low. Therefore, the manuscript proposes natural ester oil is alternate liquid dielectrics for transformer. However, critical properties of vegetable oil based liquid dielectrics are depends on the fatty acids. Therefore, two types of oil samples are used such as high saturated fatty acid ester oil (SFEO) and unsaturated fatty acid ester (UFEO), respectively. Initially, oil samples critical properties are measured according to the standard. Subsequently, accelerated thermal aging study has been carried out on all the oil samples for evaluating thermal stability of oil samples. Then, combustible gas estimation of oil samples has been carried out by Dissolved Gas Analyzer. Results are shows that, critical properties of SFEO is comparable that of others. In addition, degradation rate of insulating material is low when it immersed in SFEO that of other oil samples. Finally, SFEO is emitting low combustive gas that of mineral oil with catalyst.Copyright (c) 2022 Elsevier Ltd. All rights reserved.Selection and peer-review under responsibility of the scientific committee of the International Conference on Smart and Sustainable Developments in Materials, Manufacturing and Energy Engineering
引用
收藏
页码：315 / 320
页数：6
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