Voltage Breakdown Characteristics of Transformer Mineral Oil with Varies the Composition of Corn Oil

2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS) Pub Date : 2019-10-01 DOI:10.1109/ICHVEPS47643.2019.9011119

S. Manjang, I. Kitta, A. Ikhlas

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引用次数: 6

Abstract

Insulating oil in distribution transformers is used as liquid insulation material and cooling winding. Distribution transformer oil from non-renewable petroleum minerals which is difficult to degrade has an impact on environmental pollution if it is unused or disposed of. This study uses corn oil from renewable natural resources for a mixture of petroleum mineral oil. The test material was made of samples from mineral transformer oil mixed with corn oil with different composition ratios, namely samples MJ0 (0: 100%); MJ20 (20: 80%); MJ40 (40: 60%); and MJ60 (60: 40%). The samples were tested for high voltage breakdown, viscosity, specific gravity and refractive index. The test results show that the mineral transformer oil mixed with corn oil to ≥40% slightly decreased in insulation strength with a voltage breakdown of 30.66 kV/2.5 mm (MJ0) to 20.93 kV/2.5 mm. Viscosity, specific gravity and refractive index showed an increase with the addition of a mixture of corn oil in mineral oil.

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不同玉米油成分对变压器矿物油电压击穿特性的影响

配电变压器中绝缘油作为液体绝缘材料和冷却绕组。配电变压器油是一种难以降解的不可再生石油矿物，如果不加以利用或处理，会对环境造成污染。本研究使用可再生自然资源中的玉米油作为石油矿物油的混合物。试验材料由矿物油与不同组成比例的玉米油混合的样品制成，即样品MJ0 (0: 100%);Mj20 (20: 80%);Mj40 (40: 60%);MJ60(60: 40%)。测试了样品的高压击穿、粘度、比重和折射率。试验结果表明:矿物油与玉米油掺量≥40%时，绝缘强度略有下降，电压击穿范围为30.66 kV/2.5 mm (MJ0) ~ 20.93 kV/2.5 mm;矿物油中加入玉米油混合物后，其粘度、比重和折射率均有所增加。

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2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)

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