传统矿物绝缘油配电变压器直接更换天然酯绝缘油可行性研究
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摘要
将一台传统矿物绝缘油配电变压器依次注入天然酯绝缘油和矿物绝缘油并进行多项试验对比研究。结果表明:注入天然酯绝缘油后的配电变压器外施耐压、感应耐压及绝缘油试验均能满足标准要求,且声级低于矿物绝缘油变压器1.5 dB。由于天然酯绝缘油运动黏度较大,注入天然酯绝缘油后配电变压器温升比矿物绝缘油变压器略高,但仍在允许范围内。可见将传统矿物绝缘油配电变压器绝缘介质直接更换成天然酯绝缘油具有一定的可行性。
Natural ester insulating oil and mineral insulating oil were successively injected into a conventional mineral insulating oil-filled distribution transformer, and performances of the transformer were studied. The results show that when the transformer was injected with natural ester insulating oil, its impressed voltage resistance, induced over-voltage withstand and insulating oil tests results meet standards,and its sound level is 1.5 dB lower than that of transformer injected with mineral insulating oil. The kinematic viscosity of natural ester insulating oil is higher than that of mineral insulating oil, so that the temperature rise of the transformer with natural eater oil is higher, but is still within the consenting range.In summary, it is feasible to change natural eater insulating oil for conventional mineral insulating oil-filled distribution transformer.
Natural ester insulating oil and mineral insulating oil were successively injected into a conventional mineral insulating oil-filled distribution transformer, and performances of the transformer were studied. The results show that when the transformer was injected with natural ester insulating oil, its impressed voltage resistance, induced over-voltage withstand and insulating oil tests results meet standards,and its sound level is 1.5 dB lower than that of transformer injected with mineral insulating oil. The kinematic viscosity of natural ester insulating oil is higher than that of mineral insulating oil, so that the temperature rise of the transformer with natural eater oil is higher, but is still within the consenting range.In summary, it is feasible to change natural eater insulating oil for conventional mineral insulating oil-filled distribution transformer.
引文
[1]项阳.浅谈植物绝缘油变压器[J].变压器,2014,51(12):23-27.
[2]杨涛,张小勇,王天,等.新型高燃点环保型液体绝缘介质-植物绝缘油[J].中国油脂,2016,41(11):41-45.
[3]杨涛,张慧,景冬冬,等.脱酸方式对天然酯绝缘油性能的影响[J].绝缘材料,2017,50(3):54-56.
[4]杨涛,寇晓适,王吉,等.电力变压器用植物绝缘油微水特性[J].变压器,2016,53(11):38-40.
[5]李剑,姚舒翰,杜斌,等.植物绝缘油及其应用研究关键问题分析与展望[J].高电压技术,2015,41(2):353-363.
[6]COULIBALY M L,PERRIER C,MARUGAN M,et al.Aging behavior of cellulosic materials in presence of mineral oil and ester liquids under various conditions[J].IEEE Transactions on Dielectrics and Electrical Insulation,2013,20(6):1971-1976.
[7]FRIMPONG G K,OOMMEN T V,ASANO R.A survey of aging characteristics of cellulose insulation in natural ester and mineral oil[J].IEEE Electrical Insulation Magazine,2011,27(5):36-48.
[8]IMAD U K,WANG Z D,COTTON I,et al.Dissolved gas analysis of alternative fluids for power transformers[J].IEEE Electrical Insulation Magazine,2007,23(5):5-14.
[9]MOORE S,RAPP K,BALDYGA R.Transformer insulation dry out as a result of retrofilling with natural ester fluid[C]//Transmission and Distribution Conference and Exposition.Orlando,USA:IEEE,2012:1-6.
[10]韩金华,陈奎,项阳,等.一种35k V环保新型植物绝缘油变压器[J].变压器,2014,51(11):18-21.
[11]王伟,韩金华,杨晓辉,等.植物绝缘油配电变压器的研制及运行[C]//中国电机工程学会年会.北京,2012.
[12]韩金华,韩筛根,王思宝,等.一种基于高燃点植物绝缘油变压器设计方法[J].变压器,2014,51(8):38-42.
[13]MCSHANE C P,LUKSICH J,RAPP K J.Retrofilling aging transformers with natural ester based dielectric coolant for safety and life extension[C]//Cement Industry Technical Conference.Dallas,USA:IEEE,2003:141-147.
[14]MCSHANE C P,CORKRAN J L,RAPP K J,et al.Aging of paper insulation retrofilled with natural ester dielectric fluid[C]//Conference on Electrical Insulation and Dielectric Phenomena.Albuquerque,USA:IEEE,2003:124-127.
[15]李建明,朱康.高压电气设备试验方法[M].北京:中国电力出版社,2001.
[16]全国变压器标准化技术委员会.电力变压器试验导则:JB/T501—2006[S].北京:机械工业出版社,2006.
[17]邱武斌,杨涛,王吉,等.天然酯绝缘油与油浸式变压器绝缘材料相容性研究[J].变压器,2016,53(3):26-29.
[18]Transformers Committee.IEEE guide for acceptance and maintenance of natural ester fluids in transformers:IEEE Std C57.147-2008[S],USA:IEEE,2008.
[2]杨涛,张小勇,王天,等.新型高燃点环保型液体绝缘介质-植物绝缘油[J].中国油脂,2016,41(11):41-45.
[3]杨涛,张慧,景冬冬,等.脱酸方式对天然酯绝缘油性能的影响[J].绝缘材料,2017,50(3):54-56.
[4]杨涛,寇晓适,王吉,等.电力变压器用植物绝缘油微水特性[J].变压器,2016,53(11):38-40.
[5]李剑,姚舒翰,杜斌,等.植物绝缘油及其应用研究关键问题分析与展望[J].高电压技术,2015,41(2):353-363.
[6]COULIBALY M L,PERRIER C,MARUGAN M,et al.Aging behavior of cellulosic materials in presence of mineral oil and ester liquids under various conditions[J].IEEE Transactions on Dielectrics and Electrical Insulation,2013,20(6):1971-1976.
[7]FRIMPONG G K,OOMMEN T V,ASANO R.A survey of aging characteristics of cellulose insulation in natural ester and mineral oil[J].IEEE Electrical Insulation Magazine,2011,27(5):36-48.
[8]IMAD U K,WANG Z D,COTTON I,et al.Dissolved gas analysis of alternative fluids for power transformers[J].IEEE Electrical Insulation Magazine,2007,23(5):5-14.
[9]MOORE S,RAPP K,BALDYGA R.Transformer insulation dry out as a result of retrofilling with natural ester fluid[C]//Transmission and Distribution Conference and Exposition.Orlando,USA:IEEE,2012:1-6.
[10]韩金华,陈奎,项阳,等.一种35k V环保新型植物绝缘油变压器[J].变压器,2014,51(11):18-21.
[11]王伟,韩金华,杨晓辉,等.植物绝缘油配电变压器的研制及运行[C]//中国电机工程学会年会.北京,2012.
[12]韩金华,韩筛根,王思宝,等.一种基于高燃点植物绝缘油变压器设计方法[J].变压器,2014,51(8):38-42.
[13]MCSHANE C P,LUKSICH J,RAPP K J.Retrofilling aging transformers with natural ester based dielectric coolant for safety and life extension[C]//Cement Industry Technical Conference.Dallas,USA:IEEE,2003:141-147.
[14]MCSHANE C P,CORKRAN J L,RAPP K J,et al.Aging of paper insulation retrofilled with natural ester dielectric fluid[C]//Conference on Electrical Insulation and Dielectric Phenomena.Albuquerque,USA:IEEE,2003:124-127.
[15]李建明,朱康.高压电气设备试验方法[M].北京:中国电力出版社,2001.
[16]全国变压器标准化技术委员会.电力变压器试验导则:JB/T501—2006[S].北京:机械工业出版社,2006.
[17]邱武斌,杨涛,王吉,等.天然酯绝缘油与油浸式变压器绝缘材料相容性研究[J].变压器,2016,53(3):26-29.
[18]Transformers Committee.IEEE guide for acceptance and maintenance of natural ester fluids in transformers:IEEE Std C57.147-2008[S],USA:IEEE,2008.