PROSPECTS FOR THE USE OF ASPERGILLUS NIGER CHITIN-GLUCAN COMPLEX IN THE COMPOSITION OF ELECTRICAL INSULATING TYPES OF PAPER
Abstract
The paper presents the results of experiments to improve the performance of insulating paper as a component of high-voltage paper-impregnated insulation by introducing the modifying additive into the paper mass. Environmentally safe and economically feasible method of obtaining modifying additives of the chitin-glucan complex of Aspergillus niger (A.n.) which is a large-tonnage waste production of citric acid is proposed. The modifying additive was introduced into the paper mass in an amount of 5–10% to the mass of absolutely dry fiber of sulfate insulating cellulose. The paper samples were subjected to accelerated thermal aging at 140 °C for 250 hours. The values of the short – term electrical strength of the samples with the modifying additive, both in the initial and in the aged state, exceeded the similar characteristic of the paper sample without additives. for the paper made of 100% cellulose after 250 hours of accelerated thermal aging the maximal mechanical tensile strength decreased by 2.1 times; for paper containing 5% HGC A.n. – by 1.5 times and for the insulating paper, which was introduced into 10% of the modifying additive, the specified parameter during the test has not changed. Comparative evaluation of the sorption activity of the cellulose component was carried out by determining the light transmission coefficient of transformer oil relative to the standard at the process of thermal aging. It was found that the modification of insulating paper by biopolymer also increases its sorption activity in relation to the products of destruction of paper-impregnated insulation components under the catalytic effect of copper.
Downloads
Metrics
References
Podshivalov D.N. Rynok limonnoy kisloty. [The market of citric acid.]. URL: http://www.tsenovik.ru/articles/korma-i-kormovye-dobavki/rynok-limonnoy-kisloty/ (date of the application05.01.2018) (in Russ.).
Peristyy V.A., Goldovskaya-Peristaya L.F., Prokhorova G.V. Nauchnyye vedomosti BGU, 2008, no. 3, pp. 147–151. (in Russ.).
Osovskaya I.I., Budilina D.L., Tarabukina Ye.B., Nud'ga L.A. Khitin-glyukanovyye kompleksy (fiziko-khimicheskiye svoystva i molekulyarnyye kharakteristiki. [Chitin-glucan complexes (physicochemical properties and molecular character-istics)]. St. Petersburg, 2010, 52 p. (in Russ.).
Reznik A.S. Povysheniye termostabil'nosti komponentov vysokovol'tnoy bumazhno-propitannoy izolyatsii putem strukturnoy modifikatsii tsellyuloznoy bumagi: dissertatsiya kandidata tekhnicheskikh nauk. [Improving the thermal sta-bility of the components of high-voltage paper-impregnated insulation by structural modification of cellulose paper: the dissertation of the candidate of technical sciences]. St. Petersburg, 2017, 182 p. (in Russ.).
Zhuravleva N., Reznik А.,Tukacheva А., Kiesewetter D., Smirnova Е. Proceedings of IEEE conference ELEKTRO 2016, 2016, pp. 649–653. DOI: 10.1109/RTUCON.2016.7763089.
Bystritskiy G.F., Kudrin B.I. Vybor i ekspluatatsiya silovykh transformatorov. [Selection and operation of power trans-formers.]. Moscow, 2003, 176 p. (in Russ.).
Osotov V.N. Elektro, 2008, no. 6, pp. 27–29.
Bondareva V.N. Destruktsiya bumazhnoy izolyatsii silovykh transformatorov v ekspluatatsii: avtoreferat dissertatsii kandidata tekhnicheskikh nauk. [Destruction of paper insulation of power transformers in operation: abstract of the disser-tation of the candidate of technical sciences]. Moscow, 2006, 16 p. (in Russ.).
Lei Peng, Qiang Fu, Yaohong, Yihua Qian, Tiansheng Chen, Shengping Fan. Energies, 2018, vol. 11, no. 4, 716. DOI: 10.3390/en11040716.
Leibfried T., Jaya M., Majer N., Schafer M., Stach M., Voss S. IEEE Transactions on Power Delivery, 2013, vol. 28, no. 2, pp. 886–892. DOI: 10.1109/TPWRD.2013.2245152.
Duval М., De Pablo А., Atanasova-Hoehlein I., Grisaru М. IEEE Electrical Insulation Magazine, 2017, vol. 33, no. 1, pp. 32–38. DOI: 10.1109/МКВ.2017.7804314.
Coulibaly M-L., Perrier C., Marugan M., Beroual A. IEEE Transactions on Dielectrics and Electrical Insulation, 2013, Vol. 26, no. 6, pp. 1971–1976. DOI: 10.1109/TDEI.2013.6678843.
Dolin, A.P., Pershina N.F., Smekalov V.V. Proceedings of CIGRE Session 39 CIGRE, 2002, 7 p.
Lokhanin A.K. Elektroenergiya. Peredacha i raspredeleniye, 2010, no. 3, pp. 80–87. (in Russ.).
Taghikhani M.A. International Journal of Energy Engineering, 2011, no. 1, pp. 9–11. DOI: 10.5923/j.ijee.20110101.02.
Osotov V.N. Kontrol' tekhnicheskogo sostoyaniya oborudovaniya ob"yektov energetiki: materialy III Nauchno-prakticheskoy konferentsii. [Monitoring the technical condition of equipment of energy facilities: materials of the III Scien-tific and Practical Conference], 2016, pp. 49. URL: http://www.tiees.ru/fileadmin/f/Conference/ 2016/15._Osotov_V.N._Prakticheskie_aspekty_ocenki_sroka_sluzhby_transformatorov.pdf (date of the application 05.02. 18) (in Russ.).
Khlystikov A.V., Ignat'yev I.V. Sistemy. Metody. Tekhnologii, 2013, no. 3, pp. 117–120. (in Russ.).
Mamani M. L., Medina R., Romero A.A., Mombello E., Ratta G. Proceedings of CIGRE Session 45, 2014, 8 p.
Zhuravleva N.M., Kizevetter D.V., Reznik A.S., Smirnova Ye.G., Khripunov A.K. Nauchno-tekhnicheskiye vedomosti SPbPU. Yestestvennyye i inzhenernyye nauki. Yestestvennyye i inzhenernyye nauki, 2018, vol. 24, no. 1, pp. 75–86. DOI: 10.18721/JEST.24.1.7. (in Russ.).
Author's Certificate 1067114 (USSR). 1984. (in Russ.).
Maslyakova A.V. Povysheniye elektrofizicheskikh kharakteristik i ustoychivosti k termostareniyu tsellyulozosoderzhash-chego dielektrika putem yego modifikatsii khitozanom: dissertatsiya kandidata tekhnicheskikh nauk. [Increase of electro-physical characteristics and resistance to thermal aging of a cellulose-containing dielectric by its modification with chi-tosan: the dissertation of the candidate of technical sciences]. St. Petersburg, 2005, 204 p. (in Russ.).
WO 2005/118952 A1. РСТ/ СА2005/000770. 2005.
Patent 2648640 (RU). 2018. (in Russ.).
Copyright (c) 2019 Khimiia rastitel'nogo syr'ia (Chemistry of plant raw material)
This work is licensed under a Creative Commons Attribution 4.0 International License.
This work is licensed under a Creative Commons Attribution 4.0 International License.
The authors, which are published in this journal, agree to the following conditions:
1. Authors retain the copyright to the work and transfer to the journal the right of the first publication along with the work, at the same time licensing it under the terms of the Creative Commons Attribution License, which allows others to distribute this work with the obligatory indication of the authorship of this work and a link to the original publication in this journal .
2. The authors retain the right to enter into separate, additional contractual agreements for the non-exclusive distribution of the version of the work published by this journal (for example, to place it in the university depository or to publish it in a book), with reference to the original publication in this journal.
3. Authors are allowed to post their work on the Internet (for example, in a university repository or on their personal website) before and during the review process of this journal, as this may lead to a productive discussion, as well as more links to this published work.
