2019 International Conference on High Voltage Engineering and Technology (ICHVET)最新文献

{"title":"Parametric Analysis of Surge Test Circuit for Auto Recloser to Resolve Experimental Difficulties","authors":"Dharmesh Yelamanchi, U R Sheshagiri Rao, N. Vasudev, A. Giridhar","doi":"10.1109/ICHVET.2019.8724335","DOIUrl":"https://doi.org/10.1109/ICHVET.2019.8724335","url":null,"abstract":"Automatic circuit reclosers or fault interrupters are self-controlled device for making, carrying, and automatically interrupting and reclosing an alternating-current circuit. The automatic circuit recloser consist an assembly of control elements required to detect over currents and control the recloser operation. These equipment capability to survive fast lightning induced surges have to be verified by simulated surge arrester operation test. This paper discusses about the International standard stipulated test requirements and practical difficulties encountered while performing the test. This paper also presents the PSPICE based parametric analysis and the effectiveness of the variation in each component of test circuit on the parameters of test voltage and current waveforms.","PeriodicalId":165193,"journal":{"name":"2019 International Conference on High Voltage Engineering and Technology (ICHVET)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127809784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental Study of Source Characteristics for Pollution Tests","authors":"M. Ramya, M. Dinesh","doi":"10.1109/ICHVET.2019.8724184","DOIUrl":"https://doi.org/10.1109/ICHVET.2019.8724184","url":null,"abstract":"This work is about a digital-computer simulation of the interaction between an artificially polluted insulator and a high-voltage alternating-current (AC) source configuration. In order to study the influence of source parameters on pollution performance, detail experiments were conducted and voltage drop for various conditions were determined. Simultaneously simulation of sources were carried out using P-Spice. The results of both experiments and simulation are given in this paper.","PeriodicalId":165193,"journal":{"name":"2019 International Conference on High Voltage Engineering and Technology (ICHVET)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117220418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High Voltage Behaviour of Large Size Air Insulated Coaxial Transmission Line","authors":"B. Raval, Vikrant Gupta, Dishang Upadhya, N. Goswami, K. Mehta, N. Singh, R. Dave, S. Gajjar, Amit P. Patel, H. Dhola, A. Thakar, U. Baruah","doi":"10.1109/ichvet.2019.8724245","DOIUrl":"https://doi.org/10.1109/ichvet.2019.8724245","url":null,"abstract":"Mega watt particle accelerators like Neutral Beam Injectors draw electrical power for Plasma formation, Ion Extraction at elevated potential of ~100kV, infact the water cooling lines, gas feed lines are also floating at 100kV. Usually power supplies, hydraulic/gas feed station of typical Injector are placed in a separate building/location. In such a scenario, large coaxial transmission lines are used to support power transport, hydraulic & gas feed lines, providing electrical isolation of 100kV. This paper presents electrostatic analysis for the complex configuration of large transmission line. Specially designed profiles to provide electrical isolation within permissible limits of electric stress. Further HVDC test results showing behaviour of Transmission line over longer exposure of 3600s are also presented.","PeriodicalId":165193,"journal":{"name":"2019 International Conference on High Voltage Engineering and Technology (ICHVET)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121205815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance of RTV Insulator Coatings Based on Filler Type","authors":"N. Arora","doi":"10.1109/ichvet.2019.8724292","DOIUrl":"https://doi.org/10.1109/ichvet.2019.8724292","url":null,"abstract":"This paper discusses the performance of RTV silicone rubber high voltage insulator coatings (HVIC) based on the type of filler used. The present-day emphasis on evaluating coating performance is based on their ability to withstand dry band arcing heat in the IEC 60587 inclined plane tracking and erosion (IPT). This has led to RTV coatings having either alumina trihydrate or quartz filler. At high filler loadings, both types of fillers show similar performance in the IPT. However, a significant difference in performance is observed in salt-fog tests which can be attributed to the type of filler in the coating formulation. This paper discusses these results to emphasize that hydrophobicity retention is the key performance indicator of RTV HVIC and that quartz is the preferred filler.","PeriodicalId":165193,"journal":{"name":"2019 International Conference on High Voltage Engineering and Technology (ICHVET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130447767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Commissioning of UHV Indoor Double Shielded Laboratory for Radio Interference Voltage and Partial Discharge Measurement","authors":"P. Rajamani, K. A. Aravind, K. Urukundu, P. Nirgude, B. Krisha, P. Shivaprasad","doi":"10.1109/ICHVET.2019.8724324","DOIUrl":"https://doi.org/10.1109/ICHVET.2019.8724324","url":null,"abstract":"In recent years, due to advancement of technology, the transmission voltage levels is goes on increasing. Worldwide 800 kV system is very common and in India experimental 1200 kV AC is successfully commissioned. Testing of vital equipment of such UHV transmission network is paramount importance to provide uninterrupted, reliable and quality power to the customers. Worldwide few testing laboratories having facility to test upto UHV class equipment, the Ultra High Voltage Research Laboratory (UHVRL) of Central Power Research Institute (CPRI), India is one among them. Recently, 2X600 kV, 2 A, 2400 kVA HVAC test system is commissioned in double shielded indoor laboratory at UHVRL, Hyderabad, India. This manuscript elaborates the experiences of commission of AC test system along with radio interference voltage and Partial Discharge (PD) measurement.","PeriodicalId":165193,"journal":{"name":"2019 International Conference on High Voltage Engineering and Technology (ICHVET)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127922881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Partial Discharge Aged Transformer Oil Using Optical Spectroscopy Techniques","authors":"S. Karmakar, Shivani Meshram, Hussain Kalathiripi","doi":"10.1109/ICHVET.2019.8724352","DOIUrl":"https://doi.org/10.1109/ICHVET.2019.8724352","url":null,"abstract":"In recent times, optical spectroscopy techniques are being widely accepted for chemical analysis of transformer oil. These techniques gained popularity because of the advantages like they are quite simple to perform, give results very quickly, outcome is reliable, and they are economical. Unlike traditional methods, these can also be carried out online with cost effective equipments. In this work, breakdown voltage test is done and then, UV - Visible (UV - Vis) spectroscopy and Fourier transform Infrared (FTIR) spectroscopy techniques have been used to investigate the condition of the transformer oil. To replicate the actual aging of oil in field, partial discharge (PD) in the laboratory environment has aged oil samples. Test results obtained from UV-Vis spectroscopy gives the qualitative analysis of transformer oil and FTIR spectroscopy evaluates the functional group present in it. The analysis is done precisely by relating the optical spectra obtained by spectroscopy techniques with the duration of aging. The results obtained justify that the optical spectroscopy techniques used, can accurately analyze the condition of aged transformer oil.","PeriodicalId":165193,"journal":{"name":"2019 International Conference on High Voltage Engineering and Technology (ICHVET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129457966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Proceedings of 2019 International Conference on High Voltage Engineering & Technology (ICHVET 2019)","authors":"","doi":"10.1109/ichvet.2019.8724379","DOIUrl":"https://doi.org/10.1109/ichvet.2019.8724379","url":null,"abstract":"Proceedings of 2019 International Conference on High Voltage Engineering & Technology (ICHVET 2019)","PeriodicalId":165193,"journal":{"name":"2019 International Conference on High Voltage Engineering and Technology (ICHVET)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129701593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of Nanoparticles on the Insulating Characteristics of Synthetic Esters","authors":"P. Thomas, Nandini E Hudedmani","doi":"10.1109/ICHVET.2019.8724188","DOIUrl":"https://doi.org/10.1109/ICHVET.2019.8724188","url":null,"abstract":"The extensive research work is concentrated on the development on the nanofluids for transformer insulation. Various type of nanofluids, viz. mineral oil, synthetic esters and vegetable oil based nanofluids are being developed and reported. These nanofluids are exhibited to show improvement in the critical parameters. In this paper, nanofluids were prepared by mixing two type of nanoceramics such as CaCu3Ti4O12(CCTO) and Ba0.85Ca0.15Zr0.1Ti0.9O3(BCZT) in synthetic ester. These nanoceramics with various weight percent (0.001 to 0.005 wt %) in synthetic esters were prepared under ultrasonication. These nano fluids were characterized for tan delta, resistivity, dielectric constant, AC breakdown voltage (BDV), flash point, and acidity. The nanofluids thus prepared were exhibited improved critical parameters. As the weight percent of nano particles increased in the base oil, the AC breakdown voltage (BDV) had increased. The nanofluids exhibited improved critical parameters as compared to that of base oil.","PeriodicalId":165193,"journal":{"name":"2019 International Conference on High Voltage Engineering and Technology (ICHVET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122254030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental Non Resonant Piezoelectric Transformer for High Voltage Measurement","authors":"Mohan P. Thakre, M. Satarkar, K. Vadirajacharya","doi":"10.1109/ICHVET.2019.8724165","DOIUrl":"https://doi.org/10.1109/ICHVET.2019.8724165","url":null,"abstract":"Piezoelectric Transformer (PTs) is solid-state devices that transform electrical energy into electrical energy by means of a mechanical vibration. These devices are manufactured using piezoelectric materials that are driven at resonance. With appropriate design and circuitry, it is possible to step up and step down the voltages between the input and output sections of the piezoelectric transformer, without making use of magnetic materials and obtaining excellent conversion efficiencies. The initial concept and of piezoelectric transformers through history has been linked to the relevant work of some excellent researchers as well as to the evolution in materials, manufacturing processes, and driving circuit techniques. First, the origins of nonlinearities and theoretical approaches are preliminarily discussed. Then, the hardware model is developed for a typical Rosen-type transformer and experimental investigations are presented. The results are used to confirm the validity and the methodology to express the terms added to the typical constitutive piezoelectric relations.","PeriodicalId":165193,"journal":{"name":"2019 International Conference on High Voltage Engineering and Technology (ICHVET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128197937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determination of Non-Inductive Residual Voltage for Steep (0.5 Microsecond Front Time) Impulse Currents on Station Class Surge Arrester Blocks","authors":"J. P, C. Prabhakar, N. Vasudev, M. Kanyakumari","doi":"10.1109/ICHVET.2019.8724190","DOIUrl":"https://doi.org/10.1109/ICHVET.2019.8724190","url":null,"abstract":"Metal Oxide Surge Arrester (MOSA) has been an essential part of power system since years. It safeguards the substation/distribution line equipment by limiting the surge voltage to an acceptable value. This is realized by the nonlinear property of the Zinc Oxide blocks used inside the MOSA. Protection Margin (PM) of the power system is defined as the difference between the BIL of the power system equipment to be protected and the residual voltage of the MOSA. The residual voltage of the MOSA depends on the peak and rate of rise of the surge current, therefore faster the surge, higher the residual voltage across MOSA. Power system is subjected to fast transients caused due to current chopping, bushing flashovers inside the valve hall, restrike in circuit breaker contacts, etc. MOSA when subjected to steeper current surges observe higher residual voltage, which shrinks the PM and may even damage the equipment to be protected. Steep impulse residual voltage of MOSA comprises of a non-inductive part, which is the property of the MOSA block and an inductive component which is determined by the length of the MOSA. IS 15086–4, 2017 [1] defines steep current of virtual front time of 1 microsecond and virtual time to half of not more than 20 microseconds. The standard also defines the procedure to measure the noninductive component of the residual voltage of MOSA when subjected to steep current impulse. But, even steeper currents can occur in the power systems due to reasons mentioned earlier; therefore, it is important to know the non-inductive residual voltage of the MOSA when subjected to such steeper current impulses. Hence in this paper, a steeper current impulse of 0.5 microsecond virtual front time is generated and the non-inductive residual voltage drop across the MOSA block is estimated for various classifications of station class surge arrester blocks. Comparison of steep (0.5 microsecond front time) current impulse residual voltage and lightning current impulse residual voltage is also performed which will be useful in conducting proper insulation co-ordination study of critical installations.","PeriodicalId":165193,"journal":{"name":"2019 International Conference on High Voltage Engineering and Technology (ICHVET)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114489794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}