Pub Date : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011050
Chuanyang Li, Bo Liu, Jiancheng Wang, R. Gong, Guan Wang, Z. Lei, D. Fabiani, Chuanjie Lin, Jun Hu
The spacer is a challenging part of high voltage direct current (HVDC) gas-insulated switchgear (GIS) and gas- insulated transmission lines (GILs). Based on the charge adaptively controlling strategy verified by our previously published papers, this paper serves as an important step towards further industrialization of charge adaptively controlling spacers. The insulation compounding scheme based on previous researches is focused in this paper. Spacers composed of insulating regions and charge adaptive control regions with different mass fractions of nonlinear materials were prepared. The mechanical properties, as well as the DC and AC surface flashover performance of these spacers were investigated. The results show that the DC surface flashover voltage is greatly reduced using spacers with a pure insulating region and with a doped charge adaptive region. As the doping ratio of the nonlinear material in the insulating region increases, the surface flashover voltage increases remarkably. However, the mechanical stress decreases dramatically when the mass ratio of nonlinear material is beyond 35%. The different doping ratios of nonlinear materials does not make a difference in AC surface flashover voltage. However, these surface flashover values obtained by bowl shaped spacers are much more stable and higher than that of the values measured from traditional cone type spacers at AC. The results in this paper can be a key step and are helpful in further determining the preferred option of the industrial spacer that can be potentially used in HVDC GIS/GILs. Meanwhile, based on the advanced performance, the idea of the novel bowl shape has potentially possibility in the application field of AC GIS/GILs.
{"title":"Novel HVDC Spacers in GIS/GIL by Adaptively Controlling Surface Charges - Insulation Compounding Scheme","authors":"Chuanyang Li, Bo Liu, Jiancheng Wang, R. Gong, Guan Wang, Z. Lei, D. Fabiani, Chuanjie Lin, Jun Hu","doi":"10.1109/ICHVEPS47643.2019.9011050","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011050","url":null,"abstract":"The spacer is a challenging part of high voltage direct current (HVDC) gas-insulated switchgear (GIS) and gas- insulated transmission lines (GILs). Based on the charge adaptively controlling strategy verified by our previously published papers, this paper serves as an important step towards further industrialization of charge adaptively controlling spacers. The insulation compounding scheme based on previous researches is focused in this paper. Spacers composed of insulating regions and charge adaptive control regions with different mass fractions of nonlinear materials were prepared. The mechanical properties, as well as the DC and AC surface flashover performance of these spacers were investigated. The results show that the DC surface flashover voltage is greatly reduced using spacers with a pure insulating region and with a doped charge adaptive region. As the doping ratio of the nonlinear material in the insulating region increases, the surface flashover voltage increases remarkably. However, the mechanical stress decreases dramatically when the mass ratio of nonlinear material is beyond 35%. The different doping ratios of nonlinear materials does not make a difference in AC surface flashover voltage. However, these surface flashover values obtained by bowl shaped spacers are much more stable and higher than that of the values measured from traditional cone type spacers at AC. The results in this paper can be a key step and are helpful in further determining the preferred option of the industrial spacer that can be potentially used in HVDC GIS/GILs. Meanwhile, based on the advanced performance, the idea of the novel bowl shape has potentially possibility in the application field of AC GIS/GILs.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"55 1","pages":"268-271"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88478379","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}
Pub Date : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011120
B. Anitha, C. Koley
One of the useful way for localization of partial discharge (PD) sources inside any electrical substation is the use of multiple ultra-high frequency (UHF) sensors. UHF signals radiated from any PD source can travel a longer distance and can be captured by the multiple UHF sensors placed around the substations. The localization of PD sources is done primarily by calculating the time delays between the impulsive signals received at the UHF sensors.However, the time delay estimation is very challenging in the presence of interference of other Electro-Magnetic signals. In the present work, several time domain and frequency domain based techniques have been investigated and applied on several PD signals captured from the different air-insulated substation in India. Various time-domain based techniques that have been applied are the first peak (FP), cross-correlation (CC), and cumulative energy (CE). The frequency-domain based Generalized Cross Correlation (GCC) technique has also been applied with their different weighing functions such are the Phase Transform (PHAT), Smoothed Coherence Transform (SCOT), Maximum Likelihood estimator and the Eckart Filter (EF). From the experimental result, it is observed that the GCC with ML estimator provide the most suitable result across different experimental conditions.
{"title":"Maximum Likelihood-based Technique for Accurate Estimation of Time-delay between UHF Signals Radiated from Partial Discharge Sources","authors":"B. Anitha, C. Koley","doi":"10.1109/ICHVEPS47643.2019.9011120","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011120","url":null,"abstract":"One of the useful way for localization of partial discharge (PD) sources inside any electrical substation is the use of multiple ultra-high frequency (UHF) sensors. UHF signals radiated from any PD source can travel a longer distance and can be captured by the multiple UHF sensors placed around the substations. The localization of PD sources is done primarily by calculating the time delays between the impulsive signals received at the UHF sensors.However, the time delay estimation is very challenging in the presence of interference of other Electro-Magnetic signals. In the present work, several time domain and frequency domain based techniques have been investigated and applied on several PD signals captured from the different air-insulated substation in India. Various time-domain based techniques that have been applied are the first peak (FP), cross-correlation (CC), and cumulative energy (CE). The frequency-domain based Generalized Cross Correlation (GCC) technique has also been applied with their different weighing functions such are the Phase Transform (PHAT), Smoothed Coherence Transform (SCOT), Maximum Likelihood estimator and the Eckart Filter (EF). From the experimental result, it is observed that the GCC with ML estimator provide the most suitable result across different experimental conditions.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"5 1","pages":"012-017"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81039696","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}
Pub Date : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011140
Y. Wibisana, Master Jan Roy Turnip, Dedi Roi Candra Sihombing
Power transformer is the heart of power system and critical equipment in transmission line grid. Reliability of power transformer is the most important thing in transmission system. UIT JBT (Unit Induk Transmisi Jawa Bagian Tengah) as a unit of PLN that operates and maintains the middle section of java transmission system is responsible for ensuring power system reliability. Dissolved Gas Analysis (DGA) is widely used for interpreting condition and faults diagnostic of power transformer that depend on concentrations and composition of gases in transformer’s oils. It can be used to identify the type of pending or occurring faults and estimate it’s severity that will be used to determine the appropriate action and avoid unexpected failure. Transformer 150/20 kV 60 MVA at Tambun Substation has special case, which has only been operating since 2012 but in 5 years of operation detected anomaly (infant failure). Diagnosis of defects is obtained by DGA test and the interpretation indicated thermal fault 700°C. DGA trend showed a significant increase in gas concentration was detected which was suspected due to an internal fault of the transformer. The transformer followed up with shutdown investigation, and insulation test measurement between core and frame of the transformer indicated a short circuit which is further detected as a result of the displacement of the magnetic shunt that slide and shorting the core and the frame. Further corrective action taken by on site repair.
电力变压器是电力系统的心脏，是输电网中的关键设备。电力变压器的可靠性是输电系统中最重要的问题。UIT JBT (Unit Induk Transmisi java Bagian Tengah)作为PLN的一个运营和维护爪哇输电系统中段的单位，负责保证电力系统的可靠性。溶解气体分析(DGA)被广泛用于电力变压器的状态解释和故障诊断，它依赖于变压器油中气体的浓度和组成。它可用于识别待处理或发生故障的类型，并估计其严重程度，以确定适当的操作并避免意外故障。Tambun变电站的150/ 20kv 60mva变压器有特殊情况，该变电站2012年才开始运行，但运行5年后发现异常(婴儿故障)。缺陷的诊断是通过DGA测试得到的，解释表明热故障700°C。DGA趋势显示，检测到气体浓度明显增加，怀疑是变压器内部故障引起的。随后对变压器进行停机调查，通过对变压器铁心与机架之间的绝缘测试测量，发现变压器铁心与机架之间存在短路，并进一步检测到是由于磁分流器的位移滑动导致铁心与机架短路。现场维修所采取的进一步纠正措施。
{"title":"Diagnostic Magnetic Shunt Anomaly of Power Transformer 150/20 kV 60 MVA at Tambun Substation","authors":"Y. Wibisana, Master Jan Roy Turnip, Dedi Roi Candra Sihombing","doi":"10.1109/ICHVEPS47643.2019.9011140","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011140","url":null,"abstract":"Power transformer is the heart of power system and critical equipment in transmission line grid. Reliability of power transformer is the most important thing in transmission system. UIT JBT (Unit Induk Transmisi Jawa Bagian Tengah) as a unit of PLN that operates and maintains the middle section of java transmission system is responsible for ensuring power system reliability. Dissolved Gas Analysis (DGA) is widely used for interpreting condition and faults diagnostic of power transformer that depend on concentrations and composition of gases in transformer’s oils. It can be used to identify the type of pending or occurring faults and estimate it’s severity that will be used to determine the appropriate action and avoid unexpected failure. Transformer 150/20 kV 60 MVA at Tambun Substation has special case, which has only been operating since 2012 but in 5 years of operation detected anomaly (infant failure). Diagnosis of defects is obtained by DGA test and the interpretation indicated thermal fault 700°C. DGA trend showed a significant increase in gas concentration was detected which was suspected due to an internal fault of the transformer. The transformer followed up with shutdown investigation, and insulation test measurement between core and frame of the transformer indicated a short circuit which is further detected as a result of the displacement of the magnetic shunt that slide and shorting the core and the frame. Further corrective action taken by on site repair.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"23 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79830607","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}
Pub Date : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011085
Rizky Monica Virgine, R. Setiabudy
Kampung Mului is one of the villages in the area of Paser, East Kalimantan. Kampung Mului has not received electricity from PLN so that people who lived in there use generator set for daily needs. Kampung Mului conditions is a fundamental reason for the empowering potential of a waterfall in Kampung Mului be a source of Micro Hydro Power (MHP). In this study, discussed the feasibility of investing MHP economically use comparative expenses Village MHP Mului 20 years of operation with the public electricity expenses Kampung Mului if not wearing the MHP The results of the research show the potential power of Kampung Mului waterfall is 116.08 kW and electricity needs of Kampung Mului is 19,92 kW. The cost of using Kampung Mului community using a generator set is bigger than the cost of using PLTMH which is Rp 2.791.210.000, if using underground cable and Rp 1.394.110.000, - if using ACSR cable. Based on this, the development of PLTMH Kampung Mului is feasible to be implemented in economic terms. This study can be applied and helps the electricity problem in Kampung Mului.
Kampung Mului是东加里曼丹Paser地区的一个村庄。甘榜木赖没有从PLN获得电力，因此居住在那里的人们使用发电机组满足日常需求。甘榜木瑞的条件是甘榜木瑞瀑布成为微型水力发电(MHP)来源的一个根本原因。在本研究中，讨论了投资MHP经济使用的可行性比较费用村MHP木瑞20年运行与公共电力费用甘邦木瑞如果不使用MHP，研究结果表明，甘邦木瑞瀑布的潜在功率为116.08 kW，甘邦木瑞的电力需求为19.92 kW。使用Kampung Mului社区使用发电机组的成本大于使用PLTMH的成本，如果使用地下电缆，PLTMH的成本为2.791.21万卢比，如果使用ACSR电缆，PLTMH的成本为1.394.11万卢比。基于此，PLTMH甘榜木瑞的开发在经济上是可行的。该研究可以应用于甘榜木瑞的电力问题。
{"title":"Study of Feasibility Planning Micro Hydro Power Plant in Kampung Mului, Paser","authors":"Rizky Monica Virgine, R. Setiabudy","doi":"10.1109/ICHVEPS47643.2019.9011085","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011085","url":null,"abstract":"Kampung Mului is one of the villages in the area of Paser, East Kalimantan. Kampung Mului has not received electricity from PLN so that people who lived in there use generator set for daily needs. Kampung Mului conditions is a fundamental reason for the empowering potential of a waterfall in Kampung Mului be a source of Micro Hydro Power (MHP). In this study, discussed the feasibility of investing MHP economically use comparative expenses Village MHP Mului 20 years of operation with the public electricity expenses Kampung Mului if not wearing the MHP The results of the research show the potential power of Kampung Mului waterfall is 116.08 kW and electricity needs of Kampung Mului is 19,92 kW. The cost of using Kampung Mului community using a generator set is bigger than the cost of using PLTMH which is Rp 2.791.210.000, if using underground cable and Rp 1.394.110.000, - if using ACSR cable. Based on this, the development of PLTMH Kampung Mului is feasible to be implemented in economic terms. This study can be applied and helps the electricity problem in Kampung Mului.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"23 1","pages":"163-168"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80138838","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}
Pub Date : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011041
H. R. Iskandar, Eldy Darmawan, Y. Zainal, Giri Angga Setia, Naftalin Winanti, Fauzia Haz
Indonesia's electricity consumption is projected to increase significantly when fossil fuels run out, therefore renewable energy is used as an innovative step to meet these electricity needs. In this paper, will discuss a Photovoltaic (PV) Power Plant design proposed to meet electrical energy needs in Electrical Engineering Laboratory (EEL) of the Faculty of Engineering (FoE), Universitas Jenderal Achmad Yani (Unjani). This design is made by considering the existing laboratory load capacity, the need for solar panel units, configuration, and type of installation, the number of solar panel components, climate data, and the maximum tilt angle of the panel that can be produced for 1 year. The simulation of rooftop PV systems laboratories produce a PV Generator Power (AC grid) 31.220 kWh/year, the required area is 200 m2 with 121 units of 265 Wp solar panels, and 11 units of 2 kW inverter connected on-grid 220V/50 Hz, with a fixed tilt angle 16˚ face to the north. These results are projected to meet electricity consumption needs in the laboratory.
{"title":"Design of Solar Power Plant for Electrical Engineering Department Laboratory","authors":"H. R. Iskandar, Eldy Darmawan, Y. Zainal, Giri Angga Setia, Naftalin Winanti, Fauzia Haz","doi":"10.1109/ICHVEPS47643.2019.9011041","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011041","url":null,"abstract":"Indonesia's electricity consumption is projected to increase significantly when fossil fuels run out, therefore renewable energy is used as an innovative step to meet these electricity needs. In this paper, will discuss a Photovoltaic (PV) Power Plant design proposed to meet electrical energy needs in Electrical Engineering Laboratory (EEL) of the Faculty of Engineering (FoE), Universitas Jenderal Achmad Yani (Unjani). This design is made by considering the existing laboratory load capacity, the need for solar panel units, configuration, and type of installation, the number of solar panel components, climate data, and the maximum tilt angle of the panel that can be produced for 1 year. The simulation of rooftop PV systems laboratories produce a PV Generator Power (AC grid) 31.220 kWh/year, the required area is 200 m2 with 121 units of 265 Wp solar panels, and 11 units of 2 kW inverter connected on-grid 220V/50 Hz, with a fixed tilt angle 16˚ face to the north. These results are projected to meet electricity consumption needs in the laboratory.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"33 1","pages":"145-150"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89420403","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}
Pub Date : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011111
H. Hartono, M. Azis, Y. Muharni
One way to reduce reactive power in a distribution system is to install a capacitor bank. Bank capacitors can increase the voltage profile on the system. optimal placement of bank capacitors can reduce costs incurred. in this study discussed the optimization of the placement of bank capacitors using genetic algorithms on the IEEE 118 Bus system. Genetic Algorithm (GA) is a method that mimics the mechanism of the evolutionary process. This evolutionary process is carried out on a set of candidate solutions (chromosomes) by following the principle of natural selection developed by Darwin. The results of this study indicate that the use of the genetic algorithm method can reduce power loss by 13,67% on the IEEE 118 Bus Systems. Besides being able to reduce power loss, capacitors can also increase the voltage profile, the IEEE 118 Bus Systems voltage profile increases from 0.8687 to 0.9269 Pu.
{"title":"Optimal Capacitor Placement For IEEE 118 Bus System By Using Genetic Algorithm","authors":"H. Hartono, M. Azis, Y. Muharni","doi":"10.1109/ICHVEPS47643.2019.9011111","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011111","url":null,"abstract":"One way to reduce reactive power in a distribution system is to install a capacitor bank. Bank capacitors can increase the voltage profile on the system. optimal placement of bank capacitors can reduce costs incurred. in this study discussed the optimization of the placement of bank capacitors using genetic algorithms on the IEEE 118 Bus system. Genetic Algorithm (GA) is a method that mimics the mechanism of the evolutionary process. This evolutionary process is carried out on a set of candidate solutions (chromosomes) by following the principle of natural selection developed by Darwin. The results of this study indicate that the use of the genetic algorithm method can reduce power loss by 13,67% on the IEEE 118 Bus Systems. Besides being able to reduce power loss, capacitors can also increase the voltage profile, the IEEE 118 Bus Systems voltage profile increases from 0.8687 to 0.9269 Pu.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"25 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72813764","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}
Pub Date : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011147
Kiswanto, Dian Agung Nugroho
Faster wireless telecommunication systems are going to be the future of Telecommunication Industry. EMC issues and natural challenges arise with its growing entry in modern customer premises equipment (CPE). Optical Network Terminal is used by PT TELKOM to deliver fixed broadband services to customer, some case Telkom’s CPE network get disturbance by lightning strikes. Faster delivered data from a device need more transmit power, this contribution provides an overview of the occurring and electromagnetic interference dominating disturbance voltage of an Optical Network Terminal (ONT) in telecommunication system. EMC measurements and EMC Engineering measurement method is introduced and applied in this study with 30 MHz – 1 GHz range frequency. The presented method covers recurring radiated emission measurements according to CISPR 22 standard. 4 kV disturbance on power supply cable by surge generator in combination with ONT installation and GTEM Cell obtaining estimation of the radiated emissions occurring during the test. The result of radiated emission test is compared between ONT with voltage disturbance attached and without it. Examination of high voltage disturbance contribution to the radiated emission measurement is presented using CISPR 22 statistic graph and emission pattern inside the test cell of GTEM.
{"title":"Radiated Emissions Anomaly Caused by High Voltage Disturbance of an Optical Network Terminal (ONT) Installation","authors":"Kiswanto, Dian Agung Nugroho","doi":"10.1109/ICHVEPS47643.2019.9011147","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011147","url":null,"abstract":"Faster wireless telecommunication systems are going to be the future of Telecommunication Industry. EMC issues and natural challenges arise with its growing entry in modern customer premises equipment (CPE). Optical Network Terminal is used by PT TELKOM to deliver fixed broadband services to customer, some case Telkom’s CPE network get disturbance by lightning strikes. Faster delivered data from a device need more transmit power, this contribution provides an overview of the occurring and electromagnetic interference dominating disturbance voltage of an Optical Network Terminal (ONT) in telecommunication system. EMC measurements and EMC Engineering measurement method is introduced and applied in this study with 30 MHz – 1 GHz range frequency. The presented method covers recurring radiated emission measurements according to CISPR 22 standard. 4 kV disturbance on power supply cable by surge generator in combination with ONT installation and GTEM Cell obtaining estimation of the radiated emissions occurring during the test. The result of radiated emission test is compared between ONT with voltage disturbance attached and without it. Examination of high voltage disturbance contribution to the radiated emission measurement is presented using CISPR 22 statistic graph and emission pattern inside the test cell of GTEM.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"5 1","pages":"240-243"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74404539","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}
Pub Date : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011113
A. Zaeni, U. Khayam, Deny Viviantoro
Power cable is equipment in an electrical distribution system that has functions to deliver electrical energy from the source to the load. Estimates of power cable remaining life are important to be done for ensure the reliability of the electricity distribution system. Partial discharge measurement as a best method of high voltage equipment diagnosis can be a reference in estimating the remaining life of power cables. This paper discusses the results of partial discharge testing on XLPE insulation of subsea power cables using several voltage levels and use that result to estimates the remaining life of the power cable with regard to loading factor. based on the test, there is a significant relationship between voltage level and the charge value of partial discharge.
{"title":"Methods for Remaining Life Prediction of Power Cable based on Partial Discharge with Regard to Loading Factor Calculation and Voltage Variation","authors":"A. Zaeni, U. Khayam, Deny Viviantoro","doi":"10.1109/ICHVEPS47643.2019.9011113","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011113","url":null,"abstract":"Power cable is equipment in an electrical distribution system that has functions to deliver electrical energy from the source to the load. Estimates of power cable remaining life are important to be done for ensure the reliability of the electricity distribution system. Partial discharge measurement as a best method of high voltage equipment diagnosis can be a reference in estimating the remaining life of power cables. This paper discusses the results of partial discharge testing on XLPE insulation of subsea power cables using several voltage levels and use that result to estimates the remaining life of the power cable with regard to loading factor. based on the test, there is a significant relationship between voltage level and the charge value of partial discharge.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"24 1","pages":"180-185"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78971014","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}
Pub Date : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011071
A. P. Purnomoadi, A. S. Alam, G. Supriyadi
An effort to reduce the overhead line outage due to encroachments like trees and kites, by covering the conductor with silicone rubber has been proposed. Models have been developed to simulate the ampacity and the sagging of conductor before and after the addition of silicon rubber cover. The model represents a 240mm2 ACSR (Aluminum Conductor Steel-Reinforce)-Hawk conductor with thicknesses of the cover of 4, 5, and 6 mm. As a result, the addition of silicon rubber can reduce the ampacity up to 17%, and the height of the sagging increases by 38%.
{"title":"The Influence of Silicon Rubber Cover to the Ampacity and Sagging of Overheadline","authors":"A. P. Purnomoadi, A. S. Alam, G. Supriyadi","doi":"10.1109/ICHVEPS47643.2019.9011071","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011071","url":null,"abstract":"An effort to reduce the overhead line outage due to encroachments like trees and kites, by covering the conductor with silicone rubber has been proposed. Models have been developed to simulate the ampacity and the sagging of conductor before and after the addition of silicon rubber cover. The model represents a 240mm2 ACSR (Aluminum Conductor Steel-Reinforce)-Hawk conductor with thicknesses of the cover of 4, 5, and 6 mm. As a result, the addition of silicon rubber can reduce the ampacity up to 17%, and the height of the sagging increases by 38%.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"32 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75451761","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}
Pub Date : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011089
Hedi Purwanto, Hikmah Prasetia, Idam Firdaus
Busbar is the main terminal in switchgear that connecting all feeders. The highest short circuit current occurs on the busbar. Thus, it needs to be considered to provide a busbar protection system to reduce the effect by detecting and shutting down the busbar immediately whenever bus fault occurs. Mostly, this protection system doesn't installed at MV switchgear due to efficiency reason. The absence of busbar protection system on MV busbar, impact to 60 MVA 150/20 kV transformer condition. Conventional protection scheme only using delay time cascading of overcurrent relay on incoming and outgoing feeder to clearing the fault. Time delay on incoming feeder should be slower than outgoing feeder. The problem is that whenever busbar fault occurs, it would be delayed for fault clearing. Trough fault current (TFC) would flow in transformer for particular delay time and decrease health index and accelerate transformer aging. This paper deals about implementations of overcurrent relays with a non-cascade scheme on MV switchgear as busbar protection. This scheme doesn't use Kirchhoff current law principle for busbar protection. It only uses simple coordination between each relay in MV switchgear. Natural conditions are used to determine whether external or internal busbar fault. When it occurs internal fault, it can provide instantaneous clearing time. However, for external fault would be clear with delay time. By using this scheme, busbar fault can be detected and trip immediately.
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