Pub Date : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011149
Naftalin Winanti, Giri Angga Setia, N. Heryana, H. R. Iskandar, A. Purwadi
The development of renewable energy sector is one of Indonesia National Priorities in the field of Energy Security. The small Grid system is one of Renewable Energy and Energy Conservation priority programs as stated in the Presidential Regulation of the Republic of Indonesia Number 79 of 2014. The development of the small grid system is by providing Energy Saving Solar Lamps ( LTSHE) to improve the value of electrification that has not been evenly distributed in Indonesia. LTSHE is being implemented by considering the potential of solar energy in Indonesia. The government also concerning the acceleration of LTSHE to improve the electrification number. The challenge that must be faced In developing LTSHE is the difference in irradiance value in each region in Indonesia due to the geographical conditions of Indonesia. Therefore, there must be study to improve the quality of LTSHE and this research is providing an analysis of LTSHE specification. The research location in this paper is Ciater, with its solar potential that similar with Indonesia average solar irradiance value, the minimum solar panel is 30Wp with energy price 7.435 IDR.
{"title":"Analysis of Energy-Saving Solar Lamp in Ciater, Indonesia","authors":"Naftalin Winanti, Giri Angga Setia, N. Heryana, H. R. Iskandar, A. Purwadi","doi":"10.1109/ICHVEPS47643.2019.9011149","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011149","url":null,"abstract":"The development of renewable energy sector is one of Indonesia National Priorities in the field of Energy Security. The small Grid system is one of Renewable Energy and Energy Conservation priority programs as stated in the Presidential Regulation of the Republic of Indonesia Number 79 of 2014. The development of the small grid system is by providing Energy Saving Solar Lamps ( LTSHE) to improve the value of electrification that has not been evenly distributed in Indonesia. LTSHE is being implemented by considering the potential of solar energy in Indonesia. The government also concerning the acceleration of LTSHE to improve the electrification number. The challenge that must be faced In developing LTSHE is the difference in irradiance value in each region in Indonesia due to the geographical conditions of Indonesia. Therefore, there must be study to improve the quality of LTSHE and this research is providing an analysis of LTSHE specification. The research location in this paper is Ciater, with its solar potential that similar with Indonesia average solar irradiance value, the minimum solar panel is 30Wp with energy price 7.435 IDR.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"565 1","pages":"140-144"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75679413","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/ICHVEPS47643.2019.9011037
B. H. Wijaya, N. Hariyanto
Power quality and voltage stability are the main indicators of customer satisfaction because it influences business operations. Based on the results of the 2016 customer satisfaction survey by Markplus.inc, some industrial customers complain of voltage stability, especially related to dip voltage. Industrial customers complained about this dip voltage due to the loss of the company's operational tools. Dip voltage is a problem that must be resolved by industrial customers and electric utility companies. For electric utility companies, dip voltage greatly affects the sale of electricity that is not optimal because the dip voltage has an impact on the operation failure in industrial machinery. In addition, the dip voltage also has a negative effect on the service image of the electric utility company on the priority customer side. For this reason, the voltage dip needs to be handled seriously. According to IEEE 1159-1995, Dip voltage of 20 kV is a decrease in AC voltage of 2 kV up to 18 kV for 0.01 seconds until 60 seconds (for a frequency of 50 Hz). This dip voltage is caused by lightning, network interference, the effect of switching, motor operation, and sudden load changes. Dip voltage causes a huge financial impact on industrial consumers. In this paper, a dip voltage case study will be evaluated at The Food and Beverage Industry in East Java. The financial loss of industrial customers reaches 328,000 USD or 4.7 billion Rupiah in one dip voltage event. This is because customers have suffered a production failure so they have to restart their production process. They also have to dispose of large quantities of raw materials due to product failure due to the dip voltage. For this reason, it is necessary to formulate a proposed management model in solving this dip voltage problem. This paper also offers proposed steps that can be taken by electric utility companies in suppressing the amount of dip voltage so that the electricity supply becomes more qualified. In accordance with the evaluation of priority and risk management matrices, the results show that the steps are appropriate and can be implemented in reducing the number of dip voltages.
{"title":"Risk Cost Analysis and Impact of Dip Voltage, Case Study of The Food and Beverage Industry in East Java","authors":"B. H. Wijaya, N. Hariyanto","doi":"10.1109/ICHVEPS47643.2019.9011037","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011037","url":null,"abstract":"Power quality and voltage stability are the main indicators of customer satisfaction because it influences business operations. Based on the results of the 2016 customer satisfaction survey by Markplus.inc, some industrial customers complain of voltage stability, especially related to dip voltage. Industrial customers complained about this dip voltage due to the loss of the company's operational tools. Dip voltage is a problem that must be resolved by industrial customers and electric utility companies. For electric utility companies, dip voltage greatly affects the sale of electricity that is not optimal because the dip voltage has an impact on the operation failure in industrial machinery. In addition, the dip voltage also has a negative effect on the service image of the electric utility company on the priority customer side. For this reason, the voltage dip needs to be handled seriously. According to IEEE 1159-1995, Dip voltage of 20 kV is a decrease in AC voltage of 2 kV up to 18 kV for 0.01 seconds until 60 seconds (for a frequency of 50 Hz). This dip voltage is caused by lightning, network interference, the effect of switching, motor operation, and sudden load changes. Dip voltage causes a huge financial impact on industrial consumers. In this paper, a dip voltage case study will be evaluated at The Food and Beverage Industry in East Java. The financial loss of industrial customers reaches 328,000 USD or 4.7 billion Rupiah in one dip voltage event. This is because customers have suffered a production failure so they have to restart their production process. They also have to dispose of large quantities of raw materials due to product failure due to the dip voltage. For this reason, it is necessary to formulate a proposed management model in solving this dip voltage problem. This paper also offers proposed steps that can be taken by electric utility companies in suppressing the amount of dip voltage so that the electricity supply becomes more qualified. In accordance with the evaluation of priority and risk management matrices, the results show that the steps are appropriate and can be implemented in reducing the number of dip voltages.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"32 1","pages":"062-066"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80234215","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/ICHVEPS47643.2019.9011115
Ignatius Rendroyoko, N. Sinisuka, Deddy P. Koesrindartoto
With the development of technology, renewable energy sources (RES) have been developed on islands and electricity systems in isolated areas, including RES which have intermittent characteristics. Those variable renewable energy power plants are operated by integration into existing power systems. The rapid increase of variable RES power plants integration into electricity network has given effect on the development of unit commitment (UC) schemes which aimed to ensure the operation of electric power systems stability, resilience, and with minimum operating cost can be maintained. To achieve these goals, it is necessary to develop optimization methods to be applied to the UC scheme for the island's electricity system.This paper discusses the most suitable optimization methods for the inclusion of renewable energy power generation using a unit commitment scheme in the microgrid electricity system. The methods here are a hybrid technique which combines enhanced priority list method for accurate generation unit scheduling and genetic algorithm (GA) technique for an optimum search for the lowest operational cost. The capacity of generating units to operate per capability segment is also taken into account in operating scheduling and affects the number of iterations in the operation of genetic algorithm techniques. This method has been simulated on the Timor electricity system, which is a growing power system and has an intermittent RES power plant. Implementation in other locations with other variable RES could provide better results. This method is an enrichment of hybrid techniques developed in previous studies. This enrichment is carried out on the calculation by segmenting the ability of generating units.
{"title":"Optimizing Unit Commitment Schemes for Variable RES Power Plant Integration in Microgrid Systems","authors":"Ignatius Rendroyoko, N. Sinisuka, Deddy P. Koesrindartoto","doi":"10.1109/ICHVEPS47643.2019.9011115","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011115","url":null,"abstract":"With the development of technology, renewable energy sources (RES) have been developed on islands and electricity systems in isolated areas, including RES which have intermittent characteristics. Those variable renewable energy power plants are operated by integration into existing power systems. The rapid increase of variable RES power plants integration into electricity network has given effect on the development of unit commitment (UC) schemes which aimed to ensure the operation of electric power systems stability, resilience, and with minimum operating cost can be maintained. To achieve these goals, it is necessary to develop optimization methods to be applied to the UC scheme for the island's electricity system.This paper discusses the most suitable optimization methods for the inclusion of renewable energy power generation using a unit commitment scheme in the microgrid electricity system. The methods here are a hybrid technique which combines enhanced priority list method for accurate generation unit scheduling and genetic algorithm (GA) technique for an optimum search for the lowest operational cost. The capacity of generating units to operate per capability segment is also taken into account in operating scheduling and affects the number of iterations in the operation of genetic algorithm techniques. This method has been simulated on the Timor electricity system, which is a growing power system and has an intermittent RES power plant. Implementation in other locations with other variable RES could provide better results. This method is an enrichment of hybrid techniques developed in previous studies. This enrichment is carried out on the calculation by segmenting the ability of generating units.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"12 1","pages":"333-338"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81908269","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/ICHVEPS47643.2019.9011107
J. Butler
Polymer insulators have been in production for over 50 years. There are numerous benefits to the use of polymer insulators that may not be well understood in the industry. This paper presents the laboratory and field-based experience and results of polymer insulator performance over the last 50 years that demonstrates the benefits and superior performance of this product to others available in the industry. These advantages are related to the design and construction of the transmission line as well other benefits of polymer insulators and their superior performance in contamination, flashover, and reducing system losses. All of these advantages can lead to significant cost savings for high voltage transmission projects. From contractors and construction crews to transmission line design engineers, owners, and operators, polymer insulators are a proven technology that can provide tremendous advantages
{"title":"Optimization of Transmission Line Design and Insulating Material","authors":"J. Butler","doi":"10.1109/ICHVEPS47643.2019.9011107","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011107","url":null,"abstract":"Polymer insulators have been in production for over 50 years. There are numerous benefits to the use of polymer insulators that may not be well understood in the industry. This paper presents the laboratory and field-based experience and results of polymer insulator performance over the last 50 years that demonstrates the benefits and superior performance of this product to others available in the industry. These advantages are related to the design and construction of the transmission line as well other benefits of polymer insulators and their superior performance in contamination, flashover, and reducing system losses. All of these advantages can lead to significant cost savings for high voltage transmission projects. From contractors and construction crews to transmission line design engineers, owners, and operators, polymer insulators are a proven technology that can provide tremendous advantages","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"36 1","pages":"297-303"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77240520","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/ICHVEPS47643.2019.9011049
D. Barus, R. Dalimi
Solar Power Plant (SPP) and Wind Power Plant (WPP) are parts of the Renewable Power Plant (REPP) which are quite popular and have been developed and operated widely throughout the world because of its advantages as clean energy, low cost fuel, and increasingly economical investment costs. In the last few years in Indonesia, SPP and WPP have started to be developed in several areas in Indonesia. Based on the Long-Term Planning Document for Electricity Development, it is planned that in 2025 around 23% of the total energy mix in Indonesia will come from REPP. But both types of plants have intermittent/ variable characteristics that can change quickly according to weather conditions and solar intensity which naturally cannot be controlled by the power system operator. This condition is categorized as Variable Renewable Energy (VRE). This intermittent nature has the potential to endanger the power system stability and reliability. One of the main cause is the lack of provisions in the Grid Code that clearly regulates the operation of VRE. This has led to many studies to find specific and appropriate adaptation of the existing Grid Code that are unique to each network based on its own characteristics, the availability of local natural resources, and government policies.This paper presents a brief literature review on the Grid Code that has been applied in Indonesia. This paper also explain the characteristics of SPP. Furthermore, this paper presents comprehensive impact of SPP operations in the Kupang sub-system, in terms of operating patterns and power system stability. This study will be used as a preliminary study in the formulation of the technical parameters of the Indonesian Grid Code Adaptation toward Variable Renewable Energy Penetration.
{"title":"The Requirement of Indonesian Grid Code Adaptation toward Variable Renewable Energy Penetration (case study: Solar Power Plant in Kupang Sub System)","authors":"D. Barus, R. Dalimi","doi":"10.1109/ICHVEPS47643.2019.9011049","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011049","url":null,"abstract":"Solar Power Plant (SPP) and Wind Power Plant (WPP) are parts of the Renewable Power Plant (REPP) which are quite popular and have been developed and operated widely throughout the world because of its advantages as clean energy, low cost fuel, and increasingly economical investment costs. In the last few years in Indonesia, SPP and WPP have started to be developed in several areas in Indonesia. Based on the Long-Term Planning Document for Electricity Development, it is planned that in 2025 around 23% of the total energy mix in Indonesia will come from REPP. But both types of plants have intermittent/ variable characteristics that can change quickly according to weather conditions and solar intensity which naturally cannot be controlled by the power system operator. This condition is categorized as Variable Renewable Energy (VRE). This intermittent nature has the potential to endanger the power system stability and reliability. One of the main cause is the lack of provisions in the Grid Code that clearly regulates the operation of VRE. This has led to many studies to find specific and appropriate adaptation of the existing Grid Code that are unique to each network based on its own characteristics, the availability of local natural resources, and government policies.This paper presents a brief literature review on the Grid Code that has been applied in Indonesia. This paper also explain the characteristics of SPP. Furthermore, this paper presents comprehensive impact of SPP operations in the Kupang sub-system, in terms of operating patterns and power system stability. This study will be used as a preliminary study in the formulation of the technical parameters of the Indonesian Grid Code Adaptation toward Variable Renewable Energy Penetration.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"74 1","pages":"328-332"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80865328","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/ICHVEPS47643.2019.9011030
A. P. Purnomoadi, D. S. Rahmani, A. Mor, J. Smit, G. Supriyadi
This paper proposes a risk assessment model for Gas Insulated Switchgear (GIS) operating under the tropical conditions. The model is a part of decision support tools at the tactical level of Asset Management in electricity network business. The model used the Asset Health Index (AHI) to estimate the likelihood of failure, while the consequences were defined by the business of a transmission utility in a case study. Risk discussed in the model is risk if a failure occurs in GIS. The output classifies the risk into five levels, namely, Very Low, Low, Moderate, High, and Very High.
{"title":"Risk Assessment Model for GIS Operating under Tropical Conditions","authors":"A. P. Purnomoadi, D. S. Rahmani, A. Mor, J. Smit, G. Supriyadi","doi":"10.1109/ICHVEPS47643.2019.9011030","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011030","url":null,"abstract":"This paper proposes a risk assessment model for Gas Insulated Switchgear (GIS) operating under the tropical conditions. The model is a part of decision support tools at the tactical level of Asset Management in electricity network business. The model used the Asset Health Index (AHI) to estimate the likelihood of failure, while the consequences were defined by the business of a transmission utility in a case study. Risk discussed in the model is risk if a failure occurs in GIS. The output classifies the risk into five levels, namely, Very Low, Low, Moderate, High, and Very High.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"38 1","pages":"272-275"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77841224","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/ICHVEPS47643.2019.9011092
K. M. Tofani, K. Mangunkusumo, N. W. Priambodo, B. S. Munir
Nowadays, smart grids are becoming a reality all over the world. The fundamental of smart grid technology is Advanced Metering Infrastructure (AMI) mainly smart meter communication. This study focuses on the selection of appropriate communication media between Smart meters and Data Concentrator Unit (DCU). Technical review of the performance of communication media from literature studies, field study based on pilot projects, and direct testing of communication media performance is conducted. Financial review is done to observe the cheapest investment and operation and maintenance cost. The optimal smart meter two-ways communication technology will be selected. Each communication will be compared based on communication parameters which are divided into three technology comparison groups, namely: Power Line Communication (PLC), Radio Frequency (RF) non-cellular communication technology, and RF cellular technology. As consideration, the suitable telecommunication media can be selected based on customer characteristic, like geographical condition and customer density.
{"title":"Consideration in Communication Media Selection for Advanced Metering Infrastructure in Indonesia","authors":"K. M. Tofani, K. Mangunkusumo, N. W. Priambodo, B. S. Munir","doi":"10.1109/ICHVEPS47643.2019.9011092","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011092","url":null,"abstract":"Nowadays, smart grids are becoming a reality all over the world. The fundamental of smart grid technology is Advanced Metering Infrastructure (AMI) mainly smart meter communication. This study focuses on the selection of appropriate communication media between Smart meters and Data Concentrator Unit (DCU). Technical review of the performance of communication media from literature studies, field study based on pilot projects, and direct testing of communication media performance is conducted. Financial review is done to observe the cheapest investment and operation and maintenance cost. The optimal smart meter two-ways communication technology will be selected. Each communication will be compared based on communication parameters which are divided into three technology comparison groups, namely: Power Line Communication (PLC), Radio Frequency (RF) non-cellular communication technology, and RF cellular technology. As consideration, the suitable telecommunication media can be selected based on customer characteristic, like geographical condition and customer density.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"7 1","pages":"235-239"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86923249","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/ICHVEPS47643.2019.9011079
Muhammad Sukri Habibi Daulay, U. Khayam
This research discusses the design and testing of the bowtie antenna as a partial discharge sensor (PD). In this design, there are three types of bowtie antennas which are simulated with high frequency structure simulator (HFSS) software with various shapes and sizes, namely double layer bowtie antenna with edge modification, doube layer bowtie antenna with middle slice modification and single layer bowtie antenna with edge modification. The three bowtie antennas are designed to get the frequency of response according to the frequency of PD appearance. The three of bowtie antenna is designed with FR4_epoxy substrate which has dimensions of length and width of the substrate is 160 mm and 54 mm, thickness of 1.6 mm which then process the bowtie antenna will be implemented on printed cicuit board (PCB) material. Antenna characteristics which include return loss (RL), bandwidth and voltage standing wave ratio (VSWR) will be seen from the results based on simulation and measurement results using a vector network analyzer (VNA). Testing of the three bowtie antennas is done using needle-plane electrodes. Then the antenna is connected to the oscilloscope so that the signal captured by the antenna can be detected. The measurement of the three bowtie antennas was carried out at three voltage levels namely 6 kV, 6.5 kV and 7 kV. So, it can be known the PD pattern detected by new design antenna as PD sensor. It can also be known sensitivity of the three antennas as the best in detecting PD signals on each antenna with increasing voltage levels that have been determined and reviewed from the side of the antenna characteristic parameters obtained based on the simulation results and antenna measurement results using VNA.
{"title":"Partial Discharge Pattern Detected by New Design Partial Discharge Sensors","authors":"Muhammad Sukri Habibi Daulay, U. Khayam","doi":"10.1109/ICHVEPS47643.2019.9011079","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011079","url":null,"abstract":"This research discusses the design and testing of the bowtie antenna as a partial discharge sensor (PD). In this design, there are three types of bowtie antennas which are simulated with high frequency structure simulator (HFSS) software with various shapes and sizes, namely double layer bowtie antenna with edge modification, doube layer bowtie antenna with middle slice modification and single layer bowtie antenna with edge modification. The three bowtie antennas are designed to get the frequency of response according to the frequency of PD appearance. The three of bowtie antenna is designed with FR4_epoxy substrate which has dimensions of length and width of the substrate is 160 mm and 54 mm, thickness of 1.6 mm which then process the bowtie antenna will be implemented on printed cicuit board (PCB) material. Antenna characteristics which include return loss (RL), bandwidth and voltage standing wave ratio (VSWR) will be seen from the results based on simulation and measurement results using a vector network analyzer (VNA). Testing of the three bowtie antennas is done using needle-plane electrodes. Then the antenna is connected to the oscilloscope so that the signal captured by the antenna can be detected. The measurement of the three bowtie antennas was carried out at three voltage levels namely 6 kV, 6.5 kV and 7 kV. So, it can be known the PD pattern detected by new design antenna as PD sensor. It can also be known sensitivity of the three antennas as the best in detecting PD signals on each antenna with increasing voltage levels that have been determined and reviewed from the side of the antenna characteristic parameters obtained based on the simulation results and antenna measurement results using VNA.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"2 1","pages":"029-034"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88323896","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/ICHVEPS47643.2019.9011005
H. Gumilang
Since more than 15 years ago, PLN had been using DGA to determine the condition of power transformers whether it is experience arcing, thermal or corona. PLN UIT-JBT applying DGA every semester on 448 units of power transformers which have several rating voltages i.e. 500/150kV, 150/70kV, 150/20kV and 70/20kV. In order to understand what should PLN do to the power transformer based on DGA test, some standards are used as reference to do further action which are IEC 60599 and IEEE C57-104. IEC 60599 recommend any electricity utilities that had a huge number of DGA result to generate typical gas concentration values and typical rate of gas increase as an internal standard to decide which transformer are defined to be normal in operation or abnormal in operation so will be easier for utility to plan a further treatment to the transformers. This paper eventually will describe the comparison of typical normal boundaries of gas value on IEC, IEEE and PLN typical data. Typical rate of gas increase that been calculated can also be used as a reference to determine which power transformer had severe internal faults. Both typical gas concentration values and typical rate of gas increase using 90% of test data population as a range of normal operation, while the other 10% considered as abnormal operation. From the comparison among IEEE, IEC and PLN typical data it was known that the typical values for normal condition are almost at the same level, but only C2H2 gas where IEC value have the highest which is 20 ppm. In the end by creating a new reference to interpret DGA test result using our own data’s, which it is came from our system, whether it is on typical gas concentration values or typical rate of gas increase, we could have more confidence and higher accuracy to understand what is actually happened on our power transformers.
自15年前以来，PLN一直在使用DGA来确定电力变压器的状态，无论是经历电弧，热还是电晕。PLN unit - jbt每学期对额定电压为500/150kV、150/70kV、150/20kV、70/20kV的448台电力变压器应用DGA。为了了解基于DGA测试的电力变压器PLN应该做些什么，参考IEC 60599和IEEE C57-104标准来做进一步的工作。IEC 60599建议任何有大量DGA结果的电力公司产生典型的气体浓度值和典型的气体增长率作为内部标准，以确定哪些变压器被定义为正常运行或异常运行，以便公用事业公司更容易计划对变压器的进一步处理。本文最后将描述IEC、IEEE和PLN典型数据上气值的典型法向边界的比较。计算出的典型气体增加率也可作为判断哪些电力变压器存在严重内部故障的参考。典型气体浓度值和典型气体增长率均采用90%的测试数据集作为正常操作范围，其余10%作为异常操作范围。从IEEE、IEC和PLN的典型数据比较可知，正常情况下的典型值几乎相同，但只有C2H2气体的IEC值最高，为20 ppm。最后，通过建立一个新的参考来解释DGA测试结果，无论是典型的气体浓度值还是典型的气体增长速率，我们都可以更有信心和更高的准确性来了解我们的电力变压器实际发生了什么。
{"title":"Typical Gas Concentration Values and Typical Rate of Gas Increase on DGA Test in PLN UIT-JBT","authors":"H. Gumilang","doi":"10.1109/ICHVEPS47643.2019.9011005","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011005","url":null,"abstract":"Since more than 15 years ago, PLN had been using DGA to determine the condition of power transformers whether it is experience arcing, thermal or corona. PLN UIT-JBT applying DGA every semester on 448 units of power transformers which have several rating voltages i.e. 500/150kV, 150/70kV, 150/20kV and 70/20kV. In order to understand what should PLN do to the power transformer based on DGA test, some standards are used as reference to do further action which are IEC 60599 and IEEE C57-104. IEC 60599 recommend any electricity utilities that had a huge number of DGA result to generate typical gas concentration values and typical rate of gas increase as an internal standard to decide which transformer are defined to be normal in operation or abnormal in operation so will be easier for utility to plan a further treatment to the transformers. This paper eventually will describe the comparison of typical normal boundaries of gas value on IEC, IEEE and PLN typical data. Typical rate of gas increase that been calculated can also be used as a reference to determine which power transformer had severe internal faults. Both typical gas concentration values and typical rate of gas increase using 90% of test data population as a range of normal operation, while the other 10% considered as abnormal operation. From the comparison among IEEE, IEC and PLN typical data it was known that the typical values for normal condition are almost at the same level, but only C2H2 gas where IEC value have the highest which is 20 ppm. In the end by creating a new reference to interpret DGA test result using our own data’s, which it is came from our system, whether it is on typical gas concentration values or typical rate of gas increase, we could have more confidence and higher accuracy to understand what is actually happened on our power transformers.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"49 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":"91472548","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/ICHVEPS47643.2019.9011153
Nur Al Anshari Munir, Yogasmana Al Mustafa, Fransileo Siagian
Power transformer is one of the most important and vital equipment in the substation. Power Transformers in Indonesia are mostly designed to refer to IEC standards. according to the IEC standard, power transformers are used at an ambient temperature of 20 °C. While as a tropical country, the average temperature in Indonesia is around 30 °C. Environmental temperature differences in design and real conditions make a transformer very risky to operate to reach its maximum capacity. Because of this, the transformer's operating must be adjusted. With a higher ambient temperature plus a higher load, the ageing of the transformer is also faster. The age of the transformer can be affected by the insulation of the winding and the condition of oil transformers.This research studies the effect of loading and ambient temperature which can reduce the lifetime of the transformer. The transformer which is the object of the research is 3rd power transformer in the Cikupa Substation.The results showed a decrease in transformer loading capacity at ambient temperatures above 20 °C. with the rate of increase 1,06% - 1,2% for ONAN condition and 0,87% - 0,96% for ONAF condition in the ambient temperature range 21 °C - 35 °C.
{"title":"Analysis of The Effect of Ambient Temperature and Loading on Power Transformers Ageing (Study Case of 3rd Power Transformer in Cikupa Substation)","authors":"Nur Al Anshari Munir, Yogasmana Al Mustafa, Fransileo Siagian","doi":"10.1109/ICHVEPS47643.2019.9011153","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011153","url":null,"abstract":"Power transformer is one of the most important and vital equipment in the substation. Power Transformers in Indonesia are mostly designed to refer to IEC standards. according to the IEC standard, power transformers are used at an ambient temperature of 20 °C. While as a tropical country, the average temperature in Indonesia is around 30 °C. Environmental temperature differences in design and real conditions make a transformer very risky to operate to reach its maximum capacity. Because of this, the transformer's operating must be adjusted. With a higher ambient temperature plus a higher load, the ageing of the transformer is also faster. The age of the transformer can be affected by the insulation of the winding and the condition of oil transformers.This research studies the effect of loading and ambient temperature which can reduce the lifetime of the transformer. The transformer which is the object of the research is 3rd power transformer in the Cikupa Substation.The results showed a decrease in transformer loading capacity at ambient temperatures above 20 °C. with the rate of increase 1,06% - 1,2% for ONAN condition and 0,87% - 0,96% for ONAF condition in the ambient temperature range 21 °C - 35 °C.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"23 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90238686","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}
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