2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)最新文献_第8页

An intelligent system for acoustic inspection of outdoor insulators 一种用于室外绝缘体声学检测的智能系统

2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2017-11-01 DOI: 10.1109/CATCON.2017.8280197

A. El-Hag, S. Mukhopadhyay, Kamil Al-Ali, AbdulRahman Al-Saleh

引用次数: 9

Electric fields at thermal maximum voltage (DC) in multi-layer dielectrics in plane-parallel geometry 平面平行几何中多层介质中热最大电压(DC)的电场

2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2017-11-01 DOI: 10.1109/CATCON.2017.8280240

Purnabhishek Muppala, C. Reddy

引用次数: 4

Selection of sensor number and locations in intelligent greenhouse 智能温室中传感器数量和位置的选择

2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2017-11-01 DOI: 10.1109/CATCON.2017.8280184

S. Lata, H. Verma

{"title":"Selection of sensor number and locations in intelligent greenhouse","authors":"S. Lata, H. Verma","doi":"10.1109/CATCON.2017.8280184","DOIUrl":"https://doi.org/10.1109/CATCON.2017.8280184","url":null,"abstract":"For monitoring and control of temperature inside an intelligent greenhouse, a network of wireless sensors is generally a better option rather than using a single sensor. Random location of sensors will yield an incorrect measurement of temperature profile inside the greenhouse. In addition, it will unnecessarily increase the number of sensors and the complexity of the wireless sensor network. In this paper, two approaches namely equal sensor spacing method and trial and error method for the selection of number and locations of sensors in a greenhouse have been proposed successfully investigated. In the equal sensor spacing method, the percentage error reduces from 1.3354% to 0.1559% as the number of sensors is increased from 3 to 10. Although the error corresponding to ten sensors is quite small, the large number of sensors would make the temperature measurement system very expensive. In case of trial and error method the least %error comes out to be 0.0658% corresponding to just five sensors placed at 1.0 m, 7.0 m, 11.0 m, 15.0 m and 19 m from the door. It is further observed that for this approach, increasing the number of sensors does not necessarily reduce the %error. Thus an optimal number of sensors at optimized locations result from this approach. It can be used for any temperature profile and applied along both the dimensions i.e. length and breadth of greenhouse.","PeriodicalId":250717,"journal":{"name":"2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133178765","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}

引用次数: 4

Dynamic condition vector assessment method for electric power equipment of overall process: Novel and necessary technical approach of condition-based-assessment 电力设备全过程动态状态矢量评估方法:基于状态评估的新颖必要技术途径

2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2017-11-01 DOI: 10.1109/CATCON.2017.8280241

Yang Liu, Weidong Qi, Jingfeng Wu, L. Pu, Sen Wang, Yanhua Han, Chuankai Yang, Lin Cheng, Wei Liu, Xu Li, Liangshu Li, Yiqing Shi

引用次数: 4

Fuzzy approach for residual life assessment of paper insulation 纸绝缘剩余寿命评定的模糊方法

2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2017-11-01 DOI: 10.1109/CATCON.2017.8280178

Md. Manzar Nezami, S. A. Wani, S. A. Khan, N. Khera, Md Ajmal Khan

引用次数: 7

A generalized algorithm to compute response of partial discharge in a transformer winding using its equivalent ladder network 利用等效阶梯网络计算变压器绕组局部放电响应的一种广义算法

2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2017-11-01 DOI: 10.1109/CATCON.2017.8280198

Mithun Mondal, G. Kumbhar

引用次数: 4

Power loss minimization in electrical power distribution networks by use of hybrid reconfiguration method 基于混合重构方法的配电网功率损耗最小化

2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2017-11-01 DOI: 10.1109/CATCON.2017.8280243

Birender Singh, S. Chauhan, C. Reddy

引用次数: 2

Evaluation of electrical insulation characteristics of polyamide-imide film using masurement results of space charge distributions with an applied square wave voltage 利用方波电压下空间电荷分布的测量结果评价聚酰胺-亚胺薄膜的电绝缘特性

2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2017-11-01 DOI: 10.1109/CATCON.2017.8280186

M. Mima, T. Iwata, H. Miyake, Y. Tanaka

{"title":"Evaluation of electrical insulation characteristics of polyamide-imide film using masurement results of space charge distributions with an applied square wave voltage","authors":"M. Mima, T. Iwata, H. Miyake, Y. Tanaka","doi":"10.1109/CATCON.2017.8280186","DOIUrl":"https://doi.org/10.1109/CATCON.2017.8280186","url":null,"abstract":"In the automotive industry, a reduction in CO2 and a low fuel consumption are required from the environmental point of view. According to such demand, electric vehicle using an inverter fed motor is developed and it used widely. However, partial discharge is generated in motor winding, when the higher voltage is applied to the windings. Thereby, it may induce a fatal breakdown in the insulating coating of the windings. Judging from a published report, it is said that a decrease of partial discharge inception voltage(PDIV) is related with space charge accumulation in the insulating coating. However, only few studies about the space charge accumulation characteristic in the insulating coating of the windings has been carried out in the past. In this study, we tried to apply a new space charge distribution measurement using Pulsed Electro-Acoustic(PEA) method to evaluate the insulating characteristics in such layers. In this measurement, the space charge distribution is measured with a square wave or a AC voltage with a contain frequency. By performing the measurement, we tried to analyze the mechanism of the space charge accumulation in polyamide-imide(PAI) film with applying the square wave and AC voltages. Also, we tried to investigate the influence of application of the square wave and AC voltage on insulation lifetime of PAI film. From the measurement results, it was found that the square wave voltage application was much affected to the PAI film degradation than the application of AC voltage.","PeriodicalId":250717,"journal":{"name":"2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116502423","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}

引用次数: 7

Selection of fault discriminators for unit protection of monopolar HVDC transmission system 单极直流输电系统单元保护故障鉴别器的选择

2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2017-11-01 DOI: 10.1109/CATCON.2017.8280177

Soma Deb, H. Verma

引用次数: 4

Design, development and installation of pulsed high current test facility 脉冲大电流测试设备的设计、开发和安装

2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Pub Date : 2017-11-01 DOI: 10.1109/CATCON.2017.8280238

E. Mishra, R. Verma, P. Deb, P. Dhang, S. Swamy, M. Meena, K. Sagar, A. Sharma

{"title":"Design, development and installation of pulsed high current test facility","authors":"E. Mishra, R. Verma, P. Deb, P. Dhang, S. Swamy, M. Meena, K. Sagar, A. Sharma","doi":"10.1109/CATCON.2017.8280238","DOIUrl":"https://doi.org/10.1109/CATCON.2017.8280238","url":null,"abstract":"Four high energy capacitor modules (of 200kJ each) have been connected in parallel to achieve high current (2.4MA) pulse (12–15μs) for conducting various pulsed power experiments. Railgap switches are being utilized in synchronous mode to transfer energy from high energy capacitor modules. The Railgap switches are operated in multichannel mode that enables large charge transfer in distributed mode with minimum switch inductance. Multichannel operation helps in achieving lower jitter and conduction delay along with minimum electrode erosion that is essential for the synchronized operation of switches. The initiation of several simultaneous arc channels along the electrode length in Railgap switch has a strong dependency on the gap voltage and rate at which the electric field changes within the gap. High trigger voltage and fast rate of rise (dV/dt >5kV/ns) are essential for existing Railgap switches for functioning in multichannel mode. Temporal characteristics of trigger pulse deteriorate when multiple Railgap switches are connected in parallel due to capacitive loading. To avoid the problem of capacitive loading, coaxial cable based pulse generator is designed and developed for synchronized, multi-channel discharge of all four modules. At 30kV of primary charging, the pulse generator produces around 60kV output pulse of 100ns duration (FWHM) with a rise time of better than 10ns (10%–90%) that correspond to dV/dt of >5kV/ns. At a charging voltage of 15kV, peak current of ∼1.3MA has been delivered to load.","PeriodicalId":250717,"journal":{"name":"2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116589499","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}

引用次数: 0