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Sundara Rajan, J.
- Emerging Applications of Polymers to Energy Sector
Abstract Views :203 |
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Authors
Affiliations
1 Centre for Collaborative and Advanced Research, Central Power Research Institute, Bengaluru, IN
1 Centre for Collaborative and Advanced Research, Central Power Research Institute, Bengaluru, IN
Source
Power Research, Vol 4, No 2 (2008), Pagination: 119-124Abstract
This paper reviews many new and emerging areas of polymer science and its application to power engineering. Electrical and electronic devices make extensive use of polymers in applications ranging from connectors, sockets and switches to bushings, spacers, control panels, supports etc. New areas like electro-active polymers and conductive polymers are finding many applications in everyday use. Conductive polymers unlock the potential to improve a variety of items from electronics to electrical engineering. Hydrogen fuel cells hold promise for the future. This paper highlights the importance of developments in polymer science and its relevance to power engineering.Keywords
Polymers, Fuel Cells, Nanocomposites, Fibres, Conducting Polymers.
- Electron Beam Cross-Linking: An Emerging Technology for Processing Electrical Wires, Cables and Accessories
Abstract Views :190 |
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Authors
Affiliations
1 Central Power Research Institute, Bengaluru, IN
1 Central Power Research Institute, Bengaluru, IN
Source
Power Research, Vol 4, No 2 (2008), Pagination: 213-220Abstract
Polymers are extensively used in various power engineering applications for its excellent dielectric and mechanical characteristics. Electron beam technology lends further support for expanding the application of polymers in power engineering. The use of electron beam cross-linking of polymers in preference to the conventional chemical cross-linking processes has several advantages. This paper discusses the advantages of this technology with particular reference to power cable and accessories for termination and joints. The improvements in dielectric, mechanical and thermal characteristics are emphasised to highlight the need for increasing the use of this technology for critical power engineering applications.Keywords
No Keywords.- A study on copper corrosion and its effect on dielectric properties of paper oil insulation of transformers using simulation and laboratory experiments
Abstract Views :190 |
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Authors
Affiliations
1 Senior Research Fellow, R&D Management Division, Central Power Research Institute, Bangalore - 560080, IN
2 Joint Director, R&D Management Division, Central Power Research Institute, Bangalore - 560080, IN
1 Senior Research Fellow, R&D Management Division, Central Power Research Institute, Bangalore - 560080, IN
2 Joint Director, R&D Management Division, Central Power Research Institute, Bangalore - 560080, IN
Source
Power Research, Vol 12, No 1 (2016), Pagination: 151-158Abstract
This study investigates the impact of copper sulphide which is formed due to corrosive sulphur in mineral oil on dielectric properties of paper oil insulation of model transformer windings. The effect of copper sulphide on electric stress distribution is explained using FEM based electric field computations. frequency domain spectroscopy and insulation resistance measurements were carried out on the prototype transformer windings under conditions of copper corrosion at different temperatures and the variations in tan δ, real and imaginary part of complex permittivity (ε’, ε”), insulation resistance, and polarization index are discussed.Keywords
Copper sulphide, DBDS, paper oil insulation, transformer, tan δ, permittivity, insulation resitance, polarization index- Electric and magnetic field simulation of polymer nano-composites for electromagnetic shielding effectiveness
Abstract Views :179 |
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Authors
Affiliations
1 Central Power Research Institute, Bangalore - 560080, Karnataka, IN
2 Department of Electrical and Electronics Engineering, Siddaganga Institute of Technology, Tumkur - 572103, Karnataka, IN
3 Department EET Department, The Energy and Research Institute, Bangalore - 560071, Karnataka, IN
1 Central Power Research Institute, Bangalore - 560080, Karnataka, IN
2 Department of Electrical and Electronics Engineering, Siddaganga Institute of Technology, Tumkur - 572103, Karnataka, IN
3 Department EET Department, The Energy and Research Institute, Bangalore - 560071, Karnataka, IN
Source
Power Research, Vol 12, No 1 (2016), Pagination: 165-172Abstract
This paper discusses correlation between results of electric and magnetic field simulation using Finite Element Method (FEM) and laboratory measurements of electromagnetic shielding effectiveness. The study shows that the addition of the MWCNT filler to HDPE base matrix tends to increase the electrical conductivity and helps in reduction of the Electromagnetic field in terms of radiated emission. With the increase in the weight percentage of MWCNT filler, improvements in terms of reduction in electromagnetic field is achieved. Addition of nano nickel to the HDPE improves the shielding efficiency. The results of this study has helped in achieving the optimum filler concentration in HDPE nano composite for improved EMI Shielding effectivenessKeywords
Finite element method, electromagnetic interference, electrical conductivity, nano composites, EMI shielding effectiveness- Cryogenic cooling aspects of hts power cables - A review
Abstract Views :178 |
PDF Views:0
Authors
Affiliations
1 Cryogenic Engineering Centre, Indian Institute of Technology, Kharagpur, West Bengal - 721302, IN
2 Central Power Reseach Institute, Bangalore - 560080, IN
1 Cryogenic Engineering Centre, Indian Institute of Technology, Kharagpur, West Bengal - 721302, IN
2 Central Power Reseach Institute, Bangalore - 560080, IN
Source
Power Research, Vol 11, No 2 (2015), Pagination: 311-322Abstract
HTS (High Temperature Superconducting) cable has the ability of transmitting electrical power over long distances in an economical way, with improved stability and reliability. HTS Cable also provides a compact and low-loss transmission power line, in comparison with the conventional cable made out of copper or aluminium. The use of HTS tapes facilitates the cable operations with liquid nitrogen cooling system. A wide variety of HTS Cables with various cooling arrangements have been designed and developed. Their performance has been tested to obtain various thermo-hydaraulic and electrical data by installing the cables of different lengths in transmission and distribution networks. This paper reviews the cryogenic cooling aspects of previous and ongoing projects on superconducting cables for electrical power transmission around the world.Keywords
Cryogenic cooling system, HTS cable, liquid nitrogen, termination- Assessment of Stator Winding Insulation by Spectroscopic and Thermo-Analytical Techniques
Abstract Views :192 |
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Authors
Affiliations
1 Central Power Research Institute, Bangalore, IN
2 PES College of Engineering, Mandya, IN
1 Central Power Research Institute, Bangalore, IN
2 PES College of Engineering, Mandya, IN
Source
Power Research, Vol 5, No 2 (2009), Pagination: 1-10Abstract
No Abstract.Keywords
No Keywords.- Assessment of Stator Winding Insulation. Part 1 - Review of Deterioration Mechanisms and Condition Monitoring Techniques
Abstract Views :201 |
PDF Views:0
Authors
Affiliations
1 Central Power Research Institute, Bangalore, IN
2 PES College of Engineering, Mandya, IN
1 Central Power Research Institute, Bangalore, IN
2 PES College of Engineering, Mandya, IN
Source
Power Research, Vol 6, No 2 (2010), Pagination: 61-76Abstract
This paper reviews the main ageing and failure mechanisms of stator winding and methods for extending the useful life of the machine. The symptoms for each failure mechanism are discussed and an overview of various electrical diagnostic techniques for condition assessment of stator winding insulation is presentedKeywords
Stator Winding Insulation, Degradation, Condition Monitoring Techniques.- Development of a Self-Powered Temperature Monitoring Wireless Node for Transmission Lines for Smart Grid Application
Abstract Views :189 |
PDF Views:0
Authors
Affiliations
1 CPRI, Bangalore - 560080, Karnataka, IN
1 CPRI, Bangalore - 560080, Karnataka, IN
Source
Power Research, Vol 14, No 1 (2018), Pagination: 93-103Abstract
Increasing the safe operating temperature limits of the transmission line, by a small percentage above the present safe operating temperature limit can help in transmission of more power over existing lines and it would also help in avoiding huge investment and loss of time due to regulatory processes for establishment of new lines. Since the operating temperature is a critical parameter for transmission of the power, low cost sensors on high tension lines would enable data acquisition on real time basis for faster decision making. This is an alternative power source to the battery or solar panels. The results of laboratory experiments and data on simulation for the developed self-powered temperature, sag and tension monitoring system are presented and discussed in this paper. A comparison of two different methods of computation of temperature based on frequency and amplitude of output signal and cost benefit of the different methods of powering the wireless sensor nodes for transmission line application are also discussed.Keywords
Energy Harvesting, Temperature Monitoring System (TMS), Thermal Limit, Sensitivity, Xbiee- Development of Epoxy with Nano and Micro Fillers for Core Insulation of Composite Insulators
Abstract Views :240 |
PDF Views:1
Authors
Affiliations
1 JSS Research Foundation, JSSTIC, Mysuru, Maharaja Institute of Technology, Mandya – 571438, Karnataka, IN
2 Department of Electronics and Communication Engineering, Sri Jayachamarajendra College of Engineering, Mysuru – 570006, Karnataka, IN
3 Consultant-Insulation Engineering and Academic Counsellor, Bengaluru, Karnataka, IN
1 JSS Research Foundation, JSSTIC, Mysuru, Maharaja Institute of Technology, Mandya – 571438, Karnataka, IN
2 Department of Electronics and Communication Engineering, Sri Jayachamarajendra College of Engineering, Mysuru – 570006, Karnataka, IN
3 Consultant-Insulation Engineering and Academic Counsellor, Bengaluru, Karnataka, IN
Source
Power Research, Vol 15, No 2 (2019), Pagination: 122-129Abstract
Epoxy composites are extensively used in different applications in high voltage engineering. However, the use of these composites for outdoor insulators has been challenging due to complexities arising out of the conditions of operation of the insulators. Pollution performance of composite insulators is influenced by the nature of the pollution existing, in addition to the combination of stresses acting on the insulators. The use of nano and micro combination of fillers in the epoxy composites is an ideal choice for achieving a proper balance of electrical, thermal and mechanical properties. This paper considers the merits of using combination of micro and nano fillers in an epoxy matrix to demonstrate that such insulation systems would provide better alternatives to the conventional epoxy systems for use as central rod in composite insulation systems for severe contaminated conditions.Keywords
Epoxy Composites, Nano and Micro Fillers, Outdoor Insulators.References
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