Pub Date : 1900-01-01DOI: 10.1109/EEIC.2005.1566317
B. K. Fussell
This paper discusses the modeling and analysis of a 120 volt, single-phase AC brushless motor used in an aquarium pump. Single phase motors are used for low volume pumps to simplify the design and to reduce cost The basic operation of the motor is explained. The magnetic flux paths are then described and a circuit model is developed for the two tooth motor. From this model, detent and energized torque are derived using the change in magnetic energy with rotor angle. A mechanical and electrical dynamic simulation is then used to investigate the torque and rotor position during startup and steady-state operation
{"title":"Analysis of an AC brushless air pump motor","authors":"B. K. Fussell","doi":"10.1109/EEIC.2005.1566317","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566317","url":null,"abstract":"This paper discusses the modeling and analysis of a 120 volt, single-phase AC brushless motor used in an aquarium pump. Single phase motors are used for low volume pumps to simplify the design and to reduce cost The basic operation of the motor is explained. The magnetic flux paths are then described and a circuit model is developed for the two tooth motor. From this model, detent and energized torque are derived using the change in magnetic energy with rotor angle. A mechanical and electrical dynamic simulation is then used to investigate the torque and rotor position during startup and steady-state operation","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116844680","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 : 1900-01-01DOI: 10.1109/EEIC.2005.1566304
M. Pellegrino
Much of the present-day electrical manufacturing and coil winding equipment has application software embedded in it. This embedded application software performs much of the user-level functionality of the equipment and generally has favorable tax treatment at both the state and federal level. Companies that properly recognize the value of this embedded application software can utilize the favorable tax treatment of such software to lower the equipment's effective cost and thereby create value. Vendors that market such equipment can restructure their customer transactions so that their customers can more easily claim these tax benefits. This increases a customer's return on investment for the equipment, which translates to higher vendor revenues
{"title":"Cutting taxes for electrical manufacturing and coil winding equipment companies","authors":"M. Pellegrino","doi":"10.1109/EEIC.2005.1566304","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566304","url":null,"abstract":"Much of the present-day electrical manufacturing and coil winding equipment has application software embedded in it. This embedded application software performs much of the user-level functionality of the equipment and generally has favorable tax treatment at both the state and federal level. Companies that properly recognize the value of this embedded application software can utilize the favorable tax treatment of such software to lower the equipment's effective cost and thereby create value. Vendors that market such equipment can restructure their customer transactions so that their customers can more easily claim these tax benefits. This increases a customer's return on investment for the equipment, which translates to higher vendor revenues","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132873394","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 : 1900-01-01DOI: 10.1109/EEIC.2005.1566264
M. R. Naghashan, D. Shoar
Temperature rise of insulation can be due to the blockage of the hollow sub-conductors in water-cooled bars. The objective of this project is to make a software simulator to analyze the problem in water-cooled generators in Iran. An experimental setup is constructed to recognize the hollow sub-conductor blockage and its effect on the permissible load current of the generator bar. Results of experiments are used to develop an evaluation software model. The model is applied in air and in hydrogen medium. Measured temperatures of various points on the generator bar show that the hot spot of the insulation can not be detected easily by normal slot RTDs in the machine
{"title":"Investigation of temperature rise and permissible load current of water-cooled generators with blockage of hollow sub-conductors","authors":"M. R. Naghashan, D. Shoar","doi":"10.1109/EEIC.2005.1566264","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566264","url":null,"abstract":"Temperature rise of insulation can be due to the blockage of the hollow sub-conductors in water-cooled bars. The objective of this project is to make a software simulator to analyze the problem in water-cooled generators in Iran. An experimental setup is constructed to recognize the hollow sub-conductor blockage and its effect on the permissible load current of the generator bar. Results of experiments are used to develop an evaluation software model. The model is applied in air and in hydrogen medium. Measured temperatures of various points on the generator bar show that the hot spot of the insulation can not be detected easily by normal slot RTDs in the machine","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133145240","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 : 1900-01-01DOI: 10.1109/EEIC.2005.1566306
Jeff Major, Bowling Green
The Electric Vehicle Institute, College of Technology at Bowling Green State University in Ohio has developed a diesel/electric hybrid propulsion system. This system has been installed in a 27 passenger shuttle bus. This bus has recently been put into shuttle service on campus in order to collect application data, receive feedback from professional operators and provide a demonstration of the suitability of the system for service. This paper describes the hybrid system, explains the operation, and elaborates on the reason for choosing the electrical energy storage system type, ultracapacitors
{"title":"Hybrid shuttle bus using ultracapacitors","authors":"Jeff Major, Bowling Green","doi":"10.1109/EEIC.2005.1566306","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566306","url":null,"abstract":"The Electric Vehicle Institute, College of Technology at Bowling Green State University in Ohio has developed a diesel/electric hybrid propulsion system. This system has been installed in a 27 passenger shuttle bus. This bus has recently been put into shuttle service on campus in order to collect application data, receive feedback from professional operators and provide a demonstration of the suitability of the system for service. This paper describes the hybrid system, explains the operation, and elaborates on the reason for choosing the electrical energy storage system type, ultracapacitors","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124308044","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 : 1900-01-01DOI: 10.1109/EEIC.2005.1566314
M.A. Afflerbach
The calculation of temperature rise in self-cooled transformers is one of the most important calculations to determine longevity of a transformer. It is also one of the toughest concepts for many transformer Engineers to understand. The elusiveness of the concept originates because transformer designers are predominantly Electrical Engineers and most of the skills needed to evaluate temperature rise are mechanical in nature. This paper will discuss the major modes of thermal transfer in self-cooled coils. Models will be developed and procedures explained to apply these techniques to numerous core and coil geometries. The models in this paper can be applied to a broad size range of units from small PC board mount all the way in excess of 5000 KVA. The author has used these methods to predict temperature rise in units as small as a 1/2" cube, as large in diameter as 84" and as long as 48"
{"title":"Method of calculating temperature rise in self cooled transformers","authors":"M.A. Afflerbach","doi":"10.1109/EEIC.2005.1566314","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566314","url":null,"abstract":"The calculation of temperature rise in self-cooled transformers is one of the most important calculations to determine longevity of a transformer. It is also one of the toughest concepts for many transformer Engineers to understand. The elusiveness of the concept originates because transformer designers are predominantly Electrical Engineers and most of the skills needed to evaluate temperature rise are mechanical in nature. This paper will discuss the major modes of thermal transfer in self-cooled coils. Models will be developed and procedures explained to apply these techniques to numerous core and coil geometries. The models in this paper can be applied to a broad size range of units from small PC board mount all the way in excess of 5000 KVA. The author has used these methods to predict temperature rise in units as small as a 1/2\" cube, as large in diameter as 84\" and as long as 48\"","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126126913","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 : 1900-01-01DOI: 10.1109/EEIC.2005.1566325
W. Sommerville, J. Gover, R. Sanchez, J. Bou
In a current viewing transformer (CVT), current flows through a wire that is surrounded by a toroid-shaped core on which a secondary is wound. The magnetic field associated with this primary current propagates as a wave and can couple into the secondary circuit; however, it moves as a diffusion front through the core material. Modeling of the diffusion of the magnetic field through the core determined that it affects the magnitude and time signature of the voltage induced in the secondary winding when the primary current is produced by a capacitor discharge. During the quarter cycle rise time (227 ns) of the current pulse in the primary, a step response to an incident magnetic field would yield 95.57 percent of the steady state magnetic flux. Since the voltage induced in the CVT secondary is proportional to the time derivative of the magnetic flux, time delay would further distort the CVT current measurement
{"title":"Modeling of magnetic field diffusion phenomena in a CVT","authors":"W. Sommerville, J. Gover, R. Sanchez, J. Bou","doi":"10.1109/EEIC.2005.1566325","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566325","url":null,"abstract":"In a current viewing transformer (CVT), current flows through a wire that is surrounded by a toroid-shaped core on which a secondary is wound. The magnetic field associated with this primary current propagates as a wave and can couple into the secondary circuit; however, it moves as a diffusion front through the core material. Modeling of the diffusion of the magnetic field through the core determined that it affects the magnitude and time signature of the voltage induced in the secondary winding when the primary current is produced by a capacitor discharge. During the quarter cycle rise time (227 ns) of the current pulse in the primary, a step response to an incident magnetic field would yield 95.57 percent of the steady state magnetic flux. Since the voltage induced in the CVT secondary is proportional to the time derivative of the magnetic flux, time delay would further distort the CVT current measurement","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124165515","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 : 1900-01-01DOI: 10.1109/EEIC.2005.1566253
Wei Wang, Changyu Li, Chengrong Li, Bin Zheng, Luhua Zhang
On-site partial discharge detection on XLPE cables accessories is very difficult because of pulse noise interference, such as pulse interference created by automobile ignition coils on the street, etc. A suitable solution for the monitoring of cable accessories during operation is a sensitive on-site PD detection method. This can be realized in an advantageous way with combinatorial sensors, an antenna sensor, a UHF sensor, and two VHF split-core PD sensors. These sensors are not connected to the high voltage directly, a UHF sensor can be placed near the cable joint and two split-core sensors can be installed on both sides of the cable joint easily and safely. The detection making several windows in the time domain towards multiple wide-band pulse signals can achieve reliable discrimination of real internal PD and external noise under noisy on site conditions. More than twenty cases of on-site PD detection for HV XLPE cables have been proven this way. This method has high detection sensitivity and high noise recognition ability
{"title":"On site PD detection on XLPE cable accessories","authors":"Wei Wang, Changyu Li, Chengrong Li, Bin Zheng, Luhua Zhang","doi":"10.1109/EEIC.2005.1566253","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566253","url":null,"abstract":"On-site partial discharge detection on XLPE cables accessories is very difficult because of pulse noise interference, such as pulse interference created by automobile ignition coils on the street, etc. A suitable solution for the monitoring of cable accessories during operation is a sensitive on-site PD detection method. This can be realized in an advantageous way with combinatorial sensors, an antenna sensor, a UHF sensor, and two VHF split-core PD sensors. These sensors are not connected to the high voltage directly, a UHF sensor can be placed near the cable joint and two split-core sensors can be installed on both sides of the cable joint easily and safely. The detection making several windows in the time domain towards multiple wide-band pulse signals can achieve reliable discrimination of real internal PD and external noise under noisy on site conditions. More than twenty cases of on-site PD detection for HV XLPE cables have been proven this way. This method has high detection sensitivity and high noise recognition ability","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122796154","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 : 1900-01-01DOI: 10.1109/EEIC.2005.1566302
W. Scheller
Outsourcing of goods and services presents a significant challenge to domestic companies. Engaging in outsourcing presents a company with significant costs and risks which are often not fully analyzed prior to the outsourcing decision. Despite the reversal in some foreign factories of the principles of Lean, judicious use of Lean principles and automation can make domestic production not only competitive with outsourcing, but has allowed some factories and companies to recapture outsourced production
{"title":"Remaining competitive in a world of outsourcing","authors":"W. Scheller","doi":"10.1109/EEIC.2005.1566302","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566302","url":null,"abstract":"Outsourcing of goods and services presents a significant challenge to domestic companies. Engaging in outsourcing presents a company with significant costs and risks which are often not fully analyzed prior to the outsourcing decision. Despite the reversal in some foreign factories of the principles of Lean, judicious use of Lean principles and automation can make domestic production not only competitive with outsourcing, but has allowed some factories and companies to recapture outsourced production","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132595762","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 : 1900-01-01DOI: 10.1109/EEIC.2005.1566335
M. Jackson, G. Robinson
There is a plethora of micro and nanofabrication processes that have been developed over the past twenty years for use in the electrical and electronic sectors. Processes such as optical lithography, X-ray lithography, LiGA, selective laser sintering, laser micromachining, wet and dry plasma etching, casting, molding etc are already well established. However, newly emerging processes such as laser nanofabrication, atomic force microscopy, dip pen nanolithography, diamond nanogrinding etc, have yet to realize their potential. The future of micro and nanomanufacturing lies in the ability to convert micro and nanofabrication techniques into mass production manufacturing processes where small-scale products can be economically manufactured in a short period of time. This may be achieved by combining micro and nanoscale processes, or by combining 'top down' and 'bottom up' manufacturing techniques. The development of so-called hybrid manufacturing processes is set to take center stage in the future development of micro and nanomanufacturing processes. This paper will focus on current developments in the field of micro and nanomanufacturing for electrical and electronic manufacturing industries
{"title":"Emerging micro and nanomanufacturing processes for electrical and electronic engineering applications","authors":"M. Jackson, G. Robinson","doi":"10.1109/EEIC.2005.1566335","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566335","url":null,"abstract":"There is a plethora of micro and nanofabrication processes that have been developed over the past twenty years for use in the electrical and electronic sectors. Processes such as optical lithography, X-ray lithography, LiGA, selective laser sintering, laser micromachining, wet and dry plasma etching, casting, molding etc are already well established. However, newly emerging processes such as laser nanofabrication, atomic force microscopy, dip pen nanolithography, diamond nanogrinding etc, have yet to realize their potential. The future of micro and nanomanufacturing lies in the ability to convert micro and nanofabrication techniques into mass production manufacturing processes where small-scale products can be economically manufactured in a short period of time. This may be achieved by combining micro and nanoscale processes, or by combining 'top down' and 'bottom up' manufacturing techniques. The development of so-called hybrid manufacturing processes is set to take center stage in the future development of micro and nanomanufacturing processes. This paper will focus on current developments in the field of micro and nanomanufacturing for electrical and electronic manufacturing industries","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133820117","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 : 1900-01-01DOI: 10.1109/eeic.2005.1566338
C. Silva
Cochlear implants are an effective way to enable people with severe or profound hearing loss to be able to hear. It can help a person with profound hearing loss to function with people and places where hearing may be required. Cochlear implants are a fine solution for severe to profound hearing loss, but there are problems that may accrue, and other solutions that need to be considered before a person makes the decision to get a cochlear implant for his or herself or a loved one
{"title":"Cochlear implants","authors":"C. Silva","doi":"10.1109/eeic.2005.1566338","DOIUrl":"https://doi.org/10.1109/eeic.2005.1566338","url":null,"abstract":"Cochlear implants are an effective way to enable people with severe or profound hearing loss to be able to hear. It can help a person with profound hearing loss to function with people and places where hearing may be required. Cochlear implants are a fine solution for severe to profound hearing loss, but there are problems that may accrue, and other solutions that need to be considered before a person makes the decision to get a cochlear implant for his or herself or a loved one","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116334373","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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