Pub Date : 1900-01-01DOI: 10.1109/EEIC.2005.1566319
J. Woody
This paper reviews the generalized subject of core losses in single-phase AC induction motors and discusses the proper selection of stator core materials to reduce those losses. It also describes a unique method of interconnecting the stator windings that results in improved efficiency in multi-speed induction motors operating with a fan-type load
{"title":"Improving efficiency in fractional horsepower motors for air-moving applications","authors":"J. Woody","doi":"10.1109/EEIC.2005.1566319","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566319","url":null,"abstract":"This paper reviews the generalized subject of core losses in single-phase AC induction motors and discusses the proper selection of stator core materials to reduce those losses. It also describes a unique method of interconnecting the stator windings that results in improved efficiency in multi-speed induction motors operating with a fan-type load","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"2 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":"132245156","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.2005.1566334
J. J. Evans
Sensors along with processing and communication electronics are becoming small enough to be tightly integrated into a wide variety of systems from biological and environmental to manufacturing. Along with this miniaturization, wireless sensor networks have recently become an area of great interest to researchers and industry. They offer the promise of monitoring, data collection, and control of systems with unprecedented scale and spatial granularity. It is widely believed that wireless sensor network system design, installation, and maintenance are simplified due to the absence of physical wires. As with any emerging technology, pitfalls are as significant as the benefits. Today the performance of these networks is highly application dependent, with many different, yet tightly coupled challenges. This paper provides an overview and description of what wireless sensor networks are and are not. Challenges with their design and deployment in electrical manufacturing environments are also presented. The current wireless sensor network state of the art and obstacles to overcome are reviewed. Finally, a speculative view of future trends is offered
{"title":"Wireless sensor networks in electrical manufacturing","authors":"J. J. Evans","doi":"10.1109/EEIC.2005.1566334","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566334","url":null,"abstract":"Sensors along with processing and communication electronics are becoming small enough to be tightly integrated into a wide variety of systems from biological and environmental to manufacturing. Along with this miniaturization, wireless sensor networks have recently become an area of great interest to researchers and industry. They offer the promise of monitoring, data collection, and control of systems with unprecedented scale and spatial granularity. It is widely believed that wireless sensor network system design, installation, and maintenance are simplified due to the absence of physical wires. As with any emerging technology, pitfalls are as significant as the benefits. Today the performance of these networks is highly application dependent, with many different, yet tightly coupled challenges. This paper provides an overview and description of what wireless sensor networks are and are not. Challenges with their design and deployment in electrical manufacturing environments are also presented. The current wireless sensor network state of the art and obstacles to overcome are reviewed. Finally, a speculative view of future trends is offered","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"63 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":"133493583","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.2005.1566333
C. Payne
The more efficient that farmers farm the more profits they have at sale of their crops. They achieve more efficiency through modern technologies. The technologies include the AFS system by the Case International Company, IntelliSteer by the New Holland Corporation, Fieldstar, Auto-Guide, SGIC systems by the Agco Corporation, and GreenStar system by the John Deere Company. The John Deere Company was formed to manufacture equipment and products, which provide constant improvements in the farming industry. The company is improving the farming industry using a number of Agriculture Management Solutions systems. The systems include the GreenStar system that helps farmers drive a parallel line or drives the line for them using the AutoTrac option. The StarFire position receiver tells the farmer where he/she is in the field from GPS satellites. The JDOffice helps the farm managers keep track of their fields' production and machines. The JDLink sends data from a computer in the tractor to one in the manager's office telling what may be wrong with the machine. With Harvest Doc, the farmer can receive and track information on the yields and moisture content of his crops. These technologies help to keep John Deere in the forefront of farming technology
{"title":"Technologies for efficient farming","authors":"C. Payne","doi":"10.1109/EEIC.2005.1566333","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566333","url":null,"abstract":"The more efficient that farmers farm the more profits they have at sale of their crops. They achieve more efficiency through modern technologies. The technologies include the AFS system by the Case International Company, IntelliSteer by the New Holland Corporation, Fieldstar, Auto-Guide, SGIC systems by the Agco Corporation, and GreenStar system by the John Deere Company. The John Deere Company was formed to manufacture equipment and products, which provide constant improvements in the farming industry. The company is improving the farming industry using a number of Agriculture Management Solutions systems. The systems include the GreenStar system that helps farmers drive a parallel line or drives the line for them using the AutoTrac option. The StarFire position receiver tells the farmer where he/she is in the field from GPS satellites. The JDOffice helps the farm managers keep track of their fields' production and machines. The JDLink sends data from a computer in the tractor to one in the manager's office telling what may be wrong with the machine. With Harvest Doc, the farmer can receive and track information on the yields and moisture content of his crops. These technologies help to keep John Deere in the forefront of farming technology","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":"128032475","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.2005.1566248
E. Scherrer
The most recent issue of NEMA MW 1000, published in 2003 consists of three major parts. Part 1 covers general information about the standard, definitions of terminology and dimensional information that applies to the majority of the standards in Part 2. Part 2 provides specific requirements for more than 60 different magnet wire specifications. Part 3 provides actual test procedures and specific test requirements by AWG size for many of the procedures. Since 2003 there have been a number of changes made in each of these parts of MW 1000. In Part 1, new dimensional requirements have been developed and added for 8-13.5 single build products and additional definitions have been provided for minimum insulation increases and maximum OD's for a number of insulation builds and size ranges. Also, standard dimensions for half AWG sizes have been added for single build from 8-29.5 AWG, for heavy build from 4-29.5 AWG and for triple and quadruple builds from 14-29.5 AWG. In Part 2, several new standards such as MW 37-C and MW 38-C have been added and some of the requirements for other standards have been modified. In Part 3, many tests such as the adhesion and flexibility procedures and requirements have been modified and revised. Finally, some routine test procedures in Part 3 have been reclassified to become periodic test procedures and some periodic test procedures have been modified to allow testing with sizes other than 18 AWG
{"title":"NEMA 6-MW magnet wire Technical Committee chairman's report-2005","authors":"E. Scherrer","doi":"10.1109/EEIC.2005.1566248","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566248","url":null,"abstract":"The most recent issue of NEMA MW 1000, published in 2003 consists of three major parts. Part 1 covers general information about the standard, definitions of terminology and dimensional information that applies to the majority of the standards in Part 2. Part 2 provides specific requirements for more than 60 different magnet wire specifications. Part 3 provides actual test procedures and specific test requirements by AWG size for many of the procedures. Since 2003 there have been a number of changes made in each of these parts of MW 1000. In Part 1, new dimensional requirements have been developed and added for 8-13.5 single build products and additional definitions have been provided for minimum insulation increases and maximum OD's for a number of insulation builds and size ranges. Also, standard dimensions for half AWG sizes have been added for single build from 8-29.5 AWG, for heavy build from 4-29.5 AWG and for triple and quadruple builds from 14-29.5 AWG. In Part 2, several new standards such as MW 37-C and MW 38-C have been added and some of the requirements for other standards have been modified. In Part 3, many tests such as the adhesion and flexibility procedures and requirements have been modified and revised. Finally, some routine test procedures in Part 3 have been reclassified to become periodic test procedures and some periodic test procedures have been modified to allow testing with sizes other than 18 AWG","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"21 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":"127286337","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.2005.1566309
P. Halvorsen, B. Lunt
The majority of weight in a motor is concentrated in two major areas: the magnetic core and the copper windings. All of the other components of the motor can and have been made of plastics (e.g. bearings, armature, and housing). Previously, due to the electrical and magnetic properties required for the windings and the magnetic core, these were constrained to high density metals, mostly copper and steel. However since the early 1970s much progress has been made in the synthesis of polymers that display desirable electrical and magnetic properties. In this paper we discuss research into the possibility of constructing an all polymeric motor
{"title":"Polymeric motors, transformers and solenoids: the current state of the art","authors":"P. Halvorsen, B. Lunt","doi":"10.1109/EEIC.2005.1566309","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566309","url":null,"abstract":"The majority of weight in a motor is concentrated in two major areas: the magnetic core and the copper windings. All of the other components of the motor can and have been made of plastics (e.g. bearings, armature, and housing). Previously, due to the electrical and magnetic properties required for the windings and the magnetic core, these were constrained to high density metals, mostly copper and steel. However since the early 1970s much progress has been made in the synthesis of polymers that display desirable electrical and magnetic properties. In this paper we discuss research into the possibility of constructing an all polymeric motor","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"119 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":"123252713","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.2005.1566269
M. Vakilian, T. Blackburn, B. Phung, H. Zhang, O.H. Nam, M. S. Naderi
Power transformers are in service in different environmental, electrical and mechanical conditions. Many experiences have proved that the inner insulation system degradation may pose the transformer to fail while in service. On the other hand, partial discharges (PD) are recognized as the main cause of insulation deterioration process. Therefore, reaching the optimum inner insulation system is one of the challenges a transformer designer is faced with. The solution lies in the correct and accurate modelling of different types of transformer windings. Transformer strength especially during transient conditions is a criterion for transformer insulation designers. This challenge has made designers switch from ordinary layer and disc windings to multiple-alpha windings. Multiple-alpha windings have more complicated structure and comprise various parts with different physical structure and electrical characteristic. These kinds of windings have usually more wire length. These characteristics make partial discharge measurements be more hassling. Partial discharges that take place inside the winding propagate along the winding to reach the measuring terminals. Typical partial discharge signals cover a wide frequency range from DC up to hundreds of MHz and different frequency components propagate through the winding depending upon the winding structure in different modes. In this paper a comparison has been made between the results gained when the winding is single-alpha and those of multiple-alpha. A 66 kV/25 MVA interleaved winding, which has 19 fully interleaved discs plays the role of a single-alpha winding. When this main winding is connected to the tap winding with different structure and magnitude response, a multiple-alpha winding is constructed. In the experimental measurements in the laboratory, the line and neutral-end current signals are detected by two home-made high frequency current transformers (HF-CT) and recorded with a 500 MHz digital oscilloscope. Home-made sensors are designed to provide maximum sensitivity in the desired frequency range
{"title":"A comparison between partial discharge propagation in multiple-/spl alpha/ and single-/spl alpha/ transformer winding","authors":"M. Vakilian, T. Blackburn, B. Phung, H. Zhang, O.H. Nam, M. S. Naderi","doi":"10.1109/EEIC.2005.1566269","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566269","url":null,"abstract":"Power transformers are in service in different environmental, electrical and mechanical conditions. Many experiences have proved that the inner insulation system degradation may pose the transformer to fail while in service. On the other hand, partial discharges (PD) are recognized as the main cause of insulation deterioration process. Therefore, reaching the optimum inner insulation system is one of the challenges a transformer designer is faced with. The solution lies in the correct and accurate modelling of different types of transformer windings. Transformer strength especially during transient conditions is a criterion for transformer insulation designers. This challenge has made designers switch from ordinary layer and disc windings to multiple-alpha windings. Multiple-alpha windings have more complicated structure and comprise various parts with different physical structure and electrical characteristic. These kinds of windings have usually more wire length. These characteristics make partial discharge measurements be more hassling. Partial discharges that take place inside the winding propagate along the winding to reach the measuring terminals. Typical partial discharge signals cover a wide frequency range from DC up to hundreds of MHz and different frequency components propagate through the winding depending upon the winding structure in different modes. In this paper a comparison has been made between the results gained when the winding is single-alpha and those of multiple-alpha. A 66 kV/25 MVA interleaved winding, which has 19 fully interleaved discs plays the role of a single-alpha winding. When this main winding is connected to the tap winding with different structure and magnitude response, a multiple-alpha winding is constructed. In the experimental measurements in the laboratory, the line and neutral-end current signals are detected by two home-made high frequency current transformers (HF-CT) and recorded with a 500 MHz digital oscilloscope. Home-made sensors are designed to provide maximum sensitivity in the desired frequency range","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"12 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":"115911389","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.2005.1566330
N. Das, M. Kazimierczuk
This paper derives an expression for efficiency of the buck converter that is obtained by determining the power loss in each component of a power converter. The expression for efficiency is derived as a function of the DC voltage transfer function and the circuit parameters. For a selected design, the derived expression is validated using a PSpice simulation. The expression is used to predict the variation in efficiency as well as the duty cycle of the design for two conditions: with varying input voltage and a fixed load; and with a fixed input voltage and a varying load
{"title":"Power losses and efficiency of buck PWM DC-DC power converter","authors":"N. Das, M. Kazimierczuk","doi":"10.1109/EEIC.2005.1566330","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566330","url":null,"abstract":"This paper derives an expression for efficiency of the buck converter that is obtained by determining the power loss in each component of a power converter. The expression for efficiency is derived as a function of the DC voltage transfer function and the circuit parameters. For a selected design, the derived expression is validated using a PSpice simulation. The expression is used to predict the variation in efficiency as well as the duty cycle of the design for two conditions: with varying input voltage and a fixed load; and with a fixed input voltage and a varying load","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"35 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":"124327813","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.2005.1566307
J. Mazurkiewicz
Servos improve machine performance and productivity, as well as improving product consistency, lowering the reject rate, and improving the part's quality. All of these individually help save on cost-but servos bring all these benefits together and add to the improvement of the bottom line. What makes a servo "different"? As reviewed in this paper, there are several design characteristics and manufacturing techniques that make a servo "different" than other motor technologies. These lead to the advantages of servos. The performance of servos, how they compare to other technologies, the advantages, the application benefits and improvements are also covered
{"title":"Advantages of servos","authors":"J. Mazurkiewicz","doi":"10.1109/EEIC.2005.1566307","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566307","url":null,"abstract":"Servos improve machine performance and productivity, as well as improving product consistency, lowering the reject rate, and improving the part's quality. All of these individually help save on cost-but servos bring all these benefits together and add to the improvement of the bottom line. What makes a servo \"different\"? As reviewed in this paper, there are several design characteristics and manufacturing techniques that make a servo \"different\" than other motor technologies. These lead to the advantages of servos. The performance of servos, how they compare to other technologies, the advantages, the application benefits and improvements are also covered","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"101 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":"122843538","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.2005.1566251
Junhua Luo, Yi-gang Liu, Y. Luo
The node voltage method is widely used to solve electric circuit problems. It is also an effective method to set up and calculate power cable thermal conditions because the equivalent thermal circuit of a power cable is mathematically similar to an electric circuit. According to real time measurement results of polymeric jacket temperatures of power cables, the temperature of the cable conductor may be calculated using the node voltage method. Furthermore, the power cable load current can be controlled in real time based upon the conductor temperature
{"title":"Temperature calculation of power cable conductor in real time","authors":"Junhua Luo, Yi-gang Liu, Y. Luo","doi":"10.1109/EEIC.2005.1566251","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566251","url":null,"abstract":"The node voltage method is widely used to solve electric circuit problems. It is also an effective method to set up and calculate power cable thermal conditions because the equivalent thermal circuit of a power cable is mathematically similar to an electric circuit. According to real time measurement results of polymeric jacket temperatures of power cables, the temperature of the cable conductor may be calculated using the node voltage method. Furthermore, the power cable load current can be controlled in real time based upon the conductor temperature","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"11 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":"121075440","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.2005.1566322
R. Ripley
The science of electrical insulating resins for impregnation of electrical equipment has made many innovative strides in response to global environmental, economic and performance challenges. These innovations have brought to the industry new options for selecting a key component of an insulation system. Here an attempt will be made to summarize the characteristics of electrical grade resins carried in water
{"title":"Comparison of water carried resin technologies","authors":"R. Ripley","doi":"10.1109/EEIC.2005.1566322","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566322","url":null,"abstract":"The science of electrical insulating resins for impregnation of electrical equipment has made many innovative strides in response to global environmental, economic and performance challenges. These innovations have brought to the industry new options for selecting a key component of an insulation system. Here an attempt will be made to summarize the characteristics of electrical grade resins carried in water","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"1 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":"129583641","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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