Pub Date : 1999-10-26DOI: 10.1109/EEIC.1999.826214
D.J. Nicol
Knowing the physical, electrical and temperature limitations of Micrometals Iron Powder core materials reduces the development time and overall cost. This paper focuses on low cost toroid and E-core designs, thermal aging and available design tools to reduce or eliminate the "cut and try" development cycle. Applications to buck and boost inductors are discussed.
{"title":"Plain and simple design details regarding the application of iron powder cores","authors":"D.J. Nicol","doi":"10.1109/EEIC.1999.826214","DOIUrl":"https://doi.org/10.1109/EEIC.1999.826214","url":null,"abstract":"Knowing the physical, electrical and temperature limitations of Micrometals Iron Powder core materials reduces the development time and overall cost. This paper focuses on low cost toroid and E-core designs, thermal aging and available design tools to reduce or eliminate the \"cut and try\" development cycle. Applications to buck and boost inductors are discussed.","PeriodicalId":415071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.99CH37035)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115757913","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 : 1999-10-26DOI: 10.1109/EEIC.1999.826185
T. Kountotsis, J. Masi
The advent of organic materials for electroluminescent devices has allowed a wide variety of applications in displays, communications, sensors, and the like. This paper gives an overview of this search past, present, and future and the synthesis of promising new complex polymer building blocks which can yield electro-luminescent light emitting diode (LED) devices for displays, and communications. Methods and materials of fabrication are discussed, and test results are interpreted in the light of previous theory and device structure measurements. Device operation, in several configurations and colors, over a wide temperature range, is discussed.
{"title":"Luminescent polymer LEDs: an overview","authors":"T. Kountotsis, J. Masi","doi":"10.1109/EEIC.1999.826185","DOIUrl":"https://doi.org/10.1109/EEIC.1999.826185","url":null,"abstract":"The advent of organic materials for electroluminescent devices has allowed a wide variety of applications in displays, communications, sensors, and the like. This paper gives an overview of this search past, present, and future and the synthesis of promising new complex polymer building blocks which can yield electro-luminescent light emitting diode (LED) devices for displays, and communications. Methods and materials of fabrication are discussed, and test results are interpreted in the light of previous theory and device structure measurements. Device operation, in several configurations and colors, over a wide temperature range, is discussed.","PeriodicalId":415071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.99CH37035)","volume":"256 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123245428","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 : 1999-10-26DOI: 10.1109/EEIC.1999.826221
A. Zargari, W. Grisé
The purpose of this presentation is to examine the advantages of utilizing a design of experiments (DOE) software over the traditional methods of setting up experiments. In addition, the authors plan to validate the results of a scientifically designed experiment using DOE-PC IV software. The data are based on a battery of experiments that were run by researchers to see the effects of different variables on the operating temperature of thermal fuses in an electronic circuit.
{"title":"A comparison of traditional methods of setting-up the experiments with the utilization of computer-based DOE software: validation of a scientific experiment","authors":"A. Zargari, W. Grisé","doi":"10.1109/EEIC.1999.826221","DOIUrl":"https://doi.org/10.1109/EEIC.1999.826221","url":null,"abstract":"The purpose of this presentation is to examine the advantages of utilizing a design of experiments (DOE) software over the traditional methods of setting up experiments. In addition, the authors plan to validate the results of a scientifically designed experiment using DOE-PC IV software. The data are based on a battery of experiments that were run by researchers to see the effects of different variables on the operating temperature of thermal fuses in an electronic circuit.","PeriodicalId":415071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.99CH37035)","volume":"404 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121809177","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 : 1999-10-26DOI: 10.1109/EEIC.1999.826207
T. Bertheau, M. Hoof, T. Laird
Due to the competitive environment of the power generation industry, new approaches to condition assessment and maintenance of rotating electrical machines are being explored. Analysis results from partial discharge measurements have proven to be a key tool in predictive maintenance strategies. In this paper, common methods used by ABB for conducting partial discharge measurements are discussed. Special respect is given to online monitoring and the generation of alarms. A key to providing better alarm generation is described. Also, the actions that will be taken after an automatic alarm has been generated by the partial discharge measurement equipment are considered.
{"title":"Permanent on-line partial discharge monitoring as strategic concept to condition based diagnosis and maintenance","authors":"T. Bertheau, M. Hoof, T. Laird","doi":"10.1109/EEIC.1999.826207","DOIUrl":"https://doi.org/10.1109/EEIC.1999.826207","url":null,"abstract":"Due to the competitive environment of the power generation industry, new approaches to condition assessment and maintenance of rotating electrical machines are being explored. Analysis results from partial discharge measurements have proven to be a key tool in predictive maintenance strategies. In this paper, common methods used by ABB for conducting partial discharge measurements are discussed. Special respect is given to online monitoring and the generation of alarms. A key to providing better alarm generation is described. Also, the actions that will be taken after an automatic alarm has been generated by the partial discharge measurement equipment are considered.","PeriodicalId":415071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.99CH37035)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125545854","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 : 1999-10-26DOI: 10.1109/EEIC.1999.826194
T. Lemley
There are many individuals engaged in the manufacture of electric motors that do not possess a formal college based engineering education. These individuals have worked in the industry for many years and have pragmatically gained their skills through experiences they have encountered on the manufacturing floor. This paper has been written to provide this group of individuals with an elementary understanding of the most basic electrical engineering concepts required to facilitate the motor manufacturing process. The paper uses a practical approach to the presentation of electrical engineering concepts rather than a theoretical approach. These individuals should be able to utilize these concepts to better perform their daily duties.
{"title":"Basic electrical engineering for motor manufacturing","authors":"T. Lemley","doi":"10.1109/EEIC.1999.826194","DOIUrl":"https://doi.org/10.1109/EEIC.1999.826194","url":null,"abstract":"There are many individuals engaged in the manufacture of electric motors that do not possess a formal college based engineering education. These individuals have worked in the industry for many years and have pragmatically gained their skills through experiences they have encountered on the manufacturing floor. This paper has been written to provide this group of individuals with an elementary understanding of the most basic electrical engineering concepts required to facilitate the motor manufacturing process. The paper uses a practical approach to the presentation of electrical engineering concepts rather than a theoretical approach. These individuals should be able to utilize these concepts to better perform their daily duties.","PeriodicalId":415071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.99CH37035)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126622872","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 : 1999-10-26DOI: 10.1109/EEIC.1999.826193
J. Savage, P. Micheli, J. Suriano
This paper deals with a method to wind motor core slots with greater cross section of installed conductor wires than has been possible with prior turn-by-turn windings. Rapid turn-by-turn winding subjects conductor wires to varying tension which leads to successive slot wires not entering their slots parallel to previously wound wires. Successive turns do not move to the lowest zone of the slot due to friction coupling between themselves and previously wound wires. By inducing vibration in the wire as it is placed in the slot the wire is more apt to migrate to the lowest part of the slot where it can nest in a tighter configuration with the previously wound turns.
{"title":"Achievement of higher motor winding slot fill through the use of piezoelectric excitation device","authors":"J. Savage, P. Micheli, J. Suriano","doi":"10.1109/EEIC.1999.826193","DOIUrl":"https://doi.org/10.1109/EEIC.1999.826193","url":null,"abstract":"This paper deals with a method to wind motor core slots with greater cross section of installed conductor wires than has been possible with prior turn-by-turn windings. Rapid turn-by-turn winding subjects conductor wires to varying tension which leads to successive slot wires not entering their slots parallel to previously wound wires. Successive turns do not move to the lowest zone of the slot due to friction coupling between themselves and previously wound wires. By inducing vibration in the wire as it is placed in the slot the wire is more apt to migrate to the lowest part of the slot where it can nest in a tighter configuration with the previously wound turns.","PeriodicalId":415071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.99CH37035)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126840580","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 : 1999-10-26DOI: 10.1109/EEIC.1999.826229
W. F. Brown
"Invention for (an) improved means of giving increased strength to paper." This was the introduction of a patent application in 1859 by Thomas Taylor for the vulcanized fibre process. This patent was the procedure for converting a cellulose paper material into a unique laminate product with an unusual combination of "plastic-like" physical and chemical properties. Paper was transformed into a material that possessed increased strength and durability. VF is a laminate of cellulose paper plies. Here, the author examines vulcanized fibre insulation and explores how a relatively old material is finding a new relevancy in todays's insulation applications.
{"title":"Vulcanized fibre-an old material with a new relevancy","authors":"W. F. Brown","doi":"10.1109/EEIC.1999.826229","DOIUrl":"https://doi.org/10.1109/EEIC.1999.826229","url":null,"abstract":"\"Invention for (an) improved means of giving increased strength to paper.\" This was the introduction of a patent application in 1859 by Thomas Taylor for the vulcanized fibre process. This patent was the procedure for converting a cellulose paper material into a unique laminate product with an unusual combination of \"plastic-like\" physical and chemical properties. Paper was transformed into a material that possessed increased strength and durability. VF is a laminate of cellulose paper plies. Here, the author examines vulcanized fibre insulation and explores how a relatively old material is finding a new relevancy in todays's insulation applications.","PeriodicalId":415071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.99CH37035)","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116758340","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 : 1999-10-26DOI: 10.1109/EEIC.1999.826256
N. Swain, R. Nagel
A new high temperature, self-bonding magnet wire has been developed, with greatly improved bond strength retention at temperatures in excess of 180/spl deg/C. This new development is the first self-bonding magnet wire to be suitable for use in armatures, rotors and high temperature applications. In addition to its improved thermal properties, this new wire also exhibits excellent chemical resistance, particularly to diesel and gasoline fuels, making it suitable for specialized automotive applications.
{"title":"New high temperature self-bonding magnet wire","authors":"N. Swain, R. Nagel","doi":"10.1109/EEIC.1999.826256","DOIUrl":"https://doi.org/10.1109/EEIC.1999.826256","url":null,"abstract":"A new high temperature, self-bonding magnet wire has been developed, with greatly improved bond strength retention at temperatures in excess of 180/spl deg/C. This new development is the first self-bonding magnet wire to be suitable for use in armatures, rotors and high temperature applications. In addition to its improved thermal properties, this new wire also exhibits excellent chemical resistance, particularly to diesel and gasoline fuels, making it suitable for specialized automotive applications.","PeriodicalId":415071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.99CH37035)","volume":"92 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113970483","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 : 1999-10-26DOI: 10.1109/EEIC.1999.826247
D. Skaar
This paper describes a graphical method that may be used to predict the performance characteristics of an induction machine operating over a wide range of running conditions. Given the element values of the model to be analyzed and no load speed, then knowing only the magnitude of the phase current or the rotational speed of a machine, one can readily determine other operating characteristics with minimal computational complexity.
{"title":"Predicting induction motor performance using a unit circle","authors":"D. Skaar","doi":"10.1109/EEIC.1999.826247","DOIUrl":"https://doi.org/10.1109/EEIC.1999.826247","url":null,"abstract":"This paper describes a graphical method that may be used to predict the performance characteristics of an induction machine operating over a wide range of running conditions. Given the element values of the model to be analyzed and no load speed, then knowing only the magnitude of the phase current or the rotational speed of a machine, one can readily determine other operating characteristics with minimal computational complexity.","PeriodicalId":415071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.99CH37035)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133734420","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 : 1999-10-26DOI: 10.1109/EEIC.1999.826200
D. Barta
The NEMA magnet wire technical committee has been investigating direct current high voltage continuity (HVC) testing of magnet wire for several years. This paper describes efforts to better define (1) a continuity fault, (2) the continuity testing equipment, and (3) a new HVC electrode option. The description of the DC-HVC testing equipment in NEMA MW-1000 Part 3 needs to be improved to reduce the variations allowed in the equipment design and the corresponding wire testing results. The description of the equipment can be improved even without a better definition and understanding of an HVC fault. Investigations of the fault current waveform at the fault circuit has resulted in new insights in the detection and definition of HVC faults. The other major HVC issue still. Remaining is eliminating the double counting of faults by the dual sheave electrodes. A new graphite fiber electrode may resolve the issues of double counting without the potential of introducing any additional problems.
{"title":"Advances in direct current high voltage continuity testing. Report of the NEMA magnet wire MW-7 technical committee","authors":"D. Barta","doi":"10.1109/EEIC.1999.826200","DOIUrl":"https://doi.org/10.1109/EEIC.1999.826200","url":null,"abstract":"The NEMA magnet wire technical committee has been investigating direct current high voltage continuity (HVC) testing of magnet wire for several years. This paper describes efforts to better define (1) a continuity fault, (2) the continuity testing equipment, and (3) a new HVC electrode option. The description of the DC-HVC testing equipment in NEMA MW-1000 Part 3 needs to be improved to reduce the variations allowed in the equipment design and the corresponding wire testing results. The description of the equipment can be improved even without a better definition and understanding of an HVC fault. Investigations of the fault current waveform at the fault circuit has resulted in new insights in the detection and definition of HVC faults. The other major HVC issue still. Remaining is eliminating the double counting of faults by the dual sheave electrodes. A new graphite fiber electrode may resolve the issues of double counting without the potential of introducing any additional problems.","PeriodicalId":415071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.99CH37035)","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133590609","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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