Pub Date : 1900-01-01DOI: 10.1109/EEIC.2005.1566327
D. H. Shreve
This paper first examines the needs for the basic set of tools for machine condition monitoring applications, including a look at the key elements of detection, analysis, and correction. It then examines the requirements for tools in each area, and proposes a solution on how they can be combined in one palm-sized instrument and portable toolkit for maintenance personnel
{"title":"Field analysis and balancing tools","authors":"D. H. Shreve","doi":"10.1109/EEIC.2005.1566327","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566327","url":null,"abstract":"This paper first examines the needs for the basic set of tools for machine condition monitoring applications, including a look at the key elements of detection, analysis, and correction. It then examines the requirements for tools in each area, and proposes a solution on how they can be combined in one palm-sized instrument and portable toolkit for maintenance personnel","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"158 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":"116082979","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.2005.1566292
J.C. Pearson, D. Pandya
This paper provides a case study of considering an economical evaluation comparing a traditional approach of completely demolishing old electrical MCCs equipment versus investigating and replacing only the malfunctioning components in the MCC. The example below illustrates how a thorough investigation of existing electrical equipment can entirely alter previous planning decisions and have a drastic impact on cost estimates. A case study detailing the revitalization of 276, thirty three year old Motor Control Center (MCC) buckets, improved safety and security for our employees and facility equipment, extended overall life of the motor control center (MCCs), enhanced skills of our employees, and saved more than one million dollars for the US Postal facility-at Jersey City, NJ
{"title":"Revitalizing and refurbishment of motor control centers AT NJI & BMC","authors":"J.C. Pearson, D. Pandya","doi":"10.1109/EEIC.2005.1566292","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566292","url":null,"abstract":"This paper provides a case study of considering an economical evaluation comparing a traditional approach of completely demolishing old electrical MCCs equipment versus investigating and replacing only the malfunctioning components in the MCC. The example below illustrates how a thorough investigation of existing electrical equipment can entirely alter previous planning decisions and have a drastic impact on cost estimates. A case study detailing the revitalization of 276, thirty three year old Motor Control Center (MCC) buckets, improved safety and security for our employees and facility equipment, extended overall life of the motor control center (MCCs), enhanced skills of our employees, and saved more than one million dollars for the US Postal facility-at Jersey City, NJ","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"282 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":"116085165","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.2005.1566255
F. Emery
This paper is written on the basis of recommendations in IEEE Std 95-2002. It is common practice to use both AC and DC power supplies for the high potential testing of large electrical generator stator windings. A much higher voltage, well above the machine operating voltage; is almost always used. This paper reviews the procedures, results and test aspects of both the AC and DC testing of stator coils and the completed stator winding. The major issues addressed are the voltage levels used; where and when they are applied; the relationship between the AC and DC test voltage levels; what components of the winding are actually being tested; and are the presently used multiplication factors between DC and AC really being used correctly? A significant issue to address is that the stator coils and the stator winding layout, is designed to primarily get through the final AC or DC hi-pot test Should this present way of thinking still be followed in going forward in the future?
{"title":"Considerations of AC and DC testing of large electrical stator windings and components","authors":"F. Emery","doi":"10.1109/EEIC.2005.1566255","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566255","url":null,"abstract":"This paper is written on the basis of recommendations in IEEE Std 95-2002. It is common practice to use both AC and DC power supplies for the high potential testing of large electrical generator stator windings. A much higher voltage, well above the machine operating voltage; is almost always used. This paper reviews the procedures, results and test aspects of both the AC and DC testing of stator coils and the completed stator winding. The major issues addressed are the voltage levels used; where and when they are applied; the relationship between the AC and DC test voltage levels; what components of the winding are actually being tested; and are the presently used multiplication factors between DC and AC really being used correctly? A significant issue to address is that the stator coils and the stator winding layout, is designed to primarily get through the final AC or DC hi-pot test Should this present way of thinking still be followed in going forward in the future?","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":"133682484","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.2005.1566317
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.2005.1566246
D. Barta
In the last few years, there has been a considerable amount of activity generated in the NEMA 6-MW Technical Committee due to a change in philosophy regarding the periodic conformance testing of magnet wire products. In the past, the periodic conformance tests have been designed around the special testing of a few standard AWG sizes, to define the unique properties of a particular magnet wire product type. These periodic conformance tests have been used to describe the uniqueness of the particular insulation system of the MW type, rather than to describe the expected performance of different wire sizes in these periodic conformance tests. The need to perform these periodic conformance tests on other wire sizes has created the demand for a new approach
{"title":"Revisions of the periodic conformance testing procedures in the NEMA MW 1000 magnet wire standard","authors":"D. Barta","doi":"10.1109/EEIC.2005.1566246","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566246","url":null,"abstract":"In the last few years, there has been a considerable amount of activity generated in the NEMA 6-MW Technical Committee due to a change in philosophy regarding the periodic conformance testing of magnet wire products. In the past, the periodic conformance tests have been designed around the special testing of a few standard AWG sizes, to define the unique properties of a particular magnet wire product type. These periodic conformance tests have been used to describe the uniqueness of the particular insulation system of the MW type, rather than to describe the expected performance of different wire sizes in these periodic conformance tests. The need to perform these periodic conformance tests on other wire sizes has created the demand for a new approach","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":"115142125","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.2005.1566294
Chengrong Li, B. Qi, Z. Shu
A ion migration testing for DC ceramic support insulators was designed and conducted in this paper. After the long-term ion migration testing, the change of Na+ distribution in the tested samples was analyzed, and the mechanical performance of the tested samples was verified. It is indicated from our results that the ion migration testing in our laboratory doesn't influence the mechanical performance for the ceramic support insulators
{"title":"Experimental study on the ion migration of DC support ceramic insulators","authors":"Chengrong Li, B. Qi, Z. Shu","doi":"10.1109/EEIC.2005.1566294","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566294","url":null,"abstract":"A ion migration testing for DC ceramic support insulators was designed and conducted in this paper. After the long-term ion migration testing, the change of Na+ distribution in the tested samples was analyzed, and the mechanical performance of the tested samples was verified. It is indicated from our results that the ion migration testing in our laboratory doesn't influence the mechanical performance for the ceramic support insulators","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"58 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":"115635091","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.2005.1566289
S. Haq, S. Jayaram, E. Cherney
Class-F 4.0 kV coils designed for medium voltage induction motors are aged under combined thermal and electrical stresses of 500 h at a constant temperature of 120degC and 200 h at a constant temperature of 150degC and stressed electrically at 60 Hz and with steep-front unipolar pulses of 40 ns rise time. The changes in the partial discharge activity and the dissipation factor as a function of time are reported. During ageing, the temperature profiles are recorded with an infrared camera as a means for determining the highest stressed regions. The experimental results show that pulse ageing is very severe when compared to 60 Hz ageing, despite using a lower pulse voltage, although the location where damage occurs on the groundwall insulation is different
{"title":"Evaluation of medium voltage groundwall insulation exposed to high frequency pulse voltages","authors":"S. Haq, S. Jayaram, E. Cherney","doi":"10.1109/EEIC.2005.1566289","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566289","url":null,"abstract":"Class-F 4.0 kV coils designed for medium voltage induction motors are aged under combined thermal and electrical stresses of 500 h at a constant temperature of 120degC and 200 h at a constant temperature of 150degC and stressed electrically at 60 Hz and with steep-front unipolar pulses of 40 ns rise time. The changes in the partial discharge activity and the dissipation factor as a function of time are reported. During ageing, the temperature profiles are recorded with an infrared camera as a means for determining the highest stressed regions. The experimental results show that pulse ageing is very severe when compared to 60 Hz ageing, despite using a lower pulse voltage, although the location where damage occurs on the groundwall insulation is different","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"40 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":"123384000","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.2005.1566297
T. Waggoner
Some products are reverse engineered RE as an origin in the design process while others are based on a new inception. In a globally competitive market it is important to reverse engineer electrical products and components for manufacture. Competitor's products are reverse engineered to generate a cost basis to keep a manufacturer's pricing in line with markets. The process of reverse engineering can also be used to regenerate obsolete parts or ones that are out of production and needed for service needs. The reverse engineered part or one designed completely in a solid modeling (SM) package parallels the future manufacture of the part and corresponding assembly. Animation and analysis are integrated into the SM and FEA modeling of the part
{"title":"Exporting solid models into finite element analysis (FEA) for reverse engineering of electrical components","authors":"T. Waggoner","doi":"10.1109/EEIC.2005.1566297","DOIUrl":"https://doi.org/10.1109/EEIC.2005.1566297","url":null,"abstract":"Some products are reverse engineered RE as an origin in the design process while others are based on a new inception. In a globally competitive market it is important to reverse engineer electrical products and components for manufacture. Competitor's products are reverse engineered to generate a cost basis to keep a manufacturer's pricing in line with markets. The process of reverse engineering can also be used to regenerate obsolete parts or ones that are out of production and needed for service needs. The reverse engineered part or one designed completely in a solid modeling (SM) package parallels the future manufacture of the part and corresponding assembly. Animation and analysis are integrated into the SM and FEA modeling of the part","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"81 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":"122080365","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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