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Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting最新文献

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Influence of material superficial moisture on insulation-metal electroseparation 材料表面水分对绝缘-金属电分离的影响
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244393
L. Dascalescu, A. Samuila, A. Iuga, R. Morar, Iosif Csorvasy
{"title":"Influence of material superficial moisture on insulation-metal electroseparation","authors":"L. Dascalescu, A. Samuila, A. Iuga, R. Morar, Iosif Csorvasy","doi":"10.1109/IAS.1992.244393","DOIUrl":"https://doi.org/10.1109/IAS.1992.244393","url":null,"abstract":"The efficiency of separating by electrostatic means the constituents of a polyvinyl chloride (PVC)-metal granular mixture depends on the moisture content of the materials. Laboratory research has been carried out to determine the acceptable superficial humidity of the granules to be separated. The experimental study has been implemented on a roll-type laboratory separator with a corona electrostatic field. Ten samples of 50% PVC and 50% aluminum or copper, with a moisture content in the range W=0-0.9%, have been identically processed. Several diagrams show the influence of the humidity on PVC and metal recovery from the granular mixture. It is found that efficient PVC-metal separation can be obtained for a moisture content of less than 0.3%. Experimental results are qualitatively discussed on the basis of the electrical charge of the PVC grain, the time constant of the discharge process, and the electric image force.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"15 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121005521","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}
引用次数: 20
On discrete and distributed RC models for electrostatic discharges 静电放电的离散和分布RC模型
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244247
A. Norberg
{"title":"On discrete and distributed RC models for electrostatic discharges","authors":"A. Norberg","doi":"10.1109/IAS.1992.244247","DOIUrl":"https://doi.org/10.1109/IAS.1992.244247","url":null,"abstract":"Data collected by experiments and from the literature are applied to four models of electrostatic discharges, including the one-dimensional transmission line model of a discharge propagating over a dielectric surface. For each model an analytical expression for the discharge current is given, and thus it is possible to numerically determine the charge transfer and the thermal energy released in the discharge. Equivalent electric circuits are proposed, and current wave shapes from these circuits fitted to observations. Discharges from small insulating surfaces may be described as discharges from a capacitor, with very low heat development efficiency. If the discharge enters the otherwise insulating surface at a conducting part, as for the case of a charged operator with a hand-held metal tool, the current is well described by a two-capacitance circuit. Long sparks, lightning and propagating discharges from large surfaces are better described by a transmission line model. Equations are given for both linear and circular geometry.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121367460","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}
引用次数: 0
Decomposition of gaseous organic contaminants by surface discharge induced plasma chemical processing-SPCP 表面放电诱发等离子体化学处理分解气态有机污染物的研究
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244376
T. Oda, R. Yamashita, I. Haga, T. Takahashi, S. Masuda
{"title":"Decomposition of gaseous organic contaminants by surface discharge induced plasma chemical processing-SPCP","authors":"T. Oda, R. Yamashita, I. Haga, T. Takahashi, S. Masuda","doi":"10.1109/IAS.1992.244376","DOIUrl":"https://doi.org/10.1109/IAS.1992.244376","url":null,"abstract":"The decomposition performance of surface induced plasma chemical processing (SPCP) for chlorofluorocarbon, acetone, trichloroethylene, and isopropyl alcohol was experimentally examined. More than 90 or 99% removal rate was realized when the residence time was about 1 s and the input electric power for a 16 cm/sup 3/ reactor was about 10 W. Acetone was the most stable material and alcohol was most easily decomposed. A gas-chromatograph-mass-spectrograph system was used for decomposition-product analysis. The decomposition of alcohol produced acetone as an undesirable byproduct of SPCD. The energy necessary to decompose one mole of each gas diluted in air was calculated from the experiments. The necessary energy for acetone and trichloroethylene was about one-tenth or one-twentieth of that for chlorofluorocarbon.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121376892","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}
引用次数: 93
Industrial power measurement and control design 工业功率测控设计
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244526
J. Asumadu, M.J. Devany, L. Wallis, J. Bond
{"title":"Industrial power measurement and control design","authors":"J. Asumadu, M.J. Devany, L. Wallis, J. Bond","doi":"10.1109/IAS.1992.244526","DOIUrl":"https://doi.org/10.1109/IAS.1992.244526","url":null,"abstract":"The authors present in detail the interface of a digital power metering system that provides multifunction instrumentation, data acquisition, and control using an RS 485-based local area network, (LAN). This system consists of an LAN in which several remote data acquisition and control nodes are serviced by a PC host. Each node, consisting of a metering processor and an input/output (I/O) processor, is linked to a PC-based LAN. The basic components are examined, and the potential uses of such a system and its power monitoring and control function are described.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127187728","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}
引用次数: 4
Selection of transformers for commercial buildings 商业建筑变压器的选择
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244263
R. Dwyer, D. Mueller
{"title":"Selection of transformers for commercial buildings","authors":"R. Dwyer, D. Mueller","doi":"10.1109/IAS.1992.244263","DOIUrl":"https://doi.org/10.1109/IAS.1992.244263","url":null,"abstract":"Standards dealing with the application of transformers subjected to harmonic load currents are clarified, and application guidelines are provided. The impact of harmonic currents in commercial building systems needs to be considered, due to the increased use of electrical equipment that draw nonsinusoidal current from the AC line. A transformer subjected to harmonic load currents should have a K-factor rating higher than that of the load it supplies. It is preferable to use a K-factor-rated transformer, rather than derating a general-purpose transformer. If the transformer is not K-factor rated, its maximum load kVA should be limited in accordance with ANSI/IEEE Standard C57.110, which applies to general-purpose transformers that are subjected to a load current with total harmonic distortion greater than 5%. Most applications for K-factor-rated transformers require either K=4 or K=13. Higher K-factor specifications should be examined for erroneous assumptions regarding load characteristics. The ANSI/IEEE Std. C57.110 derating calculation is very sensitive to errors in the input data; typical values and rules of thumb should be avoided.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126183223","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}
引用次数: 6
On-site testing for mobile particles in GIS under impulse voltages 冲击电压下GIS中移动粒子的现场测试
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244391
H. Anis, S. Ward
{"title":"On-site testing for mobile particles in GIS under impulse voltages","authors":"H. Anis, S. Ward","doi":"10.1109/IAS.1992.244391","DOIUrl":"https://doi.org/10.1109/IAS.1992.244391","url":null,"abstract":"The work models the performance of mobile particles in compressed-gas-insulated substations under an intentionally applied impulse voltage of reduced magnitude. The subsequent microdischarges are used to detect the presence of particles and identify their approximate sizes. A comprehensive computer model is described. It describes and interrelates the potential and field distributions on and around the particle, particle lifting and movement, timing of the initial microdischarge, and the complete pattern of the microdischarges as might be detected by an external monitoring circuit.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125392882","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}
引用次数: 1
A practical PWM AC controller topology 一个实用的PWM交流控制器拓扑
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244304
P. Ziogas, D. Vincenti, G. Joós
{"title":"A practical PWM AC controller topology","authors":"P. Ziogas, D. Vincenti, G. Joós","doi":"10.1109/IAS.1992.244304","DOIUrl":"https://doi.org/10.1109/IAS.1992.244304","url":null,"abstract":"The authors propose an improved version of the known pulse width modulation (PWM) controller topologies that can become a practical alternative to line-commutated AC controllers. The improvements include the use of typical unilateral switches, typical gating patterns, and reliability enhancing by-pass capacitors. The authors also present the analysis and design of the proposed converter topology, with key theoretical results verified experimentally on a 10 kVA breadboard.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126764112","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}
引用次数: 64
Mechanism analysis and performance improvement of electrostatic noise in co-axial cable 同轴电缆静电噪声的机理分析及性能改进
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244244
Xiao-dong Shi
{"title":"Mechanism analysis and performance improvement of electrostatic noise in co-axial cable","authors":"Xiao-dong Shi","doi":"10.1109/IAS.1992.244244","DOIUrl":"https://doi.org/10.1109/IAS.1992.244244","url":null,"abstract":"Procedures for measuring electrostatic noise signals produced in coaxial communication cables are introduced. On the basis of an analysis, it is concluded that the main source of electrostatic noise is the friction between the conductor and the dielectric. The electrostatic phenomena of triboelectrification in the cable are investigated and characterized. Two groups of methods for decreasing the noise are suggested and discussed.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115328300","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}
引用次数: 3
Rotor position sensing in switched reluctance motor drives by measuring mutually induced voltages 开关磁阻电机驱动中通过测量互感电压实现转子位置感应
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244364
M. Ehsani, I. Husain
{"title":"Rotor position sensing in switched reluctance motor drives by measuring mutually induced voltages","authors":"M. Ehsani, I. Husain","doi":"10.1109/IAS.1992.244364","DOIUrl":"https://doi.org/10.1109/IAS.1992.244364","url":null,"abstract":"A novel method of indirect rotor position sensing (IRPS) for switched reluctance motor (SRM) drives is described. The principle is based on the mutually induced voltages in phases adjacent to the energized phase of an SRM. The mutually induced voltage (MIV) in the off phase varies significantly as the rotor, corresponding to the energized stator, moves from its unaligned position towards complete alignment. This MIC variation is captured by a simple electronic circuit and then processed in a microcontroller to determine the commutation instants, thereby eliminating the need for direct rotor position sensors in an SRM. Successful operation of a four-phase SRM drive has been demonstrated in the laboratory using this mutual voltage technique of IRPS. The theoretical aspects of MIVs in an SRM and the relevant experimental results are presented.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116030419","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}
引用次数: 143
Characterization of tribocharging properties of powder paint 粉末涂料摩擦充电性能的表征
Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI: 10.1109/IAS.1992.244389
M. Mazumder, S. Banerjee, R. Ware, N. Kaya, C. Huang
{"title":"Characterization of tribocharging properties of powder paint","authors":"M. Mazumder, S. Banerjee, R. Ware, N. Kaya, C. Huang","doi":"10.1109/IAS.1992.244389","DOIUrl":"https://doi.org/10.1109/IAS.1992.244389","url":null,"abstract":"Simultaneous measurements of particle size and electrostatic charge was performed on charged powder paint and other powders in the particle size range from 1.0 to 65.0 mu m in diameter. An electrical single-particle aerodynamic relaxation time analyzer was used to measure electrostatic charge and aerodynamic size distributions on a single particle basis and in a noninvasive manner. The powders were triboelectrically charged against nonconducting surfaces. The average charge attained by particles larger than 4.0 mu m in diameter was less than the Gaussian limit of saturation charge. The charge-to-mass ratio of the bulk powder sample depended on the range of particle size in the sample. The mass median aerodynamic diameter of the sample studied was 30.0 mu m with a geometric standard deviation of 2.0.<<ETX>>","PeriodicalId":110710,"journal":{"name":"Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122386096","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}
引用次数: 20
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