Pub Date : 1993-06-21DOI: 10.1109/PAPCON.1993.255796
W. Kent
Defeating safety interlocks in control systems can present a significant safety hazard to personnel and equipment. Considerations in the development of a corporate safety system override (SSO) procedure are discussed. The procedure can significantly reduce the likelihood of injuries and equipment damage. Objectives of the SSO procedure are given, and the SSO system design is discussed. Monitoring the SSO procedure is also discussed.<>
{"title":"Safety system override procedure","authors":"W. Kent","doi":"10.1109/PAPCON.1993.255796","DOIUrl":"https://doi.org/10.1109/PAPCON.1993.255796","url":null,"abstract":"Defeating safety interlocks in control systems can present a significant safety hazard to personnel and equipment. Considerations in the development of a corporate safety system override (SSO) procedure are discussed. The procedure can significantly reduce the likelihood of injuries and equipment damage. Objectives of the SSO procedure are given, and the SSO system design is discussed. Monitoring the SSO procedure is also discussed.<<ETX>>","PeriodicalId":129476,"journal":{"name":"Conference Record of 1993 Annual Pulp and Paper Industry Technical Conference","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115531018","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 : 1993-06-21DOI: 10.1109/PAPCON.1993.255814
C. Sandberg
A framework for a quantitative decision process for the choosing of the optimal type of heat tracing system is given. The three necessary factors for maximizing the reliability of the heat tracing, reliable component parts, correct design, and proper installation and commissioning, are discussed. Personal computers give the engineer a powerful tool to help analyze a potential heat tracing system. A computer program, ASAP, is described which will help a design engineer study the total installed cost (TIC) and the total operating cost (TOC). TIC is made up of two components, material cost and labor cost to install the heat tracing system. TOC is also made up of two components, energy cost and maintenance cost. Each component is described with emphasis on the differences between steam and electrical tracing. With this computer tool, an engineer can spend a few hours on developing a number of scenarios which should point to the optimum type of heat tracing.<>
{"title":"Economic comparison of steam and electrical heat tracing systems for use in pulp and paper mills","authors":"C. Sandberg","doi":"10.1109/PAPCON.1993.255814","DOIUrl":"https://doi.org/10.1109/PAPCON.1993.255814","url":null,"abstract":"A framework for a quantitative decision process for the choosing of the optimal type of heat tracing system is given. The three necessary factors for maximizing the reliability of the heat tracing, reliable component parts, correct design, and proper installation and commissioning, are discussed. Personal computers give the engineer a powerful tool to help analyze a potential heat tracing system. A computer program, ASAP, is described which will help a design engineer study the total installed cost (TIC) and the total operating cost (TOC). TIC is made up of two components, material cost and labor cost to install the heat tracing system. TOC is also made up of two components, energy cost and maintenance cost. Each component is described with emphasis on the differences between steam and electrical tracing. With this computer tool, an engineer can spend a few hours on developing a number of scenarios which should point to the optimum type of heat tracing.<<ETX>>","PeriodicalId":129476,"journal":{"name":"Conference Record of 1993 Annual Pulp and Paper Industry Technical Conference","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126840834","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 : 1993-06-21DOI: 10.1109/PAPCON.1993.255788
A. Bonnett, L. Wittman, J.G. Miller
A reference source for technical publications on the subject of noise and vibration as related to motors is provided. The bibliographies and abstracts were obtained through a literature search of the database files at Teltech Inc. This literature search produced over 75 papers, covering noise, vibration, combined noise and vibration, and noise or vibration of inverter duty/variable-speed motors and drives.<>
{"title":"Motor vibes: noise and vibration bibliographies and abstracts","authors":"A. Bonnett, L. Wittman, J.G. Miller","doi":"10.1109/PAPCON.1993.255788","DOIUrl":"https://doi.org/10.1109/PAPCON.1993.255788","url":null,"abstract":"A reference source for technical publications on the subject of noise and vibration as related to motors is provided. The bibliographies and abstracts were obtained through a literature search of the database files at Teltech Inc. This literature search produced over 75 papers, covering noise, vibration, combined noise and vibration, and noise or vibration of inverter duty/variable-speed motors and drives.<<ETX>>","PeriodicalId":129476,"journal":{"name":"Conference Record of 1993 Annual Pulp and Paper Industry Technical Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133987865","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 : 1993-06-21DOI: 10.1109/PAPCON.1993.255812
J. A. Lawson
Electrical motor bearing fluting has been defined as damage due to electrical current discharge through a motor bearing. Bearing race metal is electroplated onto the bearing balls. Close inspection reveals microscopic pits on bearing ball and race surfaces. A DC motor frame was completely isolated from ground except by a single grounding conductor with applied armature and field voltage. No motor shaft load was connected to the test motor. Motor bearing fluting ground currents were measured and stored with a high speed oscilloscope (50-mHz bandwidth). Waveforms were recorded photographically. With the motor running parallel with the paper machine front drum winder motor (known to have a history of fluting problems), field voltage transients on the field modules were also applied to the isolated test motor. A Dranetz meter was applied to the DC field supply module to verify the transient voltage magnitude and duration. An oscilloscope was connected across the ground shunt. Motor bearing currents were recorded with waveforms close to those expected under actual motor conditions. These meters recorded the wave shape, level, and ground current pulse duration that actually flowed through the motor bearings while rotating at operating speed.<>
{"title":"Motor bearing fluting","authors":"J. A. Lawson","doi":"10.1109/PAPCON.1993.255812","DOIUrl":"https://doi.org/10.1109/PAPCON.1993.255812","url":null,"abstract":"Electrical motor bearing fluting has been defined as damage due to electrical current discharge through a motor bearing. Bearing race metal is electroplated onto the bearing balls. Close inspection reveals microscopic pits on bearing ball and race surfaces. A DC motor frame was completely isolated from ground except by a single grounding conductor with applied armature and field voltage. No motor shaft load was connected to the test motor. Motor bearing fluting ground currents were measured and stored with a high speed oscilloscope (50-mHz bandwidth). Waveforms were recorded photographically. With the motor running parallel with the paper machine front drum winder motor (known to have a history of fluting problems), field voltage transients on the field modules were also applied to the isolated test motor. A Dranetz meter was applied to the DC field supply module to verify the transient voltage magnitude and duration. An oscilloscope was connected across the ground shunt. Motor bearing currents were recorded with waveforms close to those expected under actual motor conditions. These meters recorded the wave shape, level, and ground current pulse duration that actually flowed through the motor bearings while rotating at operating speed.<<ETX>>","PeriodicalId":129476,"journal":{"name":"Conference Record of 1993 Annual Pulp and Paper Industry Technical Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128412052","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 : 1993-06-21DOI: 10.1109/PAPCON.1993.255808
R. H. Simpson
Power quality problems can result from unbalances in either the system load or the system components. These unbalances can result in overheating of system components, difficulty in controlling equipment, and circulating currents in the delta winding circuits of machines. Appropriate system voltage and current measurements combined with symmetrical component analysis can determine the source of these system unbalances. A case study is presented.<>
{"title":"Power quality and symmetrical component analysis","authors":"R. H. Simpson","doi":"10.1109/PAPCON.1993.255808","DOIUrl":"https://doi.org/10.1109/PAPCON.1993.255808","url":null,"abstract":"Power quality problems can result from unbalances in either the system load or the system components. These unbalances can result in overheating of system components, difficulty in controlling equipment, and circulating currents in the delta winding circuits of machines. Appropriate system voltage and current measurements combined with symmetrical component analysis can determine the source of these system unbalances. A case study is presented.<<ETX>>","PeriodicalId":129476,"journal":{"name":"Conference Record of 1993 Annual Pulp and Paper Industry Technical Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130689991","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 : 1993-06-21DOI: 10.1109/PAPCON.1993.255795
B. Lang
A plan for implementing ISO 9000 standards in a pulp mill electrical and instrumentation department is outlined. Deviations from the plan, based on experience, are highlighted.<>
概述了在纸浆厂电气和仪表部门实施iso9000标准的计划。根据经验，与计划的偏差被突出显示。
{"title":"Implementing ISO 9000 standard in a pulp mill electrical and instrumentation department","authors":"B. Lang","doi":"10.1109/PAPCON.1993.255795","DOIUrl":"https://doi.org/10.1109/PAPCON.1993.255795","url":null,"abstract":"A plan for implementing ISO 9000 standards in a pulp mill electrical and instrumentation department is outlined. Deviations from the plan, based on experience, are highlighted.<<ETX>>","PeriodicalId":129476,"journal":{"name":"Conference Record of 1993 Annual Pulp and Paper Industry Technical Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128198062","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 : 1993-06-21DOI: 10.1109/PAPCON.1993.255789
S. Appleton
The author addresses the issue of millwide control using a PLC-based platform with a unified, simple programming language for all mill areas, from the control of sophisticated sectional drives on high-speed paper machines up to MD and CD profile controls. Emphasis is placed on maximizing uptimes in the form of sophisticated diagnostic tools which will be further developed and enhanced. The modularity of the system allows the simple single cell or island solution to be expanded, while still retaining overall transparency, and the standardized Ethernet bus allows a true open architecture, permitting flexibility in vendor selection.<>
{"title":"A uniform drive and process control system for the pulp and paper industry","authors":"S. Appleton","doi":"10.1109/PAPCON.1993.255789","DOIUrl":"https://doi.org/10.1109/PAPCON.1993.255789","url":null,"abstract":"The author addresses the issue of millwide control using a PLC-based platform with a unified, simple programming language for all mill areas, from the control of sophisticated sectional drives on high-speed paper machines up to MD and CD profile controls. Emphasis is placed on maximizing uptimes in the form of sophisticated diagnostic tools which will be further developed and enhanced. The modularity of the system allows the simple single cell or island solution to be expanded, while still retaining overall transparency, and the standardized Ethernet bus allows a true open architecture, permitting flexibility in vendor selection.<<ETX>>","PeriodicalId":129476,"journal":{"name":"Conference Record of 1993 Annual Pulp and Paper Industry Technical Conference","volume":"265 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126878596","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 : 1993-06-21DOI: 10.1109/PAPCON.1993.255800
N. S. Perkins
The concept of basic-skill deficits in today's workforce when viewed in the context of industries' need to compete in the global economy is addressed. A brief summary of the reasons that workplace literacy has become a contemporary issue is presented. Terms and background concepts that are needed for a full understanding of the subject are defined. Three case studies are included showing what some companies in the pulp and paper industry have done to address literacy needs. Suggestions for individuals needing to deal with document redesign are offered, as well as a broad outline of what the industry as a whole might profitably do to limit the impact of skill deficits in the next several years.<>
{"title":"Workplace literacy issues in the pulp and paper industry","authors":"N. S. Perkins","doi":"10.1109/PAPCON.1993.255800","DOIUrl":"https://doi.org/10.1109/PAPCON.1993.255800","url":null,"abstract":"The concept of basic-skill deficits in today's workforce when viewed in the context of industries' need to compete in the global economy is addressed. A brief summary of the reasons that workplace literacy has become a contemporary issue is presented. Terms and background concepts that are needed for a full understanding of the subject are defined. Three case studies are included showing what some companies in the pulp and paper industry have done to address literacy needs. Suggestions for individuals needing to deal with document redesign are offered, as well as a broad outline of what the industry as a whole might profitably do to limit the impact of skill deficits in the next several years.<<ETX>>","PeriodicalId":129476,"journal":{"name":"Conference Record of 1993 Annual Pulp and Paper Industry Technical Conference","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127999131","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 : 1993-06-21DOI: 10.1109/PAPCON.1993.255801
C. T. Walters
Information on the factors to be considered when a power transformer fails is presented. Transformer failure statistics are discussed. Determining the cost of repair is addressed, and the repair procedures are described. The cost of ownership is examined, and transformer loss evaluations are discussed.<>
{"title":"Failed transformers: replace or repair?","authors":"C. T. Walters","doi":"10.1109/PAPCON.1993.255801","DOIUrl":"https://doi.org/10.1109/PAPCON.1993.255801","url":null,"abstract":"Information on the factors to be considered when a power transformer fails is presented. Transformer failure statistics are discussed. Determining the cost of repair is addressed, and the repair procedures are described. The cost of ownership is examined, and transformer loss evaluations are discussed.<<ETX>>","PeriodicalId":129476,"journal":{"name":"Conference Record of 1993 Annual Pulp and Paper Industry Technical Conference","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132297866","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}
The work reported results from the experience of installing a number of uninterruptible power supply (UPS) systems for various projects. Typical applications in a pulp and paper mill are described, and how to evaluate whether a UPS system should be used is determined. Factors are listed which will help determine whether a UPS system should be installed. Typical applications in pulp and paper mills are listed and discussed. Problems from some actual installations are described and alternative approaches are examined.<>
{"title":"UPS applications: a mill perspective","authors":"R. Carle","doi":"10.1109/2943.469998","DOIUrl":"https://doi.org/10.1109/2943.469998","url":null,"abstract":"The work reported results from the experience of installing a number of uninterruptible power supply (UPS) systems for various projects. Typical applications in a pulp and paper mill are described, and how to evaluate whether a UPS system should be used is determined. Factors are listed which will help determine whether a UPS system should be installed. Typical applications in pulp and paper mills are listed and discussed. Problems from some actual installations are described and alternative approaches are examined.<<ETX>>","PeriodicalId":129476,"journal":{"name":"Conference Record of 1993 Annual Pulp and Paper Industry Technical Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127940744","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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