Conference Record of 2005 Annual Pulp and Paper Industry Technical Conference, 2005.最新文献

Mill requirements for drive system trending HMI 轧机对驱动系统的要求趋向于人机交互

Conference Record of 2005 Annual Pulp and Paper Industry Technical Conference, 2005. Pub Date : 2005-06-23 DOI: 10.1109/PAPCON.2005.1502061

D. Rhodes

引用次数: 0

Objective methods to interpret partial discharge data on rotating machines 旋转机械局部放电数据的客观解释方法

Conference Record of 2005 Annual Pulp and Paper Industry Technical Conference, 2005. Pub Date : 2005-06-23 DOI: 10.1109/PAPCON.2005.1502057

G. Stone, V. Warren

{"title":"Objective methods to interpret partial discharge data on rotating machines","authors":"G. Stone, V. Warren","doi":"10.1109/PAPCON.2005.1502057","DOIUrl":"https://doi.org/10.1109/PAPCON.2005.1502057","url":null,"abstract":"Partial discharge (PD) measurements have long been used to assess the condition of the electrical insulation in motors and generators rated 3.3 kV and above. There are many ways to measure PD during normal service of the motor or generator. Unfortunately most of the measurement methods mix stator PD with electrical interference signals from poor electrical connections, power tool operation, corona from transmission lines, etc. The result can be false indications of stator winding problems, reducing confidence in PD measurements. Another issue with on-line PD testing is interpretation: i.e. identifying which machines are in good condition and which need maintenance. In the past decade, a database of over 60,000 test results has been assembled. In hundreds of machines, the condition of the insulation determined by a visual inspection has been compared to the PD levels. The result is a table that provides an objective means of determining the stator insulation condition relative to other similar machines. Analysis of the results also shows that there are significant differences in PD activity between manufacturers. This paper gives a review of the methods that can reduce the risk of false indications, thus making the measurement less subjective","PeriodicalId":314450,"journal":{"name":"Conference Record of 2005 Annual Pulp and Paper Industry Technical Conference, 2005.","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122093933","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

Experiences of monitoring partial discharges in a pulp and paper mill 监测纸浆和造纸厂部分排放的经验

Conference Record of 2005 Annual Pulp and Paper Industry Technical Conference, 2005. Pub Date : 2005-06-23 DOI: 10.1109/PAPCON.2005.1502056

R. Astasiewicz, C. Kane, A. Golubev, C. Patterson

引用次数: 2

The use of infrared viewing systems in electrical control equipment 红外观测系统在电气控制设备中的应用

Conference Record of 2005 Annual Pulp and Paper Industry Technical Conference, 2005. Pub Date : 2005-06-23 DOI: 10.1109/PAPCON.2005.1502078

A.J. Holliday, J. Kay

引用次数: 5

Techniques in motor starting 电动机起动技术

Conference Record of 2005 Annual Pulp and Paper Industry Technical Conference, 2005. Pub Date : 2005-06-23 DOI: 10.1109/PAPCON.2005.1502048

T. Albers, C. Cade, S. Ruffing, F. Robinson

引用次数: 1

Fundamentals of a motor thermal model and its applications in motor protection 电机热模型基本原理及其在电机保护中的应用

Conference Record of 2005 Annual Pulp and Paper Industry Technical Conference, 2005. Pub Date : 2005-06-23 DOI: 10.1109/PAPCON.2005.1502046

B. Venkataraman, G. B, W. Premerlani, E. Shulman, M. Thakur, R. Midence

{"title":"Fundamentals of a motor thermal model and its applications in motor protection","authors":"B. Venkataraman, G. B, W. Premerlani, E. Shulman, M. Thakur, R. Midence","doi":"10.1109/PAPCON.2005.1502046","DOIUrl":"https://doi.org/10.1109/PAPCON.2005.1502046","url":null,"abstract":"This paper discusses the fundamentals of a motor thermal model and its mathematical interpretation and physics for the different stages of motor operation, (overload, locked rotor, too frequent or prolonged acceleration, duty cycling applications). It explains thermal model time constants and other technical aspects causing the biasing of the thermal model algorithm. Other topics covered in this paper show that a detailed motor data sheet's information, and coordination between the protection engineer and the motor supplier leads to proper selection of motor thermal protection parameters. This paper presents a closer look on motor stall, acceleration and running thermal limit curves, explains the concept of thermal capacity and elaborates on how thermal capacity is evaluated in motor protection devices. This paper also talks about some additional methods, such as voltage dependant and slip dependant motor overload curves, which are employed to evaluate thermal capacity in nonstandard motor applications. This paper presents the concept of matching thermal time constants for motor cyclic loads cases. Besides this, the response of a thermal model algorithm in practical applications is demonstrated. The paper also describes the real case example showing how to apply and fine tune the thermal model in high-inertia load application. In this context, the paper also explores some of the key topics that will ensure safe operation of the motor while allowing satisfactory motor design characteristics","PeriodicalId":314450,"journal":{"name":"Conference Record of 2005 Annual Pulp and Paper Industry Technical Conference, 2005.","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130835188","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: 63

Reducing outage maintenance costs by performance based maintenance 通过基于性能的维护降低停机维护成本

Conference Record of 2005 Annual Pulp and Paper Industry Technical Conference, 2005. Pub Date : 2005-06-23 DOI: 10.1109/PAPCON.2005.1502070

G. Paoletti, C. Jordan

{"title":"Reducing outage maintenance costs by performance based maintenance","authors":"G. Paoletti, C. Jordan","doi":"10.1109/PAPCON.2005.1502070","DOIUrl":"https://doi.org/10.1109/PAPCON.2005.1502070","url":null,"abstract":"The limitation of funding for traditional maintenance has resulted in some electrical distribution equipment having maintenance cycles extended well beyond historical levels. In addition, more maintenance funds are directed to rotating apparatus, such as electrical generators, process drives, compressors and supporting motors. This is necessary due to the added wear associated with rotating machinery versus stationary electrical distribution equipment. The need for maintenance on electrical distribution equipment, such as air and liquid-filled power distribution transformers, low and medium voltage circuit breakers, starters and motor-control centers still exists, but is subject to greater cost constraints within all facilities. A new approach, termed performance based maintenance, can utilize past and ongoing equipment maintenance records to prioritize electrical distribution equipment with greater detail. This allows for applying maintenance dollars to the electrical distribution equipment with the greatest need for maintenance, and also redirecting limited funds to more effective predictive practices or capital improvements","PeriodicalId":314450,"journal":{"name":"Conference Record of 2005 Annual Pulp and Paper Industry Technical Conference, 2005.","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128654508","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

Training electrical maintenance employees to be qualified 培训电气维修人员，使其合格

Conference Record of 2005 Annual Pulp and Paper Industry Technical Conference, 2005. Pub Date : 2005-06-23 DOI: 10.1109/PAPCON.2005.1502068

D. K. Neitzel

引用次数: 2

Practical methods in reducing the dangerous arc flash hazard areas in large industrial facilities 减少大型工业设施中危险电弧闪焰危险区的实用方法

Conference Record of 2005 Annual Pulp and Paper Industry Technical Conference, 2005. Pub Date : 2005-06-23 DOI: 10.1109/PAPCON.2005.1502065

M. Hodder, W. Vilcheck, F. Croyle, D. Mccue

{"title":"Practical methods in reducing the dangerous arc flash hazard areas in large industrial facilities","authors":"M. Hodder, W. Vilcheck, F. Croyle, D. Mccue","doi":"10.1109/PAPCON.2005.1502065","DOIUrl":"https://doi.org/10.1109/PAPCON.2005.1502065","url":null,"abstract":"Industrial and commercial facilities have recognized that arc flash prevention is a part of a complete safety program. Quantification of the arc flash hazard level and labeling procedures are a major portion of this effort. When calculating incident energy, the engineer must deal with two main issues in addition to the burn hazard-blast pressure effect on the human body and worker comfort or mobility with multilayer flash suits and associated flame resistant protective equipment. For work tasks where calculated incident energy levels are above 40 cal/cm2, it is desirable to reduce the exposure to the worker to reduce the burn injury. This can be achieved with either a change to the work method or by engineering design. This paper will discuss various methods that have been used to reduce the incident energy levels from above 40 cal/cm2 to levels below 40 cal/cm 2. Specific solutions implemented at a large chemical manufacturing facility are presented. The solutions include equipment upgrades, overcurrent protection modifications, changes to work methods, and worker training which increase the effectiveness of an already robust safety program. In addition, design changes that could be considered to keep incident energy below 40 cal/cm2 for expansions or additions to the power system are discussed","PeriodicalId":314450,"journal":{"name":"Conference Record of 2005 Annual Pulp and Paper Industry Technical Conference, 2005.","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121901995","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: 2

Analysis and control of large shunt capacitor bank switching transients 大型并联电容器组开关暂态分析与控制

Conference Record of 2005 Annual Pulp and Paper Industry Technical Conference, 2005. Pub Date : 2005-06-23 DOI: 10.1109/PAPCON.2005.1502059

J. Das

引用次数: 53