Conference Record of 2009 Annual Pulp and Paper Industry Technical Conference最新文献

Calculations of generator source short- circuit current according to ANSI/IEEE and IEC standards, with EMTP verifications 根据ANSI/IEEE和IEC标准计算发电机电源短路电流，并进行EMTP验证

Conference Record of 2009 Annual Pulp and Paper Industry Technical Conference Pub Date : 2009-06-21 DOI: 10.1109/PAPCON.2009.5185412

J. Das

引用次数: 4

Innovative, robust and secure industrial solutions using microprocessor relays 使用微处理器继电器的创新，强大和安全的工业解决方案

Conference Record of 2009 Annual Pulp and Paper Industry Technical Conference Pub Date : 2009-06-21 DOI: 10.1109/PAPCON.2009.5185421

C. Seelig, B. McDermott

引用次数: 0

NFPA and its implications on thermographic inspections NFPA及其对热成像检测的影响

Conference Record of 2009 Annual Pulp and Paper Industry Technical Conference Pub Date : 2009-06-21 DOI: 10.1109/PAPCON.2009.5185426

Martin Robinson

引用次数: 0

Managing through economic downturns - Before, during and after job loss and career change PPIC 2009 PANEL 在经济衰退中管理-失业和职业转变之前，期间和之后PPIC 2009小组

Conference Record of 2009 Annual Pulp and Paper Industry Technical Conference Pub Date : 2009-06-21 DOI: 10.1109/PAPCON.2009.5185423

G. Drewiske, Rory M. Johnson, D. Rhodes, Larry Thomas

引用次数: 0

Simple and reliable model for the thermal protection of variable speed self-ventilated induction motor drives 简单可靠的模型，用于变速自通风感应电动机驱动器的热保护

Conference Record of 2009 Annual Pulp and Paper Industry Technical Conference Pub Date : 2009-06-21 DOI: 10.1109/PAPCON.2009.5185431

M. Valenzuela, P. Reyes

引用次数: 5

Proper testing of protection systems ensures against false tripping and unnecessary outages 对保护系统进行适当的测试，以防止误跳闸和不必要的中断

Conference Record of 2009 Annual Pulp and Paper Industry Technical Conference Pub Date : 2009-06-21 DOI: 10.1109/PAPCON.2009.5185429

O. Peterson, Rogerio C. Scharlach, Cesar Baltazar

引用次数: 2

Professional networking on the internet 互联网上的专业网络

Conference Record of 2009 Annual Pulp and Paper Industry Technical Conference Pub Date : 2009-06-21 DOI: 10.1109/PAPCON.2009.5185427

B. Lloyd

引用次数: 7

Generator failures in pulp and paper mill style generators 纸浆和造纸厂式发电机的发电机故障

Conference Record of 2009 Annual Pulp and Paper Industry Technical Conference Pub Date : 2009-06-21 DOI: 10.1109/PAPCON.2009.5185420

W. Moore, Robert Vandenabeele

引用次数: 1

Calculating incident energy released with varying ground fault magnitudes on solidly grounded systems 计算实接地系统中随接地故障震级变化而释放的入射能量

Conference Record of 2009 Annual Pulp and Paper Industry Technical Conference Pub Date : 2009-06-21 DOI: 10.1109/PAPCON.2009.5185411

D. Loucks

{"title":"Calculating incident energy released with varying ground fault magnitudes on solidly grounded systems","authors":"D. Loucks","doi":"10.1109/PAPCON.2009.5185411","DOIUrl":"https://doi.org/10.1109/PAPCON.2009.5185411","url":null,"abstract":"The IEEE Standard 1584-2002 is the recognized standard regarding the calculation of incident energy output from an alternating-current three-phase arcing fault. While that standard does not provide incident energy calculations for the much more common single-phase-to-ground fault, it explains that the expectation is that such a ground fault will either self-extinguish or else will escalate into a 3-phase fault. If the fault escalates, the three-phase calculations can be used. The amount of time the arc burns as a single phase fault before escalation isn't defined, but a reference document used by 1584 defines this escalation time as one to two cycles. No attempt is made to calculate the incident energy released during this escalation period. While exact answers to the question of how much additional energy would be released are best answered through additional testing, this paper attempts to bracket likely high and low ranges of incident energy that could be released from an arcing single-phase to ground fault prior to escalation into a three-phase fault. As this paper only provides a theoretical basis for the calculation of additional energy released from arcing ground faults prior to escalation, it is the opinion of the author that future standards should include testing of incident energy released from faults that begin as low level arcing ground faults","PeriodicalId":217420,"journal":{"name":"Conference Record of 2009 Annual Pulp and Paper Industry Technical Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124156069","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

Active stator winding thermal protection for AC motors 交流电动机有源定子绕组热保护

Conference Record of 2009 Annual Pulp and Paper Industry Technical Conference Pub Date : 2009-06-21 DOI: 10.1109/PAPCON.2009.5185409

Pinjia Zhang, B. Lu, T. Habetler

{"title":"Active stator winding thermal protection for AC motors","authors":"Pinjia Zhang, B. Lu, T. Habetler","doi":"10.1109/PAPCON.2009.5185409","DOIUrl":"https://doi.org/10.1109/PAPCON.2009.5185409","url":null,"abstract":"AC motors are the main workhorses in process industries. Their malfunction may not only lead to repair or replacement of the motor, but also cause significant financial losses due to unexpected process downtime. Reliable thermal protection of ac motors is crucial for reducing the motor failure rate and prolonging a motor's lifetime. In this paper, conventional thermal protection devices and state-of-the-art thermal protection techniques are reviewed with their advantages and limitations discussed. Since 2001, the research team at the author's company and at the Georgia Institute of Technology has been cooperatively developing a series of active motor thermal protection methods, as a low-cost alternative approach to the traditional passive and sensor-based methods. These active thermal protection methods monitor the average stator temperature via stator resistance estimation based on the dc equivalent model of ac motors, using only motor stator voltage and current measurements. In this paper, an overview of the active thermal protection techniques for line-started, soft-starter-connected and inverter-fed ac motors is presented, with their advantages and drawbacks discussed. The active thermal protection techniques are capable of providing accurate, and non-invasive thermal protection of ac motors.","PeriodicalId":217420,"journal":{"name":"Conference Record of 2009 Annual Pulp and Paper Industry Technical Conference","volume":"AES-2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126486158","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: 30