Conference Record of 1997 Annual Pulp and Paper Industry Technical Conference最新文献_第3页

A low harmonic electric drive system based on current-source-inverter 基于电流源逆变器的低谐波电力驱动系统

Conference Record of 1997 Annual Pulp and Paper Industry Technical Conference Pub Date : 1997-06-16 DOI: 10.1109/PAPCON.1997.595231

Yuexin Yin, A. Wu

引用次数: 11

Output filters for PWM drives with induction motors 输出滤波器的PWM驱动器与感应电机

Conference Record of 1997 Annual Pulp and Paper Industry Technical Conference Pub Date : 1997-06-16 DOI: 10.1109/2943.644886

P.T. Finlayson

引用次数: 92

Impact of a 32000 HP refiner motor on Daishowa's existing power system and equipment 32000马力精炼电机对大正华现有电力系统和设备的影响

Conference Record of 1997 Annual Pulp and Paper Industry Technical Conference Pub Date : 1900-01-01 DOI: 10.1109/PAPCON.1997.595225

S. Khan, P. St-Onge, N. El-Dehaibi

引用次数: 0

An alternative to pilot wire relays for industrial power systems 工业电力系统中导线继电器的替代方案

Conference Record of 1997 Annual Pulp and Paper Industry Technical Conference Pub Date : 1900-01-01 DOI: 10.1109/PAPCON.1997.595232

D. Ventruella, D. J. Beck

引用次数: 0

Uncovering the hidden capacity in your medium voltage AC motors 揭开你的中压交流电动机的隐藏容量

Conference Record of 1997 Annual Pulp and Paper Industry Technical Conference Pub Date : 1900-01-01 DOI: 10.1109/PAPCON.1997.595240

F. Newman

{"title":"Uncovering the hidden capacity in your medium voltage AC motors","authors":"F. Newman","doi":"10.1109/PAPCON.1997.595240","DOIUrl":"https://doi.org/10.1109/PAPCON.1997.595240","url":null,"abstract":"An inevitable part of any major paper mill expansion or modernization project is the need to provide additional horsepower for several loads in excess of that which the vendor recommended and the engineers selected. Classic examples of this problem are such things as pressure screens, pulpers and some large pumps. After exhausting all other \"normal\" remedies, such as correcting mechanical problems or adjusting operating conditions, the usual result is that a new motor of a higher rating is ordered and eventually installed. This decision is then usually followed by the ordering of a new spare since the spare previously ordered will not be of the correct rating. The problem is further compounded by the fact that one may also be stuck with at least two motors that one no longer needs. The total cost is, of course, dependent on the horsepower involved and the number of applications requiring correction, but these situations are generally very expensive by anyone's standards. Although this is the usual scenario, it need not be the only option in all cases. The introduction a few years ago of reliable, solid state, temperature-based overload devices has opened up another avenue for those applications where the motor is just a \"little bit\" undersized. In order to do this, however, it is necessary to redefine the thinking of a lot of engineering, maintenance, and operating personnel with respect to motor overload protection.","PeriodicalId":346714,"journal":{"name":"Conference Record of 1997 Annual Pulp and Paper Industry Technical Conference","volume":"180 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":"116022269","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

Design of high speed fiber optics backbones for pulp and paper mills 纸浆和造纸厂高速光纤主干的设计

Conference Record of 1997 Annual Pulp and Paper Industry Technical Conference Pub Date : 1900-01-01 DOI: 10.1109/PAPCON.1997.595217

E. Byres, E. Hanschke

{"title":"Design of high speed fiber optics backbones for pulp and paper mills","authors":"E. Byres, E. Hanschke","doi":"10.1109/PAPCON.1997.595217","DOIUrl":"https://doi.org/10.1109/PAPCON.1997.595217","url":null,"abstract":"In late 1995, the data communications networks at the Fletcher Challenge Canada's Crofton pulp and paper mill had reached capacity and was suffering from overload conditions. The large growth in process control information and personal computers over the past few years was straining the existing coax and fiber optic systems' ability to reliably transfer data. In addition, the increased network complexity made the troubleshooting of the networks extremely difficult and time-consuming. This paper discusses the design methods used to create a new fiber optic backbone that would provide the data carrying capacity and reliability needed for the pulp and paper mill's computers and control systems. High speed network technologies such as ATM (asynchronous transfer mode), FDDI (fiber distributed data interface) and fast Ethernet were compared for their suitability in industrial environments. The design also incorporated Ethernet switches so that the existing Ethernet networks could attach at minimal cost. These switches subdivided the single large network that originally existed into approximately 24 subnetworks. This division greatly increased the network's allowable traffic capacity and prevented problems in any one area from propagating throughout the mill, thus reducing network and process downtime.","PeriodicalId":346714,"journal":{"name":"Conference Record of 1997 Annual Pulp and Paper Industry Technical Conference","volume":"54 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":"123018955","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