中国石油和化工(企业版)最新文献_第3页

Networks in a network, communications in electrical distribution 网络中的网络，配电中的通信

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666043

T. Papallo

{"title":"Networks in a network, communications in electrical distribution","authors":"T. Papallo","doi":"10.1109/PCICON.2013.6666043","DOIUrl":"https://doi.org/10.1109/PCICON.2013.6666043","url":null,"abstract":"“Network”, in this industry, has traditionally referred to the electrical power distribution network. Today, the term could easily apply to communication networks, which are becoming almost standard in the electrical power infrastructure. The role of communication networks has evolved from rudimentary data collection to, in some cases, becoming the centerpiece of complex wide area distributed data acquisition and control systems. The evolution of communication network technology is a key factor in this role transformation. A brief review of these changes will be presented. The increase in capability has led to a corresponding increase in functionality. As a result, networks are becoming as critical to electrical distribution as the copper cables themselves. To exploit the functionality that can be delivered by communications, the network must be designed to reliably deliver the functionality, performance, and security required to accomplish those objectives. An overview of the design considerations for the communication network will be discussed. As the current technological trend continues so will the future functionality - in particular where remote access and the cloud are concerned. Communication network design to perform this current functionality as well as support these future capabilities is the topic of this paper.","PeriodicalId":67291,"journal":{"name":"中国石油和化工(企业版)","volume":"31 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86585359","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

Cool facts about cooling electric motors 关于冷却电动机的酷事实

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666044

C. Yung

引用次数: 2

Best practices for motor control center protection and control 电机控制中心保护和控制的最佳实践

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666027

S. Manson, H. Floyd, B. Hughes, R. Kirby

{"title":"Best practices for motor control center protection and control","authors":"S. Manson, H. Floyd, B. Hughes, R. Kirby","doi":"10.1109/PCICON.2013.6666027","DOIUrl":"https://doi.org/10.1109/PCICON.2013.6666027","url":null,"abstract":"Low-voltage motor control centers (MCCs) are numerous and consume a large portion of maintenance and operator interaction in an industrial power distribution system. The extensive human interaction with these low-voltage (less than 1,000 V) circuits makes a low-voltage MCC a location of significant potential hazard. The large number of low-voltage MCC circuits results in significantly more human interface time with low-voltage MCC equipment than with medium-voltage MCCs and switchgear. Modern protection and control systems derived from medium-voltage (1,000 V to 38 kV) and high-voltage (38 to 765 kV) power systems have much to offer low-voltage MCC systems. Proactive maintenance indicators based on load characteristics, motor start characteristics, and thermal measurements are described. Time synchronization, modern Ethernet-based protocols, sequence of events records, oscillography (COMTRADE), monitoring and alarming for protection functions, and other previously standard features in medium- and high-voltage protective relays are available in modern low-voltage MCC protective relays. Increased safety in the form of advanced protection elements and arc-flash detection are now also available. This paper focuses on the philosophy of a comprehensive low-voltage MCC protection and control system.","PeriodicalId":67291,"journal":{"name":"中国石油和化工(企业版)","volume":"44 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83024695","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: 5

Machine vibrations and diagnostics the world of ISO 机器振动和诊断的世界ISO

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666052

H. Kuemmlee, Thomas Gross, J. Kolerus

引用次数: 10

Equipment Protection Levels (Documenting risk assessment when classifying zone areas) 设备防护等级(在对区域进行分类时记录风险评估)

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666054

D. Burns, P. Kelly, R. Wigg

{"title":"Equipment Protection Levels (Documenting risk assessment when classifying zone areas)","authors":"D. Burns, P. Kelly, R. Wigg","doi":"10.1109/PCICON.2013.6666054","DOIUrl":"https://doi.org/10.1109/PCICON.2013.6666054","url":null,"abstract":"The IEC-based term “Equipment Protection Levels (EPLs)“ refers to a disciplined process for identifying and selecting equipment for installation in hazardous (classified) locations. This disciplined process involves special equipment markings, an optional comprehensive risk assessment after area classification, and a selection criteria to identify the equipment that can be installed in hazardous (classified) locations. The optional comprehensive risk assessment involved with this process is subsequent to the classification of the area, and may allow for the selection of equipment that would not normally be associated with the involved area classification designation. And while the term EPLs may be relatively new and all aspects of the concept not fully implemented in the US, the concept of assessing the risks and consequences associated with a classified area, and the utilization of mitigation methodologies to address the selection of equipment for a given classified area, is not new. For example, the use of combustible gas detection systems and pressurized enclosures are common mitigation methodologies in US classified areas. A broad-based perspective on adoption and implementation of all aspects of these EPL concepts in the US will be provided by representatives from US codes & standards, product certification, area classification and installation communities.","PeriodicalId":67291,"journal":{"name":"中国石油和化工(企业版)","volume":"22 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86715919","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

Rotor hot spot detection and resolution in large oil and gas industry motors 大型油气工业电机转子热点检测与分辨

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666046

S.S. Al-Ali, R. Dabbousi

引用次数: 6

A risk based approach for prioritizing electrical equipment replacement and repair 基于风险的电气设备更换和维修优先排序方法

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666026

C. Cayanan, R. Navarro, Ernie Wagner

{"title":"A risk based approach for prioritizing electrical equipment replacement and repair","authors":"C. Cayanan, R. Navarro, Ernie Wagner","doi":"10.1109/PCICON.2013.6666026","DOIUrl":"https://doi.org/10.1109/PCICON.2013.6666026","url":null,"abstract":"Electrical infrastructure equipment in the petrochemical and/or oil and gas industry in North America is generally 40 or more years old. The life and reliability of electrical equipment in this age range can be compromised due to operating conditions such as exposure to moisture and chemicals, loading, temperature, vibration, and mechanical stress over the life of the equipment. Electrical equipment operating and life cycle philosophies tend to vary from age based replacement to run-to-failure. This results in an ad-hoc approach for determining the appropriate time for equipment replacements or major repairs. Limited resources, funding, and other competing projects exacerbate the issue. An operating and life cycle management philosophy using preventive and predictive maintenance results to prioritize equipment replacements and/or improvement will help optimize how to determine when equipment repair or replacement is justified. This paper will describe a systematic risk based approach of prioritizing electrical equipment replacement and repair projects to improve electrical reliability and safety. The approach uses probability and consequence techniques for equipment repair or replacement.","PeriodicalId":67291,"journal":{"name":"中国石油和化工(企业版)","volume":"1 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76361365","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

Protection system design ship and offshore vessels — An overview 船舶和近海船舶的防护系统设计。概述

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666030

Moni Islam, K. Garg, Pat Patel, S. Shah

引用次数: 3

Advances in protective device interlocking for improved protection and selectivity 保护装置联锁提高保护和选择性的研究进展

中国石油和化工(企业版) Pub Date : 2013-10-16 DOI: 10.1109/PPIC.2014.6871164

M. Valdes, J. Dougherty

{"title":"Advances in protective device interlocking for improved protection and selectivity","authors":"M. Valdes, J. Dougherty","doi":"10.1109/PPIC.2014.6871164","DOIUrl":"https://doi.org/10.1109/PPIC.2014.6871164","url":null,"abstract":"The protection engineer's challenge is balancing protection and system reliability (selectivity). Engineers may bias towards protection at the cost of system reliability or towards desired (or code required) selectivity, at the cost of protection. The need for compromise is often accepted as an unalterable reality. Simultaneously, the need for greater personnel safety has added a desire for space protection in addition to the usual bus protection imperative. The Industry has provided devices, techniques and schemes to minimize, and even eliminate, this compromise. Tools include smarter instantaneous sensing algorithms, differential protection, zone-selective-interlocking and arc flash relays. Zone-selective-interlocking is a cost effective solution for low voltage (LV) and medium voltage (MV) applications. Today zone-selective-interlocking spans different voltages, between inverse protection characteristics, such as short-time slopes and fast instantaneous protection, in both low and MV systems. However, traditional schemes must still nest pickup current thresholds to accommodate sensing tolerances. Arc flash relays have emerged as excellent space protectors but present concerns in LV applications. This paper reviews recent improvements in zone-selective-interlocking capabilities and presents schemes, developed by the authors, which eliminate the need for nesting pickup levels of multiple devices and for successfully mixing arc flash and current sensing devices into one system to simultaneously provide fast, reliable and sensitive protection.","PeriodicalId":67291,"journal":{"name":"中国石油和化工(企业版)","volume":"8 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2013-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85179753","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: 22

Optimlzing system efficiency using premlum efficient motors 采用优质高效电机优化系统效率

中国石油和化工(企业版) Pub Date : 2013-09-01 DOI: 10.1109/PCICon.2013.6666023

R. Lawrence, David Miller

{"title":"Optimlzing system efficiency using premlum efficient motors","authors":"R. Lawrence, David Miller","doi":"10.1109/PCICon.2013.6666023","DOIUrl":"https://doi.org/10.1109/PCICon.2013.6666023","url":null,"abstract":"Engineering, in its variety of disciplines, has always been to overcome challenges. The present overriding challenge is to maximize energy efficiency and reduce energy usage. A significant stage in accomplishing this challenge is the emphasis on the installation of premium efficient motors compliant with National Electrical Manufacturers Association (NEMA) Standard MG1-2011 table 12-12 Premium Efficiency Electric Motors. All efforts to improve energy efficiency and reduce energy consumption are good. Increasing the efficiency of electric motors is fundamentally a correct approach. However, it is necessary that the effects of increased motor efficiency be fully understood and broadly utilized in order to prevent unexpected effects on the system that reduce or negate energy savings. Energy efficient motors run faster than conventional efficiency motors; this must be taken into account when predictions of energy savings are undertaken. It is essential that the system as a whole is addressed for the purpose of assessing energy use and the potential for energy savings. Improved single component performance within the system rarely produces the expected economies and may even be the source of disappointment when the predicted savings are not realized.","PeriodicalId":67291,"journal":{"name":"中国石油和化工(企业版)","volume":"19 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75029746","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