中国石油和化工(企业版)最新文献

Monitoring of electrical equipment failure indicators and zero-planned outages: Past, present and future maintenance practices 监控电气设备故障指标和零计划停机:过去，现在和未来的维护实践

中国石油和化工(企业版) Pub Date : 2013-12-11 DOI: 10.1109/PPIC.2015.7165712

G. Paoletti, G. Herman

引用次数: 12

Review of upcoming motor efficiency regulations in U.S. 对美国即将出台的电机效率法规进行审查

中国石油和化工(企业版) Pub Date : 2013-12-11 DOI: 10.1109/PCICON.2013.6666013

J. Malinowski, Bill Hoyt

引用次数: 1

Electrical equipment in cold weather applications 在寒冷天气应用的电气设备

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666016

B. Keane, G. Schwarz, Peter Thernherr

引用次数: 10

Application of FMEA to optimize selection of hazard mitigation measures 应用FMEA优化减灾措施的选择

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666037

Jeremy D. Smith

{"title":"Application of FMEA to optimize selection of hazard mitigation measures","authors":"Jeremy D. Smith","doi":"10.1109/PCICON.2013.6666037","DOIUrl":"https://doi.org/10.1109/PCICON.2013.6666037","url":null,"abstract":"Failure Mode and Effects Analysis is a common analytical method utilized in product development, manufacturing, quality control, and maintenance to better understand potential failure modes and the effects that design changes or process changes would have on those failure modes. Valdes [1] has proposed an adaptation of FMEA suitable for analyzing hazards and the effects of various hazard mitigation measures in the context of specific tasks that are performed on hazardous equipment or a hazardous system. The effects of each hazard mitigation solution on the frequency each task is performed, likelihood of an incident, and severity of the resultant incident are analyzed for each activity performed on the system. The relative hazard reduction of the mitigation solution may then be compared with the cost of implementing the solution. Multiple solutions can be analyzed and the level of hazard reduction vs. the cost of implementing the solution can be ranked according to cost-effectiveness. This analysis can be used to develop a business case for implementing hazard mitigation projects or features within planned projects. This paper details how one facility utilized the FMEA-based hazard analysis tool developed by Valdes to assess hazards present in existing facilities and new facilities that were in the design stages.","PeriodicalId":67291,"journal":{"name":"中国石油和化工(企业版)","volume":"1 1","pages":"1-18"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84364064","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

Installation and maintenance challenges of NEMA Type 7 hazardous area enclosures NEMA 7型危险区域外壳的安装和维护挑战

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666049

J. Manahan, Y. Zhao, Michael Foster, Joseph T. Deegan

{"title":"Installation and maintenance challenges of NEMA Type 7 hazardous area enclosures","authors":"J. Manahan, Y. Zhao, Michael Foster, Joseph T. Deegan","doi":"10.1109/PCICON.2013.6666049","DOIUrl":"https://doi.org/10.1109/PCICON.2013.6666049","url":null,"abstract":"National Electrical Manufacturers Association (NEMA) Type 7 explosion-proof enclosures are widely regarded for their robust construction and dependable operation. These enclosures are sustained without the additional safety systems required to ensure operation of a purged and pressurized piece of equipment. Similarly, NEMA Type 7 enclosures are maintained without the costly component inventory which may be required to ensure maximum uptime of non-serviceable encapsulated equipment. NEMA Type 7 enclosures are generally constructed of cast aluminum or iron-based materials and are capable of withstanding numerous explosive events. NEMA Type 7 enclosures ensure hazardous area safety by extinguishing the flame through precision machined surfaces and controlling structural deformation should an explosive event occur. If maintenance practices are not designed to ensure the integrity of the enclosure, repeated access to internal equipment and oxidation of critical surfaces may lead to the loss of the enclosure's explosion-proof protection. The paper reviews maintenance best practices and common errors with their potential consequences. The likelihood of error may be reduced by employing a variety of available technologies. Each technology will be explained based on case study examples to illustrate the reduction in total cost of ownership for equipment when best practices are observed.","PeriodicalId":67291,"journal":{"name":"中国石油和化工(企业版)","volume":"38 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85905501","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

High power dense electric propulsion motors 大功率密集电力推进马达

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666058

H. Karmaker, Dean Sarandria, Mantak Ho, James Feng, D. Kulkarni, Gabriel Rupertus

{"title":"High power dense electric propulsion motors","authors":"H. Karmaker, Dean Sarandria, Mantak Ho, James Feng, D. Kulkarni, Gabriel Rupertus","doi":"10.1109/PCICON.2013.6666058","DOIUrl":"https://doi.org/10.1109/PCICON.2013.6666058","url":null,"abstract":"The paper describes the results of design and analysis studies performed by the authors for comparison of predicted performance of an electric propulsion motor using conventional and emerging technologies. Specifically, a modern squirrel cage induction motor design is compared to both a permanent magnet motor with high energy magnets and a high temperature superconducting motor using second generation superconductor. The selected baseline design is a ship propulsion motor in operation rated at 5000 HP 1800 RPM. The results of calculated performance and comparative studies among the various technologies show great potential for increasing the power density using the second generation high temperature superconducting technology. Using the currently available second generation superconductor current capabilities, the achieved power density of the propulsion motor is over twice that of the induction motor. Further investigations are being carried out to improve the superconductor performance for future designs for an on-going project sponsored by the United States Department of Energy to reduce the cost of the superconductor for future commercial applications of the high temperature superconducting technology.","PeriodicalId":67291,"journal":{"name":"中国石油和化工(企业版)","volume":"29 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":"88438793","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: 10

Black-out test vs. UV camera for corona inspection of HV motor stator endwindings 高压电机定子端部电晕检测的断电试验与紫外相机对比

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666010

M. Stranges, S. Haq, D. Dunn

{"title":"Black-out test vs. UV camera for corona inspection of HV motor stator endwindings","authors":"M. Stranges, S. Haq, D. Dunn","doi":"10.1109/PCICON.2013.6666010","DOIUrl":"https://doi.org/10.1109/PCICON.2013.6666010","url":null,"abstract":"As part of a factory acceptance test program for high voltage motors, end users sometimes specify a black-out test. This is a traditional offline inspection where the stator is placed in complete darkness, each phase is energized to 115% of rated line-to-neutral voltage, and both ends of the stator are observed to determine the presence, location and severity of endwinding surface partial discharges (PD). The setup for the test may be complex and risky due to the need for observers to be standing in darkness close to the energized parts of the stator. The test results are qualitative and strongly depend on the observer's eyesight and individual perception. A safer and more accurate alternative is to use an ultraviolet (UV) camera or viewer. The observed PD activity may be observed in ambient lighting, recorded, and quantified through simultaneous offline PD measurements. This paper describes the two inspection techniques, and presents experimental validation of the UV corona camera inspection method as a suitable replacement for a black-out test. Sample 13.8-kV coils were wound in a fixture simulating their relationship in a stator winding, and subjected to high-potential tests while observed under black-out conditions and with a UV corona camera in ambient lighting. The stator windings from two high voltage compressor motors were inspected using the same camera. Recorded images of the observed discharges and measured PD activity in the sample coils and stator winding were used to compare the evaluation by each test method.","PeriodicalId":67291,"journal":{"name":"中国石油和化工(企业版)","volume":"9 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73056978","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: 8

Dry low emission gas turbine industrial power systems 干式低排放燃气轮机工业动力系统

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666055

T. Hazel, G. Peck, H. Mattsson

{"title":"Dry low emission gas turbine industrial power systems","authors":"T. Hazel, G. Peck, H. Mattsson","doi":"10.1109/PCICON.2013.6666055","DOIUrl":"https://doi.org/10.1109/PCICON.2013.6666055","url":null,"abstract":"Gas turbines often provide the power necessary for the process at production sites. These power systems are much different than the utility grid. Being smaller they are subject to large disturbances causing wide variations in turbine power over short periods of time. These power swings can have negative effects on some types of turbines designed to have low emission of nitrogen oxides. Such turbines use different firing methods at low and high values of power. The transition between these ranges and firing methods can lead to flame out. Turbines struggling to maintain power system stability at an industrial facility may succumb to the disturbance resulting in a system collapse and loss of production. Regulations concerning emissions are becoming more severe so this problem will become more challenging. Turbine firing techniques that allow low emissions for all values of output power are reviewed. The benefits this offers to the power system and the design of the Power Management System are also discussed. Using only one firing technique eliminates the risk of flameout and enhances power system availability. Another advantage of this firing technique is better parallel operation of turbines, especially when machines have different ratings. Operating all turbines at the same relative power improves stability since all machines will react by the same amount during disturbances.","PeriodicalId":67291,"journal":{"name":"中国石油和化工(企业版)","volume":"108 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80910761","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

Area classification for explosive atmospheres: Comparison between European and North American approaches 爆炸性环境的区域分类:欧洲和北美方法的比较

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666015

R. Tommasini, E. Pons, F. Palamara

引用次数: 17

The application of power factor correction capacitors to reserve spare capacity of existing main transformers 功率因数校正电容器在现有主变压器备用容量中的应用

中国石油和化工(企业版) Pub Date : 2013-11-21 DOI: 10.1109/PCICON.2013.6666047

Basem A. Helmi, Merwyn D'Souza, Brian A. Bolz

{"title":"The application of power factor correction capacitors to reserve spare capacity of existing main transformers","authors":"Basem A. Helmi, Merwyn D'Souza, Brian A. Bolz","doi":"10.1109/PCICON.2013.6666047","DOIUrl":"https://doi.org/10.1109/PCICON.2013.6666047","url":null,"abstract":"As a result of major revamp and several expansion projects to a 30-year old world-class petrochemical refinery, the total refinery power demand increased from 67MVA to 100MVA with a corresponding lagging power factor decrease from 93% to 89% at the 34.5kV system. The refinery has a secondary selective system and gets its power from utility company via two main power transformers. Each transformer is rated 60/80/100MVA, ONAN/ONAF/OFAF, with 115kV primary and 34.5kV secondary. The latest expansion project was committed to reserve at least 10MVA in each transformer for future growth in a single-ended condition while supporting the total refinery load. Several options were considered and evaluated to enhance the transformer's forced-cooled (OFAF) capacity (100MVA). One option was to improve the existing cooling system of each transformer. Another option was to replace both transformers with new ones having higher MVA ratings. The option of installing capacitor banks was evaluated and accepted by the project management because of its cost effectiveness, practicality, reliability, and constructability. This option relieves transformers a certain amount of reactive load (VAR) from the total apparent load (kVA) by installing two banks of power factor correction capacitors at their 34.5kV secondary sides. As a result, each main transformer can provide the extra 10 MVA capacity for future load growth.","PeriodicalId":67291,"journal":{"name":"中国石油和化工(企业版)","volume":"1 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90316377","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