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Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988.最新文献

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Considerations in maintaining process continuity during voltage dips while protecting motors 在电压下降期间保持过程连续性的考虑因素，同时保护电机
Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988. Pub Date : 1988-05-02 DOI: 10.1109/ICPS.1988.10974
S. Mulukutla, E.M. Gulachenski
{"title":"Considerations in maintaining process continuity during voltage dips while protecting motors","authors":"S. Mulukutla, E.M. Gulachenski","doi":"10.1109/ICPS.1988.10974","DOIUrl":"https://doi.org/10.1109/ICPS.1988.10974","url":null,"abstract":"The problem of transients and criteria for safe reclosing or transfer of several motors on the same bus are presented. References are given for modeling induction and synchronous motors, and also for determining the currents and torques due to out-of-phase reclosing. Various protective schemes against out-of-phase reclosing and transfer as well as methods of riding through voltage dips are discussed. Application of a particular method depends on the individual characteristics of each electrical system and the process that it serves.<<ETX>>","PeriodicalId":201639,"journal":{"name":"Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117227059","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
What power system problems caused by drive static converters should the static power converter solve? 由驱动静态变流器引起的电力系统问题，静态变流器应该解决哪些问题?
Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988. Pub Date : 1988-05-02 DOI: 10.1109/ICPS.1988.10983
R. P. Stratford
{"title":"What power system problems caused by drive static converters should the static power converter solve?","authors":"R. P. Stratford","doi":"10.1109/ICPS.1988.10983","DOIUrl":"https://doi.org/10.1109/ICPS.1988.10983","url":null,"abstract":"Two major characteristics that need to be addressed in the next generation of static power converters used for motor drives are considered. These are: (1) minimize harmonic current generation introduced into the power system; and (2) minimize the VAR requirements from the power system (improve power factor at all operating levels).<<ETX>>","PeriodicalId":201639,"journal":{"name":"Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988.","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123846949","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
Use of low-pass filters to protect equipment from transient overvoltages on the mains 使用低通滤波器保护设备免受市电瞬态过电压的影响
Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988. Pub Date : 1988-05-02 DOI: 10.1109/ICPS.1988.10979
R. B. Standler
{"title":"Use of low-pass filters to protect equipment from transient overvoltages on the mains","authors":"R. B. Standler","doi":"10.1109/ICPS.1988.10979","DOIUrl":"https://doi.org/10.1109/ICPS.1988.10979","url":null,"abstract":"The design of commercial low-pass filter modules for equipment connected to the low-voltage supply mains is reviewed. Problems of using these filters to protect electronic equipment from damage or upset by high-voltage transients on the mains are discussed. The design and performance of circuits that incorporate both overvoltage protection and a low-pass filter are discussed. One circuit is designed for commercial environments, the other of medical equipment in patient care areas. Filters for medical equipment in patient care areas must have very small line-to-ground leakage currents, which make it difficult to provide either overvoltage protection or low-pass filtering. Using an overvoltage-protection low-pass filter is less expensive than using a line conditioner to protect equipment, and, in many instances, the filter may give satisfactory protection.<<ETX>>","PeriodicalId":201639,"journal":{"name":"Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988.","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125487394","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
Operation of UPS on emergency generation 应急发电UPS的运行
Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988. Pub Date : 1988-05-02 DOI: 10.1109/ICPS.1988.10971
W. Davis, R. P. Stratford
{"title":"Operation of UPS on emergency generation","authors":"W. Davis, R. P. Stratford","doi":"10.1109/ICPS.1988.10971","DOIUrl":"https://doi.org/10.1109/ICPS.1988.10971","url":null,"abstract":"The operation of uninterruptible power supplies (UPS) on emergency generation can lead to problems of overheating of the generator due to the unbalanced operation of the UPS. It is pointed out that the design criteria of a UPS are inconsistent with the operation on isolated generation unless the two systems are designed to operate together.<<ETX>>","PeriodicalId":201639,"journal":{"name":"Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988.","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122293915","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
Ground-fault protection and the problem of nuisance tripping of critical feeders 接地故障保护及关键馈线有害跳闸问题
Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988. Pub Date : 1988-05-02 DOI: 10.1109/ICPS.1988.10973
H. Nash
{"title":"Ground-fault protection and the problem of nuisance tripping of critical feeders","authors":"H. Nash","doi":"10.1109/ICPS.1988.10973","DOIUrl":"https://doi.org/10.1109/ICPS.1988.10973","url":null,"abstract":"An attempt is made to look at National Electrical Code (ANSI/NFPA 70-1987) ground-fault protection (GEP) requirements in light of various risk factors. The author evaluates the risk factors related to arcing ground-faults and the possibility of nuisance tripping on critical feeders. The adequacy of state-of-the-art ground-fault protection equipment is examined. Emphasis is on applications to process industries and health-care facilities.<<ETX>>","PeriodicalId":201639,"journal":{"name":"Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130016664","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
Coping with increased demand for emergency and standby power 应对日益增长的应急和备用电源需求
Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988. Pub Date : 1988-05-02 DOI: 10.1109/ICPS.1988.10970
N. Nichols
{"title":"Coping with increased demand for emergency and standby power","authors":"N. Nichols","doi":"10.1109/ICPS.1988.10970","DOIUrl":"https://doi.org/10.1109/ICPS.1988.10970","url":null,"abstract":"Data indicating that commercial power system reliability may be declining are reviewed. Examples of power users who have increasing demands for highly reliable power are presented, and changes that will be required in emergency and standby power systems to meet these demands are discussed. ANSI/IEEE Standard 446-1987, in its updated form, is suggested as an aid to designers in meeting these new requirements.<<ETX>>","PeriodicalId":201639,"journal":{"name":"Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988.","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130174288","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
Ampacity derating for underground cables 地下电缆的降容
Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988. Pub Date : 1988-05-02 DOI: 10.1109/ICPS.1988.10984
F. Shokooh, H. M. Knutson
{"title":"Ampacity derating for underground cables","authors":"F. Shokooh, H. M. Knutson","doi":"10.1109/ICPS.1988.10984","DOIUrl":"https://doi.org/10.1109/ICPS.1988.10984","url":null,"abstract":"A simple manual method of utilizing adjustment factors to derate cable ampacities for underground installations is presented. The ampacity adjustment factors reported are obtained based on the Neher McGrath method. Various items that affect ampacities of cables are discussed in practical terms and examples are included to illustrate the method and its use.<<ETX>>","PeriodicalId":201639,"journal":{"name":"Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130718239","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
Power distribution design for high power shortwave transmitter facilities 大功率短波发射机设备配电设计
Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988. Pub Date : 1988-05-02 DOI: 10.1109/ICPS.1988.10975
R.C. Aasen
{"title":"Power distribution design for high power shortwave transmitter facilities","authors":"R.C. Aasen","doi":"10.1109/ICPS.1988.10975","DOIUrl":"https://doi.org/10.1109/ICPS.1988.10975","url":null,"abstract":"The Voice of America radio service is in the process of designing and building several new transmitting facilities as a part of its modernization program. The design of the electrical power distribution systems for these new facilities posed unique design problems. For example, although US (ANSI, IEEE, NEMA, NFPA, and military) standards were preferred for design, local regulations and codes had to be followed, unless waivers were obtained. The development of the electrical power distribution design for these facilities is reported.<<ETX>>","PeriodicalId":201639,"journal":{"name":"Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128838587","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
Closed transition switching of essential loads 必要负载的闭合过渡开关
Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988. Pub Date : 1988-05-02 DOI: 10.1109/ICPS.1988.10972
R. Castenschiold
{"title":"Closed transition switching of essential loads","authors":"R. Castenschiold","doi":"10.1109/ICPS.1988.10972","DOIUrl":"https://doi.org/10.1109/ICPS.1988.10972","url":null,"abstract":"In recent years, there has been an increasing number of closed transition transfer switches applied in emergency and standby power systems. Such transferring without interruption has been primarily for computer and other essential loads that are vulnerable to momentary losses of power. It is suggested that recent developments and application requirements now make closed transition switching a viable approach for improved performance in transferring all types of essential loads.<<ETX>>","PeriodicalId":201639,"journal":{"name":"Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988.","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124618326","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: 9
Industrial adjustable frequency drive (AFD) systems-1988 update 工业可调频率驱动(AFD)系统-1988年更新
Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988. Pub Date : 1900-01-01 DOI: 10.1109/ICPS.1988.10982
I.M. Macdonald
{"title":"Industrial adjustable frequency drive (AFD) systems-1988 update","authors":"I.M. Macdonald","doi":"10.1109/ICPS.1988.10982","DOIUrl":"https://doi.org/10.1109/ICPS.1988.10982","url":null,"abstract":"Various forms of adjustable frequency link converter drives (AFDs) presently in vogue are classified according to their power electronic circuit configurations. Consideration is given to the factors influencing drive reliability, maintainability, and the AFD impact on the utility supply network. The adoption of a particular control strategy for an AFD also influences drive performance, which is discussed.<<ETX>>","PeriodicalId":201639,"journal":{"name":"Conference Record, Industrial and Commercial Power Systems Technical Conference, 1988.","volume":"38 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":"122078139","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
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