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Petroleum and Chemical Industry Conference, 1992, Record of Conference Papers., Industry Applications Society 39th Annual

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  • Record of Conference Papers. Industry Applications Society 39th Annual Petroleum and Chemical Industry Conference (Cat. No.92CH3186-4)

    Publication Year: 1992
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    Freely Available from IEEE
  • Computer controlled load-shedding for a co-generation facility

    Publication Year: 1992, Page(s):247 - 254
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    The installation of a load shedding and load restoration system used in conjunction with a cogeneration installation is described. When the utility source fails, the generators will be shut down by their under frequency relays unless the overload is shed. The load shedding system continuously monitors the sheddable loads as well as the generator and utility source capabilities. When any of these s... View full abstract»

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  • Static power converters, harmonics, the power system and you

    Publication Year: 1992, Page(s):255 - 263
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (728 KB)

    The essential reasons why static power converters (SPCs) possess operating characteristics that are a cause of concern with regard to the power system are described. Aspects of the power system whereby the SPC AC line side characteristics can result in unfavorable effects are presented. Application guidelines and system solution concepts derived from analysis and practice are provided. The focus i... View full abstract»

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  • CASE tools and interactive process modeling accelerate the software development cycle for refined petroleum storage tank vapor recovery

    Publication Year: 1992, Page(s):265 - 270
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (612 KB)

    A petroleum storage tank vapor recovery system is described. The project involves development of many different types of software for different platforms, including multiple programmable logic controller (PLC) code development. The CASE tool allows a structured and efficient approach to the project. It makes possible the design and is useful in the area of documentation. The potential of CASE tool... View full abstract»

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  • An application of PLC's as an RTU in SCADA systems

    Publication Year: 1992, Page(s):271 - 274
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    Pipeline operations use a master terminal unit (MTU) to acquire information from remote terminal units (RTUs). The ability to configure PLCs as RTUs or sub-MTUs provides capabilities for interfacing existing supervisory control and data acquisition (SCADA) systems. One inherent problem has been interfacing the PLC with different MTU protocols and interfacing the PLC with other devices at the remot... View full abstract»

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  • Creating a continuous improvement environment for electrical safety

    Publication Year: 1992, Page(s):275 - 283
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (816 KB)

    Efforts to improve the safety of personnel exposed to industrial electrical hazards may be considered part of an overall strategy to eliminate defects in manufacturing processes. A blueprint for strategy, design, and implementation of processes to link electrical safety to total quality improvement is presented. Applied methods, results, and future strategies are discussed. A continuous improvemen... View full abstract»

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  • Electric and magnetic fields: Equipment and methodology used for obtaining measurements

    Publication Year: 1992, Page(s):285 - 292
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    The health effects of electric and magnetic fields may be determined by recording the electric and magnetic field intensity in the work place. The standards available for conducting a measurement survey are presented. There are two dozen or more instruments available. The selection of the proper instrument to perform the measurements is critical. The methods and pitfalls associated with conducting... View full abstract»

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  • Review of CI Pamphlet No. 139-Electrical Safety in Chlor-Alkali Cell Facilities

    Publication Year: 1992, Page(s):171 - 176
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    The rewrite of the Chlorine Pamphlet 139, Electrical Safety in Chlor-Alkali Cell Facilities is described. The steps taken by the task group in rewriting the pamphlet are described. The survey of electrical incidents in cell facilities is summarized. The major changes to the pamphlet are discussed from both the technical and safety points of view. The pamphlet has been expanded to include new techn... View full abstract»

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  • Electrical safety in hazardous (classified) class I locations

    Publication Year: 1992, Page(s):293 - 299
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB)

    Informed decisions must be made in determining the risk in dealing with flammable gases or vapours and flammable liquids to ensure the safety of personnel and facilities. Past practices, of classification which tends toward either overclassification or underclassification are examined, and the application of probability concepts to hazardous area classification is described. An overview of the Nat... View full abstract»

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  • Stator insulation monitoring of large high voltage motors and generators using online RF techniques in the petrochemical environment

    Publication Year: 1992, Page(s):177 - 183
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    The authors report on RF online monitoring techniques used in a petrochemical environment to determine the health of stator insulation of large high-voltage critical motors and generators. Information is given on broadband RF detection devices used and the interpretation approach adopted. The sensitivity problems of the technique as well as its potential are illustrated by the presentation of sele... View full abstract»

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  • Design guidelines for reducing electromagnetic field effects from 60 Hz electrical power systems

    Publication Year: 1992, Page(s):49 - 56
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    A brief review of the subject of the biological effects of 50/60 Hz fields is presented. Included is a discussion of extremely-low-frequency (ELF) fields to which the public is exposed, and ELF fields that are encountered in a petrochemical refinery. The proposed limits to which humans should be subjected and methods of reducing exposure are presented. Specific methods which may be employed to avo... View full abstract»

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  • For a successful ASD installation. . .look beyond the electronics

    Publication Year: 1992, Page(s):147 - 152
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    The electrical and mechanical design of drive components must suit wiring practices based on recognized industry standards. Safety grounding, medium voltage cable termination, cable training, and electrical clearances are involved. Design shortcomings found during installation of several large 4 kV drives are discussed, together with the corrective actions taken (including the revision of specific... View full abstract»

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  • Safe work practices in the real world

    Publication Year: 1992, Page(s):121 - 129
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (724 KB)

    Safety and electrical training are not an option. There are legal as well as ethical and social responsibilities to reasonably provide information for protection of people. Both high energy and shock hazards must be identified. The amount of training required depends on the frequency and level of exposure to electrical systems. Three different levels are identified for nonelectrical skills. These ... View full abstract»

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  • Cause and analysis of bearing failures in electrical motors

    Publication Year: 1992, Page(s):87 - 95
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (724 KB)

    A methodology for identifying the cause of failure for antifriction bearings used in electric motors is presented. An analysis of the corrective actions required to minimize or prevent reoccurrence of the problem is provided. Specific tabular material on bearing temperature is supplied, and bearing failure patterns are enumerated View full abstract»

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  • Minimizing refinery upset during power interruptions using PLC control

    Publication Year: 1992, Page(s):185 - 195
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (764 KB)

    When a refinery electrical distribution system experiences severe voltage dips or short duration power interruptions, online starters deenergize and motors stop, resulting in plant upset. To minimize the impact of momentary power disturbance, it is desirable that motors used for critical services can be restarted automatically and sequentially. Power disturbance criteria for selecting critical mot... View full abstract»

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  • Standing on one leg: The modernization of a medium voltage distribution system

    Publication Year: 1992, Page(s):217 - 224
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (748 KB)

    The modernization of a plant's medium voltage distribution system to accommodate new and existing loads is discussed. Among the various problems solved was that of providing power for continuous process operation during the utility company's concurrent upgrade of the purchase power facilities. How this was accomplished by means of a technique called `standing on one leg' is described. Also address... View full abstract»

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  • A real-time simulator for industrial electrical power systems

    Publication Year: 1992, Page(s):57 - 60
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB)

    Design criteria and an implementation for a power generation and delivery system simulator are presented. The system is implemented on a PC-based, graphics-intensive, operator-interactive workstation. The simulator provides the operator with the opportunity to practice possible operating conditions. The graphics interface permits realistic simulation and accelerates operator training. By unifying ... View full abstract»

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  • Shaping the future: promoting change within the electric utility industry

    Publication Year: 1992, Page(s):239 - 245
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    An economic crisis with Alberta's oil, gas, and petrochemical industry has produced a change in the business outlook of electric utilities. The industry's challenge was to create a new customer-supplier relationship based on trust. Creating this new relationship was premised on extending the vulnerability beyond the oil and gas industry being served by the monopoly to include the electric supplier... View full abstract»

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  • Safe grounding practices and recommendations for industrial facilities

    Publication Year: 1992, Page(s):165 - 170
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    Grounding has a significant impact on personnel and property safety, and is an integral part of electrical system design. Specific areas relating to safety criteria, system grounding, and equipment grounding that are either neglected or not covered in sufficient detail in presently published standards, guides, and codes are discussed. Some considerations and recommendations are presented. The majo... View full abstract»

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  • Changes in hazardous locations requirements in the 1993 National Electrical Code

    Publication Year: 1992, Page(s):43 - 47
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    The National Electrical Code revision process is discussed, as are many of the proposals incorporated into the 1993 NEC. Nonincendive circuits are contrasted with nonincendive components. Resistivity is no longer used in classifying dusts, and coal is now considered nonconductive. Class II surface temperatures may now be based on the specific dust, not only the group involved. Proposals for Divisi... View full abstract»

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  • Application of a 5500 RPM high speed induction motor and drive in a 7000 HP natural gas compressor installation

    Publication Year: 1992, Page(s):141 - 146
    Cited by:  Papers (12)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    The reasons for the selection, and considerations in the implementation, of high-speed induction motors and variable-frequency drives for a compressor station in an unmanned installation on a gas pipeline are presented. The selection options relevant to the application are reviewed: gas turbine versus motor driver, high-speed motor versus conventional motor, and induction versus synchronous motor.... View full abstract»

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  • Harmonic filtering for the offshore industry

    Publication Year: 1992, Page(s):111 - 120
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (740 KB)

    The application of a large number of adjustable speed drives (ASDs) operating electric submersible pumps (ESPs) on two separate offshore platforms, which are connected to a limited electrical power system on a tanker feeding power to the platforms via subsea power cables, produces high levels of harmonic distortions that can affect the overall system reliability. Such a system is described and dis... View full abstract»

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  • Application of capacitors for power factor correction of industrial electrical distribution systems

    Publication Year: 1992, Page(s):77 - 86
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (708 KB)

    The author summarizes information for determining the proper circumstances for applying capacitors to improve the operating efficiency of an industrial electrical distribution system. The following topics are discussed; the function of capacitors in an electrical power system; calculations to select the appropriate value of capacitance; selection of the optimal location in the distribution system ... View full abstract»

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  • Overall shield protects instrument cable from the effects of lightning

    Publication Year: 1992, Page(s):209 - 215
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (716 KB)

    Lightning can cause damage to electrical systems from direct and induced effects. A study is conducted to devise means to prevent or control the effects of lightning on instrument and control systems. The results indicate that an acceptable approach is to use instrument cables with a relatively thick overall metallic shield grounded at both ends. The overall shield functions as a magnetic shield, ... View full abstract»

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  • Expert system tools applied to power system analysis

    Publication Year: 1992, Page(s):231 - 237
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    When applied to electric power systems expert systems can automate many of the difficult and time-consuming tasks of power system analysis. Several expert system tools for analyzing electric power systems on a personal computer are described. By integrating expert technology with graphical online techniques, the user's understanding of power system performance can be enhanced with visual indicatio... View full abstract»

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