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Application of Microprocessors to the Control/Monitoring of Transmission and Distribution Equipment, IEE Colloquium on

Date 2 Jun 1989

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Displaying Results 1 - 12 of 12
  • Monitoring protection and switchgear performance on transmission and distribution systems

    Publication Year: 1989, Page(s):11/1 - 11/5
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (212 KB)

    The author discusses ways of utilising fault recorders to provide information which can be used in monitoring protection and switchgear performance. It is argued that the information can be used to reduce switchgear maintenance costs. Comparisons are made between the specifications, and methods of installation, for transmission and distribution system applications View full abstract»

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  • Microprocessor developments for the distribution system from Capenhurst

    Publication Year: 1989
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (40 KB)

    Capenhurst has been involved in the use of microprocessor-based equipment on the distribution system for some years. The author looks at the transient earth voltage set of instruments which measure partial discharges; the loss tangent meter which determines the purity of capacitive reactance; and the SLURP detector which measures the level of free water in iron-clad switchgear View full abstract»

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  • PLC controlled cascade intertripping on the Western Isles Link

    Publication Year: 1989, Page(s):15/1 - 15/3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (128 KB)

    At present, the Western Isles (Harris, Lewis, North and South Uist) operate as an isolated system, with electricity being provided by diesel generation and distributed at 33 kV and below. Zn order to make the system more economical a connection to Scotland has been built. The author describes a programmable logic controller (PLC) for cascade intertripping so that the Island system will not collaps... View full abstract»

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  • Third generation protection relay-simply a matter of time

    Publication Year: 1989, Page(s):10/1 - 10/3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (120 KB)

    There is now a definite and irreversible trend towards microprocessor equipment. Its use in third generation protection relays will make them capable of protection as well as acting as a data acquisition centre and circuit controller View full abstract»

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  • Microprocessor operated restoration of supply equipment

    Publication Year: 1989
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (44 KB)

    The author describes the application by Eastern Electricity of a microprocessor controller to restore supply automatically following a fault on a single-circuit 33 kV system near St. Albans. The automatic sequence was required to avoid the very high cost of a duplicate circuit which would otherwise have been necessary. A microprocessor controller was preferred to a conventional electromagnetic rel... View full abstract»

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  • Microprocessor-based testing of protection relays

    Publication Year: 1989, Page(s):12/1 - 12/3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (156 KB)

    To ensure the integrity of electrical transmission and distribution networks it is vital that protection relays are tested on a regular basis. Developments in the automation of relay test sets utilising the latest microprocessor technology now permit more frequent and accurate testing. The application of these new developments to the monitoring of transmission and distribution relays is discussed ... View full abstract»

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  • A microprocessor based system for substation control

    Publication Year: 1989
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (44 KB)

    The substation control system (SCS) is an integrated system for protecting, measuring, control, supervision and reporting. It is a hierarchical structure system based on a station computer which communicates via serial communication buses to a distributed system such as protective relays, control modules and the alarm system. The operative system used is Intels iRMX which is especially suited for ... View full abstract»

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  • Microprocessor based relays in controlling and monitoring power system networks

    Publication Year: 1989, Page(s):17/1 - 1710
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (312 KB)

    Some examples of microprocessor based equipment for controlling and monitoring power system networks are given. These include an autoreclosure relay for transmission systems, an autoreclosure relay for distribution systems and a disturbance recorder. The security of power systems depends very much on the co-ordination of protection, control and monitoring equipment. Provided that these function co... View full abstract»

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  • Trends in transmission substation monitoring using microprocessors

    Publication Year: 1989, Page(s):13/1 - 13/3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (144 KB)

    The author describes some developments which are taking place in the Transmission System in Northern Ireland. These developments include disturbance recorders, protection scheme testing, modern relays, panel and scheme design and telecontrol developments. Trends for the future are also looked at View full abstract»

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  • Electronic winding temperature monitors-a practical interface

    Publication Year: 1989
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (36 KB)

    Electronic winding temperature monitors (EWTM) are now used in over forty installations in the USA and Europe. The EWTM requires a single resistance thermometer to sense the oil temperature and three transformer signals can be directly connected to provide three winding temperature measurements. Selection from a number of standard modules allows several combinations of the available functions to b... View full abstract»

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  • Microprocessor based automatic synchronisers

    Publication Year: 1989, Page(s):18/1 - 18/2
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (76 KB)

    When a generating set is started it is not normally possible to parallel the generator with another set or power system by closing the generator circuit breaker immediately. A number of parameters need to be monitored and controlled before the breaker may close. The author looks at microprocessor-based automatic synchronisers can control and monitor these parameters. They may also produce a govern... View full abstract»

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  • IEE Colloquium on `Application of Microprocessors to the Control/Monitoring of Transmission and Distribution Equipment' (Digest No.91)

    Publication Year: 1989
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (392 KB)

    The following topics were dealt with: applications of microprocessors in the control and monitoring of distribution networks, substations, winding temperature, electricity supply restoration; microprocessor-based relays; fault recorders; PLC controlled cascade intertripping, and automatic synchronisers View full abstract»

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