Medium voltage switchgear and circuit breaker life extension.

Abstract edium Voltage (MV) metal clad switchgear is referred to as the voltage class from 2.4 kV to 38 kV. Technological advances in circuit breaker designs over the last 20 years have given rise to retrofit options in lieu of complete replacement for older outdated circuit breaker technology. This paper examines the four MV breaking techniques that exist in industry and investigates various retrofit versus refurbish options for switchgear modernization and life extension.
Keywords: Equipment, MV breaking mediums, MV distribution equipment, Switchgear modernization.
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Summary: N/A
Publication: CIM Bulletin
Author(s): D.G. Brophey, J.A. O'Neill
Keywords: Technical Note.
Issue: 1024
Volume: 91
Year: 1998
Text
Summary: The assessment of integrity in plants is discussed, together with the codes that are being developed for in service evaluation of engineering fitness for service. The use of Risk Based Inspection is described and some examples are provided of the evaluation of in service components in which flaws have been detected. An example of the assessment of the structure of a mine processing facility is described, and application of Risk Based Inspection and plant assessment procedures to mines is...
Publication: CIM Bulletin
Author(s): I. Le May
Keywords: Equipment, Plant assessment procedures, Risk Based Inspection.
Issue: 1024
Volume: 91
Year: 1998
Text
Summary: Although concentrated efforts have been made to deplete PCB transformers from the Canadian environment, numerous transformers (as well as ballasts, capacitors and magnets) continue to exist throughout the Canadian mining industry. The existing installed base is slowly being phased out as environmental issues come under increasingly high profile. The following article identifies the potential problems of owning PCB transformers and offers some solutions for their removal, disposal and...
Publication: CIM Bulletin
Author(s): K. Heid
Keywords: PCB management, Environmental issues, Transformer replacement.
Issue: 1024
Volume: 91
Year: 1998
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