Environmentally Friendly Compact Air-Insulated High-Voltage Substations

Maurizio Albano, A. Manu Haddad, Huw Griffiths and Paul Coventry
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Maurizio Albano: School of Engineering, Cardiff University, Cardiff CF24 3AA, UK
A. Manu Haddad: School of Engineering, Cardiff University, Cardiff CF24 3AA, UK
Huw Griffiths: Electrical Engineering Department, Khalifa University of Science and Technology, Abu Dhabi 2533, UAE
Paul Coventry: National Grid, Warwick CV34 6DA, UK

Energies, 2018, vol. 11, issue 9, 1-14

Abstract: This paper investigates the possible options for achieving a substantial reduction in a substation footprint using air-insulated switchgear as a more environmentally-friendly alternative to gas-insulated substations that use SF 6 gas. Adopting a new approach to surge arrester location and numbers, International Electrotechnical Commission (IEC) minimum clearances can be successfully selected instead of the maximum clearances as currently adopted by many utilities, as is the case in the UK. In addition, innovative alternative compact busbar arrangements using vertical and delta configurations have been proposed by the authors. A further opportunity for compaction is offered by the application of compact and integrated technology offered from several manufacturers. The full overvoltage control within the entire substation under any surge condition is a key aspect of the feasibility of this type of substation. This work demonstrates that the new design option can be an attractive alternative for future substation configuration with minimum footprint.

Keywords: surge arresters; compaction; EMTP; insulation; lightning; switching; substations; surges (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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