4.7.2. Campus Business Continuity Programme

4.7.2. Campus Business Continuity Programme • Braamfontein Generator capacity upgrade

OPCBCOA_TO1 ThegeneratorcapacityupgradeprojectfortheUniversity’s Braamfontein Campuses (East and West) generator stations includes the increase of total combined generator capacity from 7.5MVA to 12.5MVA. This upgrade serves to address the existing generator capacity shortfalls as well as accommodating expected increased demand from new infrastructure developments. The upgrade further enables the consolidation of bulk electrical supplies for buildingsadjacenttotheBraamfonteinCampuswhichcurrentlyhaveindependentcouncil supplies to ultimately ensure these buildings have access to the generator stations. The project’s original scope has been completed, with the additional two 2.5MVA diesel generators successfully installed and commissioned. The additional scope to repair the existing generator silencer units (six units in total), which have deteriorated over time due to rain ingress, have also been completed. Photographs of the newly installed generators are included to the right.

• Substation upgrade This project involved the internal building refurbishment of main distribution substations across the Braamfontein andParktownCampuses,managedtogetherwithSubstationMediumVoltageSwitchgearReplacementProgramme. Boththeswitchgearreplacements(34unitsintotal)andsubstationrefurbishmentshavebeencompleted.Finalsnagging and additionally identified minor reticulation improvements are in progress and is expected to be completed byendofSeptember2021.Afewexamplesofthenewswitchgearandexternalminiaturesubstationunitsinstalled are illustrated (pictures below).

• Cultural Precinct electrical ring main connection This project, involves the integration of University precincts in Braamfontein, which currently have separate councilelectricalsupplies,intotheUniversity’sbulkelectrical network on the Braamfontein Campus. This aims to ensure all Braamfontein precincts have access to the centralisedbackupgeneratorsystemsaswellasreducing the number of individual utility accounts thereby reducingoperationalandfinancialmanagementthereof. The implementation of this project was dependent on the final completion of the Braamfontein campus generator capacity upgrade project referred to above, as this integration will ultimately increase the demand on the existing generator services. The first phase of the project which involves the new supply integration, via the newly installed external miniature substation unit for the Cultural Precinct on the South East section of the Braamfontein Campus East, is now complete. Photographs of the new installation are shown above.