CJR’s principal, Justin Read was GM Industrial at Pensar Utilities Pty Ltd in 2015 when this project was awarded by Gold Coast Airport to design and install a new intake substation comprising 13 panels of ABB Unigear 11kV switchgear. When CJR was formed, Justin and his team completed this project and subsequently were engaged both as a subcontractor to Pensar and directly by Gold Coast Airport to provide ongoing design and construction services including a significant augmentation to the switchboard in 2018- 19.
Scope of Works included:
- Detailed design, selection procurement and delivery management 11kV switchboard
- Design, selection, procurement and supervision of installation of PLC cabinet, battery charger, LV MSB
- Specification of switchroom building to house switchgear and ancillary equipment
- Design, delivery management for 11kV feeder from NISS to AFP building
- Design, procurement, installation and testing of vacuum circuit breaker and protection equipment for spare 11kV feeders
- Design, selection installation and testing in conjunction with Energex of switchgear and protection relays to facilitate parallel 1250A 11kV incomers
Project Highlights:
- Significant sub-system interface design: 11kV switchgear; Energex SEL monitoring cabinet; Energex metering cabinet; PLC cabinet; battery charger;
- 13 panels of ABB Unigear 11kV withdrawable switchgear
- Directional and feeder differential protection on parallel 1250A incomers
- Sensitive earth-fault protection via core- balance CTs on feeders with overhead line component
- Feeder cable thermistors
- 100kVA ancillary services transformer
- Incomer status monitoring via SEL2505 relays
- Allen-Bradley ControlLogix distributed PLC system for switchboard monitoring and control
- Remote SCADA operator panel
