Don Sahong Hydro Power Station – Mekong River Laos
Don Sahong is a run-of-the river 260MW hydro power station located on the Mekong River in southern Laos. McMahon have been involved in the project since 2013 with tender evaluations progressing to technical design reviews and on-going site support and quality monitoring.
UPS Installations
Installation of over 35 Uninterruptible Power Supply (UPS) units within the Watercare water and wastewater distribution network. McMahon Involvement Design Equipment sizing and procurement management UPS supply modifications Project management Installation supervision Commissioning assistance
Whareroa Switchboard Replacements
Investigation, cost estimates and replacement of nineteen motor control centres at the Fonterra Whareroa site as part of a 10year electrical upgrade plan. This included assistance with the design of new switchrooms, variable speed drive and soft starter replacements, distribution boards and supply cabling as required. McMahon Involvement Investigation, design and equipment specifications Contract specification and […]
Moomba South Australia
The Santos Moomba gas processing plant is located in central Australia, approximately 770km north of Adelaide. McMahon Involvement Electrical engineering services for the upgrade of the plants 11kV electrical reticulation network. This Included a new ring main distribution system and switchgear (42 circuit breakers and 6 generators). In addition McMahon were responsible for undertaking hardware […]
Royal New Zealand Navy
The RNZN required an upgrade of their Devenport naval base shore supply as part of their project ‘Protector’. To generate a 60Hz supply for the naval vessels from the 50Hz New Zealand grid supply frequency, 2 off 3500HP 11kV 50 Hz synchronous motors were direct coupled to 3000kVA 6.6kV 60Hz synchronous generators. The shore supply […]
Motutapu Island
Motutapu island (‘Sacred’ Island) is located in the Hauraki Gulf to the northeast of Auckland city. The project was replacement of overhead 11kV line with underground cabling through an archeologically sensitive area. Interfacing with existing island diesel and solar generation. McMahon Involvement Hardware and protection design (LV, MV) Project management, supervision and commissioning 8km of underground […]
Tokaanu and Rangipo PS Station Services
Tokaanu and Rangipo hydro power stations are part of the Tongariro Power Scheme in the central North Island of New Zealand. Both stations are owned and operated by Genesis Energy. McMahon Involvement McMahon were engaged to replace the station services switchboards at both the Tokaanu and Rangipo power stations. The switchboards provide supplies for the generator […]