Waipa Networks Limited owns and operates the electricity distribution network in an 1,865 square kilometre area south of Hamilton, in the Waikato region in New Zealand.
One of Waipa’s main load centres is the town of Cambridge, which is supplied from Transpower’s Cambridge Substation (site ID: CBG). Due to continued network growth and customer demand, it is projected the firm capacity of the Cambridge Grid Exit Point (GXP) will be exceeded. To respond to this lack of available capacity at the Cambridge GXP, Waipa proposed to install generator support on their network to reduce the peak loading in the medium term.
McMahon Limited was engaged to provide end to end electrical engineering design services for the new installation which included the installation of three 1250 kVA generators, a generator termination panel and a 4 MVA step up transformer connecting to the Waipa Network at 11 kV via a Noja switch.
Waipa Networks Anglo Tasman