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PBA were subcontracted by Siemens throughout the HVDC Pole 3 Project at Transpower’s Haywards and Benmore substations.
PBA came to the rescue when a 33/11kV distribution transformer failed.
PBA were engaged to complete two sets of 33kV cable terminations as part of a switching station upgrade.
Following on from the 220KV CB head replacement at Haywards substation, PBA were engaged to carry out a major overhaul of the removed CB heads to enable Transpower to keep these as serviceable spares.
Recently PBA were engaged to carry out a set of head replacements on a 220kV ABB HPL Circuit Breaker at Haywards substation.
PBA Technical Specialists completed the upgrade of Synchronous Condensers 9 and 10 and their associated Transformers at Haywards substation. The project was completed with the commissioning of SC10 8 months later.
PBA were recently engaged by one of Orion’s HV Electrical Contractors to provide technical support at Larcomb and Weedons substations near Rolleston which form part of the Orion network. The work involved pre-commissioning and commissioning of transformer, line, bus zone and feeder protection systems using GE Multilin relays for 11kV and 66kV equipment.
PBA have recently completed executing a trio of high profile transformer installation projects for Hyundai Heavy Industries.
As part of a specialist services contract PBA manage the distribution and returns of all Sulphur Hexafluoride (SF6) gas for Transpower. PBA provide testing and consolidation of any returned and expended SF6 cylinders. Following an SF6 cylinder amnesty, over 200 cylinders were returned providing plenty of work for PBA’s SF6 team to get on with. PBA have been weighing each cylinder and then testing and categorising these cylinders as new gas, reusable gas and contaminated gas. Cylinders with an existing LAB numbers but with expired inspection dates were evacuated of all their gas and then inspected. Those which were then assessed as being in good condition were sent to test certifiers for recertification, on return these cylinders were ready for re-use.
Business boundaries are continually being expanded by the PBA team and this continues with a group of PBA’s specialists travelling to Samoa to test and commission some 11kV switchgear at the capital city’s hospital.
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