Distribution

Practical Experience Leads to Best Results

Client Name: Powerco

Strategy & Planning: yes

Project Delivery: no

Design: yes

Technical Services: no

As part of Powerco’s network planning function a programme of substation, transformer and protection upgrade projects were established. The programme involved the concept plans, detailed engineers estimate, business case and NPVs required to define the scope. Each site presented a unique set...

Kopu/Coroglen Distribution Line Upgrades

Client Name: PowerCo

Strategy & Planning: yes

Project Delivery: yes

Design: no

Technical Services: no

The 66kV line between Kopu and Coroglen is the original 50kV line built in the 1950’s by New Zealand Electricity Department. The line was constructed of light conductor, and travels through some rugged terrain to bring electricity supply to the upper Coromandel Peninsula. Due to substantial...

Te Rahu 33kV Switching Station

Client Name: Horizon Energy Distribution

Strategy & Planning: yes

Project Delivery: yes

Design: yes

Technical Services: yes

In order to achieve the availability and reliability thresholds set by the Commerce Commission, Horizon needed to develop subtransmission solutions and implement the best fit in order to meet their performance requirements and assure long term subtransmission flexibility. Edison was engaged by...

Transformer Protection Design Upgrades

Client Name: Tenix

Strategy & Planning: no

Project Delivery: no

Design: yes

Technical Services: no

As part of Powerco’s protection upgrade programme, Tenix was responsible for the design and build of transformer AVR and protection upgrades across a range of substations in the Western region. The key challenge with these projects was integrating new protection equipment into the existing...

Ripple Injection Plant Installation

Client Name: Powerco

Strategy & Planning: no

Project Delivery: yes

Design: no

Technical Services: no

Powerco has embarked on a programme to install 11kV and 33kV Ripple Injection Plants at substations throughout their network. The programme includes 14 sites and requires a specialist skill set to ensure minimum disruption during the upgrades. The key challenge for the project delivery team was...

Generator Expertise Slashes SAIDI Impact

Client Name: Powerco

Strategy & Planning: no

Project Delivery: yes

Design: no

Technical Services: yes

Powerco recently commissioned their new 110kV capable transmission line between Coroglen and Kaimarama. The line construction and subsequent commissioning was the culmination of several years of effort on a very complex project in the Coromandel Peninsula. The final piece in the puzzle included...
Edison

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