Project Overview

We are proposing to replace 25 and refurbish 24 isolators at nine substations to maintain safe and reliable electricity supply to customers.

and reliable electricity supply to customers.

This Regulatory Investment Test for Transmission (RIT-T) Project Specification Consultation Report (PSCR) identifies the need to replace 25 and refurbish 24 isolators at nine substations as the preferred solution to manage the risk that these assets will fail.

Isolators are mechanically operated switches that isolate a part of an electrical circuit under no-load conditions. They allow circuit breakers, transformers, transmission lines and customer connection points to be safely isolated for work to be performed by field staff. The failure of an isolator may prevent the safe maintenance or return to service of plant and customer connections as the isolator may be unable to open or close when required.

The isolators are selected for replacement to enable the provision of spare components, or remove a known safety risk, or remove remnant end of life isolators.

The isolators are selected for refurbishment are to extend asset life.

Project Specification Consultation Report (PSCR)

RIT-T

Reports Closing Dates Status Submissions
Project Specification Consultation Report Consultation Open
  • -