Grid capability and configuration

Interconnection Asset Capacity Reports

Interconnection Asset Capacity and Grid Configuration reports, published as required by Section 12.118 of Electricity Industry Participation Code.

Title Date
Interconnection Branch Capacity [ xlsx 76.04 KB ] 30/05/2017

 

Network Diagrams

The Network Diagrams include NIPS, SIPS, SPD Drawings and Substation Locators and are contained within the System Operator section of our website.

To view the drawings, please visit this page.

 

Relay and Instrument Diagrams

Relay and Instrument Diagrams are for individual substations and show a high level of detail.

To make available the latest relay and instrument information, a diagram may be unapproved by Transpower. An unapproved drawing is for information only and is stamped UNCONTROLLED COPY and should be used with caution.

They should be used when any reference is required for switching, making safe, and other operational actions that can affect personnel safety or power system security.

Please note you will need to have an account and access to the secure area to  of our website, and be signed in, before you will be able to access these pages.

Relay and Instrument Diagrams: South Island

Relay and Instrument Diagrams: South North Island

Relay and Instrument Diagrams: North North Island

 

Single Line Diagrams

The Transpower Regional  Single Line Diagram defines Transpower and our customer asset ownership/operational control boundaries and connect groups of substations.  These diagrams have guideline status only.

The Transpower substation Single Line Diagram (Operating) defines Transpower's operational assets (and customer operational assets where the SLD is of mutual interest). Only the Operating SLDs must be used for reference required for switching, making safe and other operational actions that can affect personnel safety or power system security.

Single Line Diagrams are updated within a month of the changes occurring on site.

Please note you will need to have an account and access to the secure area to  of our website, and be signed in, before you will be able to access these pages.

Single Line Diagram Operating: South Island

Single Line Diagram Operating: South North Island

Single Line Diagram Operating: North North Island

Single Line Diagram Operating: Regional