Heywood interconnector
| Heywood Interconnector | |
|---|---|
 Map of Heywood Interconnector | |
| Location | |
| Country | Australia |
| State | Gould Creek, South Australia |
| Ownership information | |
| Owner | ElectraNet |
| Operator | Australian Energy Market Operator |
| Construction information | |
| Commissioned | 1988 |
| Technical information | |
| Type | overhead transmission line |
| Type of current | AC |
| AC voltage | 275kV |
The Heywood interconnector is a 275 kV AC overhead
Routing
The Victorian end of the interconnector is the
Function
When the Heywood interconnector was built in 1988, the primary purpose was to move cheaper coal-powered electricity from Victoria to South Australia. In later years, it has been used to an increasing degree to transport wind-powered electricity from South Australia to Victoria.
The 2016 South Australian blackout occurred because multiple windfarms reduced power during a major thunderstorm, after a tornado caused multiple towers on transmission lines to collapse.[4] The Heywood interconnector became overloaded, as the missing generation was automatically drawn from Victoria. The tripping of the interconnector lead to an islanding of the SA power system, which fell into a rapid frequency decline.
References
- ^ "SA-Vic (Heywood) Interconnector Upgrade". ElectraNet. 30 January 2012. Retrieved 12 July 2019.
- ^ a b "South Australia to Victoria Interconnector Upgrade" (PDF). ElectraNet. September 2014. Retrieved 12 July 2019.
- ^ "INTERCONNECTOR CAPABILITIESFOR THE NATIONAL ELECTRICITY MARKET" (PDF). Australian Energy Market Operator. November 2017. p. 6. Retrieved 12 July 2019.
- ^ "AEMO report into SA blackout raises questions, answers none". 5 October 2016.
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