Generator Turbine Tripping
- event Queensland Power Outage
- category Generator turbine fire
- contingency type Generators tripping
- primary cause Coal Plant explosion and fire
- secondary causes No content
- impacts No content
- mitigations No content
- number of customers affected No content
- epri research program
- epri research project
- epri research deliverable
description
Callide Power Station (Callide) is a thermal power plant in central Queensland consisting of two 350 megawatt (MW) generating units at Callide B (B1 and B2) and 466 MW and 420 MW generating units at Callide C (C3 and C4 respectively).
- Prior to the event, Callide C4 was operating at 278 MW. At 1334 hrs on 25 May 2021, Callide C4 ceased exporting active power and was observed to absorb approximately 50 MW and 300 megavolt-amperes reactive (MVAr) from the power system, with voltages at Calvale 275 kV substation remaining healthy at approximately 1.0 per unit.
- At 1340 hrs on 25 May 2021, CS Energy informed AEMO of a turbine hall fire at Callide C.
- At 1344 hrs, Callide C3 tripped from around 417 MW