What is the final step in the sequence of starting a Gas Turbine?

The final step in the sequence of starting a gas turbine is loading. After the gas turbine has gone through the essential processes of preparation for startup, warmup, and crank and lightoff, it is then ready for loading, where the turbine is brought up to the desired operational capacity and begins to generate the required power output.

Loading involves gradually introducing the turbine to its operational load conditions. This step is crucial as it ensures that the system can handle the operational stresses and requirements of full service. The earlier steps are critical to ensure the turbine is in a safe and functioning condition for this load application.

In summary, the loading phase represents the transition from a start-up to full operational capability, allowing the gas turbine to perform its intended function efficiently and effectively.