Which device isolates the Gas Turbine Generator (GTG) module in the event of a fire or leak?

Which device isolates the Gas Turbine Generator (GTG) module in the event of a fire or leak?

• A. Emergency quick-closing valve
• B. Manual shutoff valve
• C. Fuel isolation valve
• D. GTG bypass valve

Answer: (A)

Isolating the GTG quickly in a fire or leak is all about stopping the fuel supply to prevent feeding the fire and reducing potential damage. The device that does this best is the emergency quick-closing valve. It’s placed in the fuel line to the GTG and wired to the fire-detection or emergency shutdown system so it can shut automatically within seconds when an unsafe condition is detected. This rapid, automatic action is essential because waiting for a manual action would be too slow and could allow the fire to intensify. A manual shutoff valve is slower and requires a person to act, which isn’t reliable in an emergency. A fuel isolation valve could refer to a general shutoff but isn’t necessarily automatic or fastest. A bypass valve would route fuel around the GTG rather than isolate it, so it doesn’t stop the fuel flow to the module.

Isolating the GTG quickly in a fire or leak is all about stopping the fuel supply to prevent feeding the fire and reducing potential damage. The device that does this best is the emergency quick-closing valve. It’s placed in the fuel line to the GTG and wired to the fire-detection or emergency shutdown system so it can shut automatically within seconds when an unsafe condition is detected. This rapid, automatic action is essential because waiting for a manual action would be too slow and could allow the fire to intensify.

A manual shutoff valve is slower and requires a person to act, which isn’t reliable in an emergency. A fuel isolation valve could refer to a general shutoff but isn’t necessarily automatic or fastest. A bypass valve would route fuel around the GTG rather than isolate it, so it doesn’t stop the fuel flow to the module.