A reading of 15 drops in 5 minutes would be categorized as which?

A reading of 15 drops in 5 minutes would be categorized as which?

• A. GT running leakage
• B. GT leakage
• C. GT seepage
• D. Weepage

Answer: (A)

When analyzing leaks, you distinguish based on when the leak occurs and how fast it drips. A reading of 15 drops in 5 minutes indicates a steady drip under pressure while the turbine is running. That pattern is characteristic of running leakage, which is the leakage you see during operation when the system is under load and moving fluids at higher pressure. Weepage and seepage describe much slower, minor drips or dampness that can occur even when the system isn’t actively running or under only light pressure; they’re not typically seen as a noticeable drip rate like 15 drops in five minutes. GT leakage without the qualifier running would imply a leak present regardless of operation, which isn’t what this running-condition measurement shows.

When analyzing leaks, you distinguish based on when the leak occurs and how fast it drips. A reading of 15 drops in 5 minutes indicates a steady drip under pressure while the turbine is running. That pattern is characteristic of running leakage, which is the leakage you see during operation when the system is under load and moving fluids at higher pressure.

Weepage and seepage describe much slower, minor drips or dampness that can occur even when the system isn’t actively running or under only light pressure; they’re not typically seen as a noticeable drip rate like 15 drops in five minutes. GT leakage without the qualifier running would imply a leak present regardless of operation, which isn’t what this running-condition measurement shows.