S
We have 4 GT's with same Frame. Rated output 35.5 MW. Recently we observed that unit 1 and unit 3 GT's output reaches 29MW (at base load with 32degC ambient) just after a rainfall. Each time we notice AFQ drastically comes down, and consequently increases exhaust temperature (around 572 degC). After a offline water wash MW again increases along with AFQ. Matter to be noticed that change in AFDP is not too much after a rainfall.
Please give me a suggestion what necessary to do to avoid MW decreasing issue in such case?
Please give me a suggestion what necessary to do to avoid MW decreasing issue in such case?