I guess 100% is what Toshiba refers to as back seating. We have some Toshiba Engineers scheduled to come out this week.I'll let you know what they determine it to be.Thanks so much for your input and time.
One more bit of information might be helpful..we have UCC (unit coordinated control) we can use sliding psi or fixed..we have options of turbine follow,trb follow + mw,boiler follow ,blr follow +mw and base...thanks again Byrdj
We are in gov control mode ..and sliding pressure..i am not used to not having valves backseated when sliding pressure...the noise has become more pronounced when valve position @ 87% or higher...when we stroked #4 the noise became even louder..in gov mode the valves do indeed move together..we...
We are a 720mw unit 2460psi rated flow and 1050 degrees @ inlet of machine..We have a Toshiba turbine Tandem Compound double flow type..no changes..new plant..been commercial for a year.I'm gathering other info from our Engineers...i'm the Shift supervisor.Thanks
We have developed a strange noise in the area of our control valves over the last month..would only come in for a minute or so up until the past few weeks.Along with the noise we see a very small change in our first stage psi..we have had the noise stop while stroking all 4 cv's but it stops at...