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Thank you for your answers. I was sure that QD core was not involved in Flamed detection . Controls Guy25.

Your question is little "vague" , as power reset and loss of power supply/loss of signal can be interpreated by different manner. Is your question refer to loss of power supply of the device?? is that power reset did mnually(hand)? We do not know also, to which equipment that device is...

Hello ALL, Cheedee, Can you precise frame type of this unit??? What kind of troubleshooting are you referring ( you stated while troubleshooting ...)in your post? Did all the flame detector /tracker/scanner displaying was correct before ? By reading your post , we could understand that...

Hello all, CSA , I am not just omniscient telepath .... I do not know where this idea come from , I take it as a joke (LOL), I know that there is nothing wicked with joking sometimes, so I do not take it personnaly. RATM,CSA My post is clear, ( on my first post I clearly explained that to...

Hi all, Looks like I was right from the beginning, there is surely ( you are surely ) a misunderstood /confused on Island mode/isochoronous mode! ControlsGuy25.

You are welcome Ctoren!!!! I am always glad to support /help people , mostly when they are students ! And I am sure that you can perform that study smoothly with excpected results! Keep on familiarize with Laplace Fourier FFT, Nyquist ? Bode plots and other stuff that a good opprortunity for...

Hi I found 2 interesting documents that can help you to understand much better these formulas . For my opinion in the 1st doc that I shared, It is about linearization of these equations due to square term. You have to get familiarized with linearization , differentiation (differentielle in...

Please have a carefull reading on this excellent attached article. I will have a read and tell you more about feedforward and disturbances modelling . Do not hesitate to share your feedback on this article. ControlsGuy25.

Thank you for these clarifications. I first suggest you to have a search on web there are many modelling on cruise control system. One question is : How the throttle command is been initiated on your block diagram? Is just send a speed setpoint limit is enough on your control "...

My advise for you would be to design/draw a block diagram prior to do any calculations or simulations. That is the best solution to have a better overall view of the studied system. Then you can post the block diagram here, and then we can give you some notes/comments to support you in this...

Thanks for your response, 1. Is there any recommended time delay factor for Vibration probes so that we can add that limit since the issue is limited to a very sort time period 2. Is there any standard that permits time delay setting for different sensors. I cannot advise you on adjusting...

One would expect a thank you at least for contribution ! No problem I know now !

This is exctracted from an article : Time Delay in Dynamic Systems Time delay is a shift in the effect of an input on an output dynamic response. A first-order linear system with time delay is: τpdy(t)dt=−y(t)+Kpu(t−θp) Looks like there an equality...

Hello ALL, My First question would be where did this vibration spike located ( bearing , surface?? ) What is the vibration monitoring rack system Model/type & Instrumentation OEM associated installed? Steam Turbine controls systems..,,? Then we can try to support you as best as we can on...

Hello ALL Ctoren I gues that the formula is not well displayed/written, Would you tell us if that is for first/second order Filter, or anything else? Looks like it is a formula for Transfer function onf a harmonics filter... We must know what is equal to the formula ? There are some various...

Hi Ratm, Thank you for such feedback. Well I was pretty sure about how unit (GT ) Been operated /started from SLD provided. I will try to get some answers/comments on your last questions : You asked what will happen to go into a island mode? Again I would say that it is rather an "house load...

Hello All Ratm, After have read your post,I think that you should have a better overall control concepts of your plant. For example you defining island mode like: "Island mode is when there is a external failure and the turbine is disconnected (52G open) to the grid and keeps running in FSNL...

Hello all, Mutahir, As I suggested you before (seee my previous post), If you want to have a good overview and picture of cross current compensation, I strongly suggest you to read that excellent article...

Hello All, I may have the right document for your need. Just drop me a PM and we can exchange e-mails as file is too big to attach here. James.

Thank for the feedback!