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I'd just like to add that often the terminology is vendor specific. For instance, in as CSA has mentioned about GE gas turbines, "base mode" may be different than what a steam plant considers base mode. In a steam plant, "base mode" (or sometimes called "load mode") often means just put the...

Jesse, I thought and still think like you do. I work in power, but at a public utility. There are many cases where spending a few bucks and upgrading stuff will give great returns IF DONE CORRECTLY. But there is a risk associated with everything (including the status quo). With that said...

One thing that never ceases to amaze me is how complicated and ignorant usually smart people make droop. How bout this definition: Droop is a specific formula that is used to set the gain of the purely proportional control on a governor. Now to me the above seems over complicated...but I...

I've had the pleasure of getting up close with GE EHC and MHC turbines. On a MHC mechanical governed turbine, the drop is set by adjusting the pivot points in the linkages in the governor system. There should be a linkage diagram with all the original documentation. A Woodward UG-8 governor...

How big is the boiler (MW)? What is the inlet and exit temp of the economizer. What is operating pressure of the boiler? The economizer is in the lower temperature area of the boiler. How fast are your startups? Are you following the manufacturer's recommendation for startup and ramp...

QUOTE: If the utility tie breaker opens, the control automatically resets the speed reference to the reset-speed set point. This may be synchronous speed or, if plant frequency needs to be maintained after separating from the utility, the reset speed must be above synchronous speed. This...

Flour, Shaw, Bechtel, and all the other big EPC's all have commissioning departments/experts. Get on the commissioning team at a project if you can. Express to somebody with some pull you really desire to get into commissioning. Getting in the door is the hardest part--once you been there it...

I am by no means a control expert. I just know enough to usually get things working (and then it may take me some time with references to learn the system...but it's all I/O's and logic in the end). I guess it depends on what you want to do. Do you want to be a system integrator and...

>While this seems great at first, this software cannot be used to make > sequencing modifications, view rungs dynamically, download EEPROM partition > information, perform AutoCalibrations, etc. It's just a means of getting > operating data and passing it to a different system (data...

Opinions are my own from my experience, but I'm your peer. 1) Take the PE and pass it. At the end of the day, the test is an academic exercise and getting it done sooner rather than later is best. By no means am I discounting the test (it's TOUGH and I'm studying for it too), but there are...

....and unlike GE, Woodward usually has very good documentation and nearly all of it is available on their website--including governing and power system fundamentals.

First, it is important to understand that the BMS (burner management system) is first and foremost a SAFETY SYSTEM. Design and requirements of it are usually dictated in fire protection code (NFPA in the USA). The BMS exists to prevent boiler explosions and other bad things. It's second...

CSA: I like google: http://www.gepower.com/prod_serv/products/tech_docs/en/downloads/ger3620k.pdf

What "mode" are you running the unit in? Base (fixed MW output), droop (aka speed load), or some other style? Secondly, what is the system frequency doing during these fluctuations? Is it rock solid or moving up/down? This information matters.

> That's <b><i>soooooo</i> CUTE<i>!!!!!</b></i> If I Lulz are I a trolls?! Process, you got a lot of good info there, thanks for posting. However, I just have this feeling that somewhere around the world (probably in India or the East) somebody is going to use control.com posts to plan...

Didn't know about the change to 43 during autocal, thanks for the new knowledge.

The handbook is available here: http://www.gtwbooks.com/ It's worth every penny if you are trying to get budget pricing on units.

Love it! When it doubt jumper! Never mind that there usually is a reason the system had the function. It can't be that important if it's so easy to bypass!

The following two part article is very well done. Boiler-Tuning Basics, Part I http://www.powermag.com/instrumentation_and_controls/Boiler-Tuning-Basics-Part-I_1741.html Boiler-Tuning Basics, Part II http://www.powermag.com/o_and_m/Boiler-Tuning-Basics-Part-II_1859.html

Droop is the misconception that keeps on giving! There is an active power imbalance? Is the frequency of the system changing or is it steady 60/50hz? I agree with CSA in all regards.