Search results

controlexpert51, Whenever I've had an application question about a switch and I've contacted CCS Dual Snap, or one of their manufacturer's representatives, they've always been very helpful with a recommendation once I've explained the requirements of the application.

James, I'm not familiar with Centaur turbines, but I am familiar with GE-design heavy duty gas turbines which monitor exhaust temperature spreads to protect the turbine against combustion problems which can cause catastrophic failures of turbines. There are almost always multiple fuel...

benjie, When you're analyzing a problem like this it's important to look at all aspects of the problem. In this case, that includes the valve itself (ambient temperature rating of the valve; rating of the valve components/seals; pressures against which the valve has to operate and the rating...

murali_aramco, Most GE-design heavy duty gas turbines have two "buttons" on the HMI display to allow selection of "SIMPLE CYCLE" or "COMBINED CYCLE" modes. Sometimes they're labeled "SIMPLE CYCLE" and "IGV EXH TEMP" control, or something similar. In "simple cycle" mode, the IGVs are left...

ARK, Most turbine governors will automatically reduce (and very quickly in most cases!) the energy flow-rate into the turbine when the generator breaker is determined to be open. This is done to prevent overspeeding the turbine and causing catastrophic damage, and even personnel death in some...

jackdaniel, Most of us have lingering questions running through our heads; don't feel alone in this. 1. So, I think what you're trying to describe is something like this: A generator-set (prime mover and generator; remember: the generator is just converting torque to amperes, just like the...

murali_aramco, Preselect Load Control is a lazy man's way of changing load on a GE-design heavy duty gas turbine. It is not usually configured properly and results in load swings of +/- 1-2 MW around the intended load setpoint. It has nothing whatsoever to do with heat rate and/or...

Your post is not clear. It's not known if the unit in question is operating in Simple- or Combined Cycle mode, or if IGV Exhaust Temperature Control is enabled and active. <i><b>Regardless,</i></b> there is no way to improve heat rate and/or gas turbine efficiency when operating at Part...

No to all questions.

Try: http://www.control.com/thread/1415928010#1415928010

If you will use the control.com 'Search' feature you will find a very recent and excellent posting by an esteemed contributor, MARKVIGUY, in which he has supplied very detailed instructions for replacing a VCMI card. Use the search term: +VCMI And also about major and minor...

Muhammad Asim Khan, Recommended off-line water wash frequencies are just that: recommendations. Site conditions <b>ALWAYS</b> determine actual off-line water wash frequencies. And, that can change depending on time of year and type of contaminants. If the heavy fog condition continued...

Have you replaced and/or checked the proximitor probes? I recently had an intermittent problem with a prox probe used on a axial position application. Tried new cables (all of them), new prox's, and finally, when the Front Standard could be opened we replaced the proximitor probe and the...

rvsaradhi, When one of the 14 GE-design Frame 5 units at your site fails the gas leak test during a start, what happens? What is the procedure for responding to a failed gas leak test? Do you have a spare combined gas valve assembly and a trained crew at the ready with tools and equipment...

rvsaradhi, The gas fuel valve leak test was originally implemented because GE Safety Review Board felt it was necessary to protect against lawsuits. I believe it is also now required by some nations and regions and local technical regulations and/or standards. In many cases GE "forced" this...

icengineerpak, What does Tyco say about the problem? They provide a warranty to GE, and when you encounter a problem like this you can contact Tyco for assistance with problems on their equipment. I'm told the PAC (Power Answer Center) is a mere shell of itself these days, but you should...

job2004, When we're talking about electrical power--<b>real power</b>: watts; kW, MW--we're basically referring to current. [NOTE: I'm not talking about the effects of reactive current--VArs--on the system, which is another contributor to grid problems when load is high. This description is...

AAK, Glad to be of help! For me, it's very confusing when questions in a thread differ from the original topic/subject without some kind of clarification. It makes it appear (to me) that the questioner is implying some kind of relationship to the original topic/subject and, as in this...

Strange questions. GE-design fuel nozzles are usually designed to be operated in a particular range of pressure, and operation outside that range can result in some problems. But, as simple as possible: High gas pressure inside the combustor will result when the gas fuel flow-rate is...

Have you asked your local B-N supplier? Here's a link to the only document I've been able to find that seems to indicate it's exclusively designed for the B-N Trendmaster 2000 system (which is something I've never heard of before)...