Search results

Mark Allen, Thanks for the feedback! "Feedback is the most important contribution!"(c) Very good choice to take all the known failure modes into account in your decision.

Phil Corso/Namantingan08, Presuming it's "slipping frequency" or "slip frequency", can you answer the original poster's question of what happens when the slip- or slipping frequency of a generator increases?

Tripping during electrical storms is difficult to protect against. Unfortunately, the best protection is one that divides, or separates, earthing into two separate "systems". Usually called "protective earth" and "functional earth" these two separate earthing systems are most often created...

Have you tried using the CIMPLICITY 'Help' feature? If so, can you say what is causing the misunderstanding or inability to complete the task? You would also need to provide the version of CIMPLICITY. Is the boolean you wish to use already available in the CIMPLICITY project or will you...

tcd1 refers to the first TCDA in the IONET of a particular processor. In the list of alarms below you did not indicate which processor (<C>, <R>, <S>, or <T>) the alarms are associated with. Each processor has its IONET that connects associated cards in other "cores" (modules) to the...

Bob Johnston, Thanks very much for the information! Do you have any documentation on this Trip Multiplier function?

HANEYWEPCO, It's difficult for me to completely understand the failure here. But, let's try to reason through some things. When you're running on liquid fuel, there should be no purging of the liquid fuel lines. There are check valves (or there should be check valves) on each of the liquid...

When did this problem start? Contrary to popular myth, it is not good to rebuild and download to solve every problem--and can even cause more problems than it solves. Signal naming in Mark VI is dynamic and signal names can be arbitrarily re-assigned to memory locations during rebuilds, and...

Marius Jantea, I am unfamiliar with the term "sleeping frequency". I have looked through all my reference and text books, including a copy of "Power Generation Handbook" and can find nothing about "sleeping frequency". Can you provide some context? What is the title of the chapter you find...

Oluwafemi Ogundaisi, Thank you very much for the feedback. It's unfortunate about the damage; best of luck for a speedy return to generation!

ananthbabu, Usually, the only difference in type of inlet filter house is the type that is being used by the OEM when the turbine is bought. And, that is usually determined by cost. Sometimes the space available for the turbine requires a more "compact" turbine and sometimes vertical inlet...

ananthbabu, You're welcome for the information. While I get a little testy at times, I try to remember the patience of others who answered all my questions when I was starting out. Mark X (where X is V or IV or VI or VIe of I or II) is the "generation" of Speedtronic turbine control...

You haven't described the failure mode of the compressor. How is it failing? Those compressors spin at very high speed through an integral speed increase gear, driven by an output shaft of the Accessory Gear box. Have you consulted with the compressor manufacturer? I have called...

Buy a prox with a longer, heat-resistant cable and mount the prox in a cooler area. Proxes and cables can be had in many different lengths. You may need to source a proximitor for the longer cable.

Can you tell us how many fired starts and emergency trips are on each of the two machines? This is the third time in as many weeks I've heard about this alarm. I have yet to be able to look at any application code to determine what's driving it. You should be able to use Toolbox to...

Andy, If you don't find the Control Constant in either FACTORY.ASG or SITE.ASG, write back. There is a "nuclear" solution (just kidding).

Andy, The very FIRST thing you are going to have to do is <b>MAKE BACK-UPS OF THE UNIT1 FILES!!!!</b> The second thing you are going to have to do is understand that the Mark V does NOT use floating point math; it uses fixed point math. Later versions of the Mark V Application Manual...

You will need to provide more information. Is the site particularly dusty? Is there dust from a nearby road or plant that is ingested by the turbine? Will the inlet filter house be equipped with a self-cleaning system to help improve the time between filter changes? These questions...

> 1) what is meant by high and low level wiring in MARK V? This refers to the incoming field wiring cables and conductors. Low level typically refers to any circuit that operates at less than approximately 50 V (AC or DC). This includes 4-20 mA circuit, thermocouple circuit, LVDT excitation...

MG, I have started several times to write a reply, but it was just too long because there is just too much we don't--and can't--know about the configuration of the Mark VIe at your site. We would need to be able to examine electrical schematics and know what power supply cards are used in...