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gustavo_marcelo, >When we said use a load as a bias, how does this bias works >to adjua2t the fuel to maintain the current load? As was told, we can't post images to droopspeedcontrol.com. The image of Constant Settable Droop Speed/Load Control from a GE Control Specification was posted...

rokan_123, My experience--which continues to be correct--is that most sites with diverter dampers find they can't use them as designed. They develop all manner of problems, including with the actuators. They bind up, they stick, they won't open or close fully, and usually then just end up...

gustavo_marcelo, Permission granted. >1. Preselected Load (PSL)- the active power will be >maintaining at the value keyed in by the machine >operator.The value wont be changing during grid >instability. The value the operator keyed in (the Pre-Selected Load Control reference or...

gustavo_marcelo, Good on you, mate, for clarifying your use of abbreviations and keeping my confusion to a minimum. Droop Speed Control and Free Governor Mode of Operation (FGMO) are, I believe, the same thing. Or at least, FGMO is intended to allow a prime mover to respond to grid...

buen dia, gbuendia, Here is what is posted from your reply: >When did this problem start? The alarms came before the TRIP initiated by There is nothing after "....before the TRIP initiated by" And you mentioned re-starting the unit and being unsure about ... something. What...

Hi, Jolek, Thanks for the question; I hope I understand it correctly. What it means is that when the axial compressor inlet temperature is at the value on the nameplate of the gas turbine, and the inlet air filters are clean, and the axial compressor and IGVs are clean, and the unit has...

gbuendia, Hello, When did this problem start? After a trip? After some kind of loss of 125 VDC? After a 125 VDC Battery Ground? After a download from Toolbox? After a VCRC card was changed? It's unusual for a Mark VI to annunciate Diagnostic Alarms that are "outside" the...

gustavo_marcelo, I think you are abbreviating Pre-Selected Load Control as PSL.?.?.? (But you didn't explain that...) Yes, for all intents and purposes Free Governor Mode and Droop Speed Control are the same. And, I get comments like this all the time: >If this PSL is banned & we must...

gustavo_marcelo, >By the way may I know which part I understood wrongly so >that I can re read it...:) Yes; let's try to correct some of the misunderstandings. >Q: I thought at the base load (rated load), FSR = 100%. No; as was explained, Base Load FSR is less than 100%--because...

guatavo_marcelo, One more thing you might be missing about AC (Alternating Current) power systems that is extremely important: When multiple synchronous generators are synchronized together on a grid the magnetic fields of the rotors are LOCKED into the magnetic fields of the stators...

Jolek, Thanks, but I must have done something wrong for gustavo_marcelo. So, we'll try again. (Doesn't it feel sometimes like this site should be named droopspeedcontrol.com?) It would seem, gustavo_marcelo, you are not paying attention to the units. And, yes--it is somewhat confusing...

renjith11121, Please, what is the status of this troubleshooting effort?

gustavo_marcelo, Good on you for trying to use the Search function. But, I don't know WHERE you got the equation you posted--certainly NOT from any post to control.com. Remember: you asked. So, here goes; we're jumping into the pool straight away. The basic equation for <b>Droop</b> speed...

jr94, The generator differential trip lock-out (86G) is a device that can be tripped by MANY different devices (or just one, if it is a multi-function digital protection "relay"). You need to have someone examine the schematics for the 86G relay trip (actuation) circuit and eliminate each one...

easydc, The current drawn by ANY electric motor is directly proportional to the work being done by that motor. In the case of the DC Emergency L.O. Pump Motor, driving the Emergency L.O. Pump, that would be the pressure/flow produced by the pump when the motor is running. It's pretty...

Interesting thoughts.... Where I live a LOT of oil well casing gas is just flared--in large diameter "stacks" that hide the flame; one only sees the heat waves at really cold ambients or when the sun is just right. It's a real waster of energy. There were (maybe still pending) lawsuits by...

The typical GE-design heavy duty gas turbine Emergency L.O. Pump Motor does have a constant field current applied to it, and uses a two-step starter which has resistors in the armature circuit to step up the armature current over a few seconds as the motor is started. There is also a rheostat...

Steve Myres is probably correct--the motor is not producing pressure or flow. Have you checked the coupling between the motor output shaft and the pump shaft? What is the L.O. pressure during and after the start-up of the pump? Most Emergency L.O. Pump motors on GE-design heavy duty gas...

And how is the related to controls? I know--controls is always the cause of all problems. Except this one. One would think the installer (regardless of whether they work for the OEM or not) would be responsible for confirming the information they were provided was suitable for use in...

esdauto18, Isochronous speed control mode is the prime mover governor mode that tells the governor to do whatever is necessary to the energy flow-rate into the prime mover to make the actual speed equal to the speed reference--and the speed reference is usually the speed corresponding to...